
2004 Chevrolet Express 3500 6.0L Poor Idle Quality, MIL Lamp on
van will sometimes idle low or stall at idle, usually in gear. I can not control the iac with scanner but I can control it with a separate controller hook up to the iac. has anyone run into this problem and can tell me if it's a wiring problem or something els...
FIX posted 4/22/2009
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Message Closed w/FIX
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VIN | 1GBJG31U54 |
Engine | 6.0 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / mpfi |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, MIL Lamp On |
Occurs | Always |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |
P0506 | Idle Speed Control System Lower Than Expected |
Message Closed w/FIX
Vehicle Data
2004 Chevrolet Express 3500
VIN | 1GBJG31U54 |
Engine | 6.0 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / mpfi |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, MIL Lamp On |
Occurs | Always |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |
P0506 | Idle Speed Control System Lower Than Expected |