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International Automotive Technicians Network
2001 Oldsmobile Alero GL 2.4L Poor Idle Quality
Posted to GM Driveability on 10/30/2009 4 Replies

This car came in for a leaking fuel press. regulator. We also noticed that idle was high so customer said to go ahead and fix. Have replaced IAC motor, new motor actually made idle increase even more. Check tps with scope, normal. Checked for vaccume leak, non...

4 Replies Received (View Replies)

  Related Documents & Media  2001 Oldsmobile Alero GL

 
Message Closed w/Summary

car Vehicle Data

2001 Oldsmobile Alero GL

VIN 1G3NL52T31
Engine2.4 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursAlways

Trouble Codes

P0122Throttle Position Sensor Circuit Low Voltage
P0420Catalyst Efficiency Below Threshold (Bank 1)
P0440EVAP System Leak Detected
P0530Air Conditioning Pressure Sensor Plausibility
Message Closed w/Summary

car Vehicle Data

2001 Oldsmobile Alero GL

VIN 1G3NL52T31
Engine2.4 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursAlways

Trouble Codes

P0122Throttle Position Sensor Circuit Low Voltage
P0420Catalyst Efficiency Below Threshold (Bank 1)
P0440EVAP System Leak Detected
P0530Air Conditioning Pressure Sensor Plausibility