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Wiring Diagrams

Fig 1: 1979 V6 Engine C-4 System Wiring Diagram
G09354751Courtesy of GENERAL MOTORS COMPANY
Fig 2: 1980 4-Cy Under & V6 Engine C-4 System Wiring Diagram
G09354752Courtesy of GENERAL MOTORS COMPANY
Fig 3: DIAGNOSTIC CIRCUIT CHECK
G09354753Courtesy of GENERAL MOTORS COMPANY
Fig 4: SYSTEM PERFORMANCE CHECK ENGINE PERFORMANCE PROBLEM (ODOR, SURGE, FUEL ECONOMY)
G09354754Courtesy of GENERAL MOTORS COMPANY
Fig 5: CHART 1 DWELL FIXED AT 5-10 DEGREES
G09354755Courtesy of GENERAL MOTORS COMPANY
Fig 6: CHART 2 DWELL FIXED BETWEEN 10-50 DEGREES
G09354756Courtesy of GENERAL MOTORS COMPANY
Fig 7: CHART 3 DWELL FIXED BETWEEN 50-55 DEGREES
G09354757Courtesy of GENERAL MOTORS COMPANY
Fig 8: CHART 4 1979 3.8L WOT SWITCH CIRCUIT CHECK
G09354758Courtesy of GENERAL MOTORS COMPANY
Fig 9: CHART 4 1979 1/2-1980 2.5L WOT ENRICHMENT CIRCUIT CHECK
G09354759Courtesy of GENERAL MOTORS COMPANY
Fig 10: CHART 4 1980 2.8L TPS ENRICHMENT CIRCUIT CHECK
G09354760Courtesy of GENERAL MOTORS COMPANY
Fig 11: CHART 5 "CHECK ENGINE" LIGHT INOPERATIVE
G09354761Courtesy of GENERAL MOTORS COMPANY
Fig 12: CHART 6 LEAN LIMIT SWITCH CIRCUIT CHECK
G09354762Courtesy of GENERAL MOTORS COMPANY
Fig 13: CHART 7 1980 2.8L PULSE-AIR SOLENOID CHECK
G09354763Courtesy of GENERAL MOTORS COMPANY
Fig 14: CHART 12 TROUBLE CODE
G09354764Courtesy of GENERAL MOTORS COMPANY
Fig 15: CHART 13 TROUBLE CODE 13
G09354765Courtesy of GENERAL MOTORS COMPANY
Fig 16: CHART 14 TROUBLE CODE 14
G09354766Courtesy of GENERAL MOTORS COMPANY
Fig 17: CHART 15 TROUBLE CODE 15
G09354767Courtesy of GENERAL MOTORS COMPANY
Fig 18: CHART 21 1979 3.8L TROUBLE CODE 21 & 22 APPEAR AT THE SAME TIME
G09354768Courtesy of GENERAL MOTORS COMPANY
Fig 19: CHART 21 1980 2.8L TROUBLE CODE 21
G09354769Courtesy of GENERAL MOTORS COMPANY
Fig 20: CHART 21 1979 1/2-1980 2.5L TROUBLE CODE 21
G09354770Courtesy of GENERAL MOTORS COMPANY
Fig 21: CHART 22 1979 3.8L TROUBLE CODE 22
G09354771Courtesy of GENERAL MOTORS COMPANY
Fig 22: CHART 22 1979 1/2-1980 2.5L TROUBLE CODE 22
G09354772Courtesy of GENERAL MOTORS COMPANY
Fig 23: CHART 23 TROUBLE CODE 23
G09354773Courtesy of GENERAL MOTORS COMPANY
Fig 24: CHARTS 51 THROUGH 54 TROUBLE CODES 51 THROUGH 54
G09354774Courtesy of GENERAL MOTORS COMPANY
Fig 25: CHART 55 TROUBLE CODE 55
G09354775Courtesy of GENERAL MOTORS COMPANY
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