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1991 Volvo 240 2.3L Hesitation, Lean
Posted to European Driveability on 11/29/2011 13 Replies

Car came in as hard no start. Diagnosed as bad ECU-not grounding fuel pump relay or injectors. Customer obtained used ECU. Car starts but runs too lean. 02 Sensor voltage worthless as I believe sensor is bad. It runs just as bad with sensor plugged in or unplu...

13 Replies Received (View Replies)

  Related Documents & Media  1991 Volvo 240

 
Message Closed w/FIX

car Vehicle Data

1991 Volvo 240

VIN YV1AA8856M
Engine2.3 L / 4 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection / SEFI
EmissionsFederal
SymptomsHesitation, Lean
OccursAlways
Message Closed w/FIX

car Vehicle Data

1991 Volvo 240

VIN YV1AA8856M
Engine2.3 L / 4 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection / SEFI
EmissionsFederal
SymptomsHesitation, Lean
OccursAlways