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1991 Chevrolet Lumina 3.1L Poor Idle Quality, Surge, MIL Lamp on, idles very high
Posted to GM Driveability on 6/13/2005 8 Replies

Original readings from start up. vehicle will not start and run on its own until coolant temp reaches 138 degrees initailly at times other times starts and runs with cts lower.

RPM 1450 O2 cycling 170 to 757 mv tps(v) .60 IAC pos 0 Base PW (ms) 1.5 a/f ratio ...

8 Replies Received (View Replies)

  Related Documents & Media  1991 Chevrolet Lumina

 
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet Lumina

VIN 2G1WN51TXM
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / mpfi
EmissionsOBD1
SymptomsPoor Idle Quality, Surge, MIL Lamp on, Idles Very High
OccursCold, Hot

Trouble Codes

35IAC problem
44Lean exhaust
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet Lumina

VIN 2G1WN51TXM
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / mpfi
EmissionsOBD1
SymptomsPoor Idle Quality, Surge, MIL Lamp on, Idles Very High
OccursCold, Hot

Trouble Codes

35IAC problem
44Lean exhaust