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Symptom/Test Menu

DIAGNOSIS BY SYMPTOM (SYMPTOM-TO-CIRCUIT TEST MENU)

Symptom Go To: Circuit Test No. (Step No.)
Runs Rough, Misses, Stalls, Lacks Power, Rough Idle, Surges D19  (2)
Stalls At Idle Or During Self-Test D19  (1)
Stalls When Parking (OHC EFI only) B15  (3)
Surges With A/C On At Idle (OHC EFI & HSC EFI only) B7  (16)
A/C Stays On During WOT D7  (11)
A/C Not Functioning D7  (11)
A/C Compressor Always Runs (OHC EFI only) D7  (1)
High Idle Speed After Restart. May Have Spark Knock For 3-5 Minutes After Restart (Turbo EFI only) B7  (1)
Low Idle With A/C On B13  (10)
High Idle In "Drive" A/T Trans Only N/A
Shift Indicator Light Always/Never On (HSC EFI only) D6  (1)
"CHECK ENGINE" Light Always On D11  (1)
"CHECK ENGINE" Light Never On D11  (2)
"CHECK ENGINE" Light On Intermittently D11  (5)
"CHECK ENGINE" Light Flashes With Erratic Idle D11  (6)
No Cruise Control And Stalls On Decel. N/A
Stumble After Hot Restart C1  (19)
Engine Will Not Restart N/A
Fuel Pump Runs With Engine Off (OHC EFI & Turbo EFI only) C2  (14)
Gasoline Fumes In Engine Compartment (Turbo EFI & HSC EFI only) D4  (1)
Detonation/Spark Knock (OHC EFI) B7  (1)
Detonation/Spark Knock (Turbo EFI) B7  (2)
Engine Cooling Fan(s) Inoperative N/A
Cooling Fan(s) Always On N/A
Fig 1: Service Code Definitions - 2.3L OHC MPFI
G112605
Fig 2: Service Code Definitions - 2.3L HSC MPFI
G112606
Fig 3: Service Code Definitions - 2.3L TC MPFI
G112607