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Home >> Chevrolet >> 1995 >> Cavalier Base, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.2L >> ECM/Pcm Code Charts >> Code 45, Rich Exhaust Indication >> EGR Problem

EGR Problem

EGR valve sticking open at idle is usually accompanied by a rough idle and/or stalling. Also check for shorted/leaking injector and fuel-contaminated oil. If code is intermittent, see INTERMITTENTS in TESTS W/O CODES (W/O OBD-II) article in this section.

CODE 45 PCM TERMINAL & CIRCUIT WIRING IDENTIFICATION

Application PCM Terminal Wire Color
O2 Signal J1-12 Purple
O2 Ground J1-06 Tan
Fig 1: Code 45 Schematic (2.2L) Rich Exhaust Indication
G91H07378
Fig 2: Code 45 Diagnostic Flow Chart (2.2L) Rich Exhaust Indication
G91A07351
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