Timing Inspection

Set up an oscilloscope as follows:
Channel A (+): Signal terminal of the CMPS #1 (back probe), (-): ground

Channel B (+): Signal terminal of the CKPS (back probe), (-): ground
Start the engine and check for signal waveform compared with reference waveform as shown in illustration.

Fig 1: CKPS Signal Waveform Screen (Including Missing Tooth)
Courtesy of KIA MOTORS AMERICA, INC.

Fig 2: CKPS Signal Waveform Screen (Switching Point Of CMPS And Missing Tooth)
Courtesy of KIA MOTORS AMERICA, INC.

(1) There are 60 signals of CKPS (Including missing tooth) during the semi-cycle of CMPS #1.

(2) There are 3~5 signals of CKPS between the switching point of CMPS #1 and the missing tooth of CKPS.
Is the signal waveform normal?
YES
- Go to next step as below.
NO
- Repair or readjust as necessary, if air gap of the CKPS is exceeds specification [0.3~1.7 mm (0.012~0.067 in)]. If OK, check that the crankshaft and camshaft are correctly aligned the matching marks of the pulleys. Repair or readjust as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.