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2001 Cadillac DeVille 4.6L Poor Idle Quality, Misfire, MIL Lamp on
Posted to GM Driveability on 6/12/2008 7 Replies

Hello Everyone,

I have this cadillac deville with a 4.6 and it came in with a check engine light on. I did some testing and came to determine the crank sensors were faulty. replaced them and still have the same problem. About a week a go i replaced the spark ...

7 Replies Received (View Replies)

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Message Closed w/FIX

car Vehicle Data

2001 Cadillac DeVille

VIN 1G5KD54Y11
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

P0164Throttle Position Sensor 1 Circuit / Open
P0171Fuel System Too Lean (Bank 1)
P0300Multiple Misfire Detected
P0335Crankshaft Position Sensor 1 Circuit Malfunction (No Signal)
Message Closed w/FIX

car Vehicle Data

2001 Cadillac DeVille

VIN 1G5KD54Y11
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

P0164Throttle Position Sensor 1 Circuit / Open
P0171Fuel System Too Lean (Bank 1)
P0300Multiple Misfire Detected
P0335Crankshaft Position Sensor 1 Circuit Malfunction (No Signal)