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1989 Chevrolet Cavalier 2.0L Poor Fuel Economy, MIL Lamp on
Posted to GM Driveability on 4/5/2004 6 Replies

when cold start up on a cool morning, engine loads up with too much fuel. after it goes to closed loop the check engine light comes on with code 45. So this tells me the oxygen sensor is doing its job. Is it possible that the coolant sensor is out of range? I ...

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  Related Documents & Media  1989 Chevrolet Cavalier

 
Message Closed w/FIX

car Vehicle Data

1989 Chevrolet Cavalier

VIN 1G1JC1117K
Engine2.0 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI / tbi
SymptomsPoor Fuel Economy, MIL Lamp On
OccursCold, Hot

Trouble Codes

45rich exhaust
Message Closed w/FIX

car Vehicle Data

1989 Chevrolet Cavalier

VIN 1G1JC1117K
Engine2.0 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI / tbi
SymptomsPoor Fuel Economy, MIL Lamp On
OccursCold, Hot

Trouble Codes

45rich exhaust