Engine Performance Diagnostic Trouble Code (DTC) Diagnostics - 3 Of 14 (Convertible)

• EFI-433: Rear Knock Sensor (KS), Signal. Faulty Signal. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-143, 433
  • Faulty signal. Intermittent fault
• EFI-433: Rear Knock Sensor (KS), Signal. Faulty Signal. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-143, 433
  • Faulty signal. Permanent fault
• EFI-435: Front Heated Oxygen Sensor (Ho2S). Too Slow (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-435
    • EFI-435: Front heated oxygen sensor (HO2S) too slow
  • Faulty signal
    • Notes
    • Checking compression
      • Checking the compression
      • Fault tracing information
    • Checking fuel and residual pressures
    • Replacing Front Heated Oxygen Sensor (HO2S)
    • Checking for air leakage
      • Checking for air leakage in the intake system
      • Fault tracing information
      • Checking for air leakage in the exhaust system
    • Fuel pressure and residual pressure
    • Check the fuel pump relay's two-stage function
      • Check the fuel pump relay's two-stage function
      • Checking full-speed
      • Checking for open-circuit
      • Checking half-speed
      • Replacement of component
      • Check the lead between the relay and the series resistance.
      • Check the series resistance
      • Verification
    • Information
      • Fault-tracing information
    • Checking fuel pressure and residual pressure
      • Notes
      • Choosing a method for taking a reading
      • Checking vacuum hose to pressure regulator
      • Checking hose and connection
      • Connect pressure gauge
      • Starting fuel pump (FP)
      • Measuring line pressure
      • Line pressure too high
      • Replacing Pressure Regulator
      • Checking for blockage
      • Line pressure too low
      • Checking fuel filter
      • Replacing Fuel Filter
      • Checking pressure regulator, pressure reduction
      • Checking pressure regulator, pressure increase
      • Checking residual pressure
      • Checking injectors, connections, pressure regulator, fuel pump non-return valve and lines
      • Disconnecting pressure gauge
      • Stop fuel pump (FP)
    • Stop fuel pump
    • Start fuel pump
    • Verification
      • Verification
• EFI-436: Rear Heated Oxygen Sensor (Ho2S). Compensation (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-436
    • EFI-436: Rear heated oxygen sensor (HO2S), compensation
  • Faulty signal
    • Notes
    • Checking compression
      • Checking the compression
      • Fault tracing information
    • Checking fuel and residual pressures
    • Replacing Front Heated Oxygen Sensor (HO2S)
    • Checking for air leakage
      • Checking for air leakage in the intake system
      • Fault tracing information
      • Checking for air leakage in the exhaust system
    • Fuel pressure and residual pressure
      • Notes
      • Check the fuel pump relay's two-stage function
      • Checking full-speed
      • Checking for open-circuit
      • Checking half-speed
      • Replacement of component
      • Check the lead between the relay and the series resistance.
      • Check the series resistance
      • Verification
    • Information
      • Fault-tracing information
    • Checking fuel pressure and residual pressure
      • Notes
      • Choosing a method for taking a reading
      • Checking vacuum hose to pressure regulator
      • Checking hose and connection
      • Connect pressure gauge
      • Starting fuel pump (FP)
      • Measuring line pressure
      • Line pressure too high
      • Replacing Pressure Regulator
      • Checking for blockage
      • Line pressure too low
      • Checking fuel filter
      • Replacing Fuel Filter
      • Checking pressure regulator, pressure reduction
      • Checking pressure regulator, pressure increase
      • Checking residual pressure
      • Checking injectors, connections, pressure regulator, fuel pump non-return valve and lines
      • Disconnecting pressure gauge
      • Stop fuel pump (FP)
    • Stop fuel pump
    • Start fuel pump
    • Verification
      • Verification
• EFI-442: Pulsed Secondary Air Injection System (Pair) (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-442
    • EFI-442: Pulsed secondary air injection system (PAIR), flow fault
• EFI-443: Three-Way Catalytic Converter (TWC) Efficiency. Faulty Signal (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-443
    • EFI-443: Three-way catalytic converter (TWC) efficiency
  • Faulty signal
    • Notes
    • Checking compression
      • Checking the compression
      • Fault tracing information
    • Checking fuel and residual pressures
    • Replacing Rear Heated Oxygen Sensor (HO2S)
    • Checking for air leakage in the intake system
    • Fault tracing information
    • Checking for air leakage in the exhaust system
    • Fuel pressure and residual pressure
      • Notes
      • Check the fuel pump relay's two-stage function
      • Checking full-speed
      • Checking for open-circuit
      • Checking half-speed
      • Replacement of component
      • Check the lead between the relay and the series resistance.
      • Check the series resistance
      • Verification
    • Information
      • Fault-tracing information
    • Checking fuel pressure and residual pressure
      • Notes
      • Choosing a method for taking a reading
      • Checking vacuum hose to pressure regulator
      • Checking hose and connection
      • Connect pressure gauge
      • Starting fuel pump (FP)
      • Measuring line pressure
      • Line pressure too high
      • Replacing Pressure Regulator
      • Checking for blockage
      • Line pressure too low
      • Checking fuel filter
      • Replacing Fuel Filter
      • Checking pressure regulator, pressure reduction
      • Checking pressure regulator, pressure increase
      • Checking residual pressure
      • Checking injectors, connections, pressure regulator, fuel pump non-return valve and lines
      • Disconnecting pressure gauge
      • Stop fuel pump (FP)
    • Stop fuel pump
    • Start fuel pump
    • Verification
      • Verification
• EFI-444: Accelerometer. Signal Too High. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-444
  • Signal too high. Intermittent fault
    • Notes
    • Checking cables and terminals
    • Information
      • Fault-tracing information
• EFI-444: Accelerometer. Signal Too High. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-444
  • Signal too high. Permanent fault
    • Notes
    • Checking power cable
    • Checking for a short-circuit
    • Checking ground lead
    • Checking control module connector
    • Checking for an open-circuit
    • Fault-tracing information
    • Checking the signal cable
    • Checking accelerometer
    • Checking accelerometer, continued
    • Replacing Accelerometer
    • Checking power cable resistance to ground
    • Car-equipment: level
    • Checking the air conditioning (A/C) pressure sensor
    • Checking fuel tank pressure sensor
    • Checking atmospheric pressure sensor
    • Replacing Atmospheric Pressure Sensor
    • Replacing Air Conditioning (A/C) Pressure Sensor
    • Replacing Fuel Tank Pressure Sensor
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• EFI-444: Accelerometer. Signal Too Low. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-444
  • Signal too low: Intermittent fault
    • Notes
    • Checking cables and terminals
    • Information
      • Fault-tracing information
• EFI-444: Accelerometer. Signal Too Low. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-444
  • Signal too low: Permanent fault
    • Notes
    • Checking the signal cable
    • Replacing Accelerometer
    • Checking for a short-circuit
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• EFI-445: Pulsed Secondary Air Injection System (Pair) Pump. Signal Too High. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-445
    • EFI-445: Pulsed secondary air injection system (PAIR) pump, signal
  • Signal too high. Intermittent fault
    • Notes
    • Checking cables and terminals
    • Information
      • Fault-tracing information
• EFI-445: Pulsed Secondary Air Injection System (Pair) Pump. Signal Too High. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-445
  • Signal too high. Permanent fault
    • Notes
    • Checking the signal cable
    • Replacing Pulsed Secondary Air Injection System (PAIR) Pump Relay
    • Checking for a short-circuit
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• EFI-445: Pulsed Secondary Air Injection System (Pair) Pump. Signal Too Low. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-445
  • Signal too low. Intermittent fault
    • Notes
    • Checking cables and terminals
    • Information
      • Fault-tracing information
• EFI-445: Pulsed Secondary Air Injection System (Pair) Pump. Signal Too Low. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-445
  • Signal too low. Permanent fault
    • Notes
    • Checking power cable
    • Checking for an open-circuit
    • Checking signal cable resistance
    • Checking the signal cable
    • Checking pulsed secondary air injection system (PAIR) pump relay
    • Checking for contact resistance and oxidation
    • Replacing Pulsed Secondary Air Injection System (PAIR) Pump Relay
    • Connector A
      • Notes
      • Connecting up the Test box to Motronic 4.3
      • Connection of break-out box to connector A (black)
      • Checking ground terminals
      • Checking for open-circuit, contact resistance and oxidation
      • Verification
    • Information
      • Fault-tracing information
    • Verification
      • Verification
• EFI-446: Pulsed Secondary Air Injection System (Pair) Pump. Leakage. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-446
    • EFI-446: Pulsed secondary air injection system (PAIR) valve, leakage
  • Leakage. Intermittent fault
    • Notes
    • Checking hoses and pipes
    • Information
      • Fault-tracing information
• EFI-446: Pulsed Secondary Air Injection System (Pair) Pump. Leakage. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-446
  • Leakage. Permanent fault
    • Notes
    • Checking solenoid valve
    • Checking pulsed secondary air injection system (PAIR) valve
    • Checking for air leakage
    • Replacing Pulsed Secondary Air Injection System (PAIR) Valve
    • Checking solenoid valve signal cable
    • Replacing Solenoid Valve
    • Checking cables and terminals
    • Verification
      • Verification
      • Verification, continued
    • Information
      • Fault-tracing information
• EFI-447: Pulsed Secondary Air Injection System (Pair) Solenoid Valve. Signal Missing. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-447
    • EFI-447: Pulsed secondary air injection system (PAIR) solenoid valve, signal
  • Signal missing. Intermittent fault
    • Notes
    • Checking cables and terminals
    • Information
      • Fault-tracing information
• EFI-447: Pulsed Secondary Air Injection System (Pair) Solenoid Valve. Signal Missing. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-447
  • Signal missing. Permanent fault
    • Notes
    • Checking power cable
    • Checking for an open-circuit
    • Checking solenoid valve
    • Checking the signal cable
    • Fault-tracing information
    • Replacing Solenoid Valve
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• EFI-447: Pulsed Secondary Air Injection System (Pair) Solenoid Valve. Signal Too High. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-447
  • Signal too high. Intermittent fault
    • Notes
    • Checking cables and terminals
    • Information
      • Fault-tracing information
• EFI-447: Pulsed Secondary Air Injection System (Pair) Solenoid Valve. Signal Too High. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-447
  • Signal too high. Permanent fault
    • Notes
    • Checking solenoid valve signal cable
    • Checking for a short-circuit
    • Replacing Solenoid Valve
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• EFI-447: Pulsed Secondary Air Injection System (Pair) Solenoid Valve. Signal Too Low. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-447
  • Signal too low. Intermittent fault
    • Notes
    • Checking cables and terminals
    • Information
      • Fault-tracing information
• EFI-447: Pulsed Secondary Air Injection System (Pair) Solenoid Valve. Signal Too Low. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-447
  • Signal too low. Permanent fault
    • Notes
    • Checking for a short-circuit
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• EFI-448: Pulsed Secondary Air Injection System (Pair) Pump. Flow Too Low. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-448
    • EFI-448: Pulsed secondary air injection system (PAIR) pump, flow fault
  • Flow too low: Intermittent fault
    • Notes
    • Checking hoses and pipes
    • Information
      • Fault-tracing information
• EFI-448: Pulsed Secondary Air Injection System (Pair) Pump. Flow Too Low. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-448
  • Flow too low: Permanent fault
    • Notes
    • Checking pulsed secondary air injection system (PAIR) pump
    • Checking pulsed secondary air injection system (PAIR) pump power supply
    • Replacing Pulsed Secondary Air Injection System (PAIR) Pump Relay
    • Checking pulsed secondary air injection system (PAIR) pump resistance
    • Replacing Pulsed Secondary Air Injection System (PAIR) Pump
    • Checking pulsed secondary air injection system (PAIR) pump ground terminal
    • Fault-tracing information
    • Checking pulsed secondary air injection system (PAIR) valve
    • Checking pulsed secondary air injection system (PAIR) pipe
    • Cleaning
    • Checking vacuum hoses
    • Check
    • Checking lilac hose
    • Replacing Solenoid Valve
    • Repairing hose
    • Checking pulsed secondary air injection system (PAIR) hose
    • Replacing Pulsed Secondary Air Injection System (PAIR) Valve
    • Checking hoses
    • Replacing Faulty Hoses
    • Verification
      • Verification
      • Verification, continued
    • Information
      • Fault-tracing information
• EFI-448: Pulsed Secondary Air Injection System (Pair) Pump. Leakage. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-448
  • Leakage. Intermittent fault
• EFI-448: Pulsed Secondary Air Injection System (Pair) Pump. Leakage. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-448
  • Leakage. Permanent fault
• EFI-451: Misfire Cylinder 1 (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-45X, EFI-543, EFI-545, EFI-55X
    • EFI-451: Misfire emission level cylinder 1, EFI-452: Misfire emission level cylinder 2, EFI-453: Misfire emission level cylinder 3, EFI-454 Misfire emission level cylinder 4, EFI-455: Misfire emission level cylinder 5, EFI-543: Misfire emission level from at least 1 cylinder, EFI-551: Misfire with three-way catalytic converter (TWC) damage cylinder 1, EFI-552: Misfire with three-way catalytic converter (TWC) damage cylinder 2, EFI-553: Misfire with three-way catalytic converter (TWC) damage cylinder 3, EFI-554: Misfire with three-way catalytic converter (TWC) damage cylinder 4, EFI-555: Misfire with three-way catalytic converter (TWC) damage cylinder 5, EFI-545: Misfire with three-way catalytic converter (TWC) damage from at least 1 cylinder
  • Misfire in one cylinder
    • Notes
    • Checking spark plugs
    • Replacing fuel injector
    • Checking compression
    • Replacing Spark Plugs
    • Checking cooling system
    • Checking ignition cables
    • Checking distributor cap and rotor
    • Checking flywheel/pulse wheel
    • Checking for damage
    • Checking injector cables and terminals
    • Checking for air leakage
    • Checking fuel and residual pressures
    • Information
      • Fault-tracing information
    • Injector valve, replacement
• EFI-452: Misfire Cylinder 2 (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-45X, EFI-543, EFI-545, EFI-55X
  • Misfire in one cylinder
• EFI-453: Misfire Cylinder 3 (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-45X, EFI-543, EFI-545, EFI-55X
  • Misfire in one cylinder
• EFI-454: Misfire Cylinder 4 (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-45X, EFI-543, EFI-545, EFI-55X
  • Misfire in one cylinder
• EFI-455: Misfire Cylinder 5 (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-45X, EFI-543, EFI-545, EFI-55X
  • Misfire in one cylinder
• EFI-514: Engine Cooling Fan (FC), Low-Speed. Signal Missing. Intermittent Fault. (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-514
    • EFI-514: Engine cooling fan (FC) low-speed, signal
  • Signal missing. Intermittent fault
    • Notes
    • Checking cables and terminals
    • Information
      • Fault-tracing information
• EFI-514: Engine Cooling Fan (FC), Low-Speed. Signal Missing. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-514
  • Signal missing. Permanent fault
    • Notes
    • Checking power cable
    • Checking for an open-circuit
    • Checking the signal cable
    • Checking control module connector
    • Checking for contact resistance and oxidation
    • Checking signal cable, high-speed
    • Checking for a short-circuit
    • Checking engine cooling fan (FC) relay
    • Replacing Engine Cooling Fan (FC) Relay
    • Verification
      • Verification
      • Verification, continued
    • Information
      • Fault-tracing information
• EFI-514: Engine Cooling Fan (FC), Low-Speed. Signal Too High. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-514
  • Signal too high. Intermittent fault
    • Notes
    • Checking cables and terminals
    • Information
      • Fault-tracing information
• EFI-514: Engine Cooling Fan (FC), Low-Speed. Signal Too High. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-514
  • Signal too high. Permanent fault
    • Notes
    • Checking the signal cable
    • Replacing Engine Cooling Fan (FC) Relay
    • Checking for a short-circuit
    • Verification
      • Verification
      • Verification, continued
    • Information
      • Fault-tracing information
• EFI-514: Engine Cooling Fan (FC), Low-Speed. Signal Too Low. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-514
  • Signal too low. Intermittent fault
    • Notes
    • Checking cables and terminals
    • Information
      • Fault-tracing information
• EFI-514: Engine Cooling Fan (FC), Low-Speed. Signal Too Low. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-514
  • Signal too low. Permanent fault
    • Notes
    • Checking the signal cable
    • Replacing Engine Cooling Fan (FC) Relay
    • Checking for a short-circuit
    • Verification
      • Verification
      • Verification, continued
    • Information
      • Fault-tracing information
• EFI-521: Front Heated Oxygen Sensor (Ho2S). Signal Too High. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-521, EFI-522
    • EFI-521: Front heated oxygen sensor (HO2S), preheating EFI-522 Rear heated oxygen sensor (HO2S), preheating
  • Signal too high. Intermittent fault
    • Notes
    • Checking cables and terminals
    • Information
      • Fault-tracing information
• EFI-521: Front Heated Oxygen Sensor (Ho2S). Signal Too High. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-521, EFI-522
  • Signal too high. Permanent fault
    • Notes
    • Checking the signal cable
    • Replacing Heated Oxygen Sensor (HO2S)
    • Checking for a short-circuit
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• EFI-521: Front Heated Oxygen Sensor (Ho2S). Signal Too Low. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-521, EFI-522
  • Signal too low. Intermittent fault
    • Notes
    • Checking cables and terminals
    • Information
      • Fault-tracing information
• EFI-521: Front Heated Oxygen Sensor (Ho2S). Signal Too Low. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-521, EFI-522
  • Signal too low. Permanent fault
    • Notes
    • Checking power cable
    • Checking for an open-circuit
    • Checking the signal cable
    • Checking for a short-circuit
    • Checking signal cable resistance to ground
    • Checking signal cable resistance
    • Checking heated oxygen sensor (HO2S)
    • Checking connector
    • Replacing Heated Oxygen Sensor (HO2S)
    • Connecting breakout box, connector A
      • Connecting the breakout box
      • Connecting breakout box to Motronic 4.4 connector A (black)
      • Checking ground terminals
      • Checking for an open-circuit
      • Reading is OK
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• EFI-522: Rear Heated Oxygen Sensor (Ho2S). Signal Too High. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-521, EFI-522
  • Signal too high. Intermittent fault
• EFI-522: Rear Heated Oxygen Sensor (Ho2S). Signal Too High. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-521, EFI-522
  • Signal too high. Permanent fault
• EFI-522: Rear Heated Oxygen Sensor (Ho2S). Signal Too Low. Intermittent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-521, EFI-522
  • Signal too low. Intermittent fault
• EFI-522: Rear Heated Oxygen Sensor (Ho2S). Signal Too Low. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-521, EFI-522
  • Signal too low. Permanent fault
• EFI-532: Ignition Discharge Module (IDM) Group B. Faulty Signal (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-532
    • EFI-532: Ignition discharge module (IDM) group B
  • Faulty signal
    • Notes
    • Checking connectors
    • Information
      • Fault-tracing information
• EFI-533: Ignition Discharge Module (IDM), Group C. Faulty Signal (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-533
  • Faulty signal
    • Notes
    • Checking terminal #B19
    • Information
      • Fault-tracing information
• EFI-541: Canister Purge (Cp) Valve. Signal Missing. Intermittent Fault. (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-541
    • EFI-541: Canister purge (CP) valve, signal
  • Signal missing. Intermittent fault
    • Notes
    • Checking cables and terminals
    • Information
      • Fault-tracing information
• EFI-541: Canister Purge (Cp) Valve. Signal Missing. Permanent Fault (B5234T3; B5254T; 1998)
  • Diagnostic trouble code (DTC) information EFI-541
  • Signal missing. Permanent fault
    • Notes
    • Checking power cable
    • Checking for an open-circuit
    • Checking canister purge (CP) valve
    • Checking the signal cable
    • Fault-tracing information
    • Replacing canister purge valve
    • Connecting breakout box, connector A
      • Connecting the breakout box
      • Connecting breakout box to Motronic 4.4 connector A (black)
      • Checking ground terminals
      • Checking for an open-circuit
      • Reading is OK
    • Verification
      • Verification
    • Information
      • Fault-tracing information