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2004 Pontiac Bonneville SLE 3.8L MIL Lamp on
Posted to GM Driveability on 4/12/2011 12 Replies

Sets p0401 EGR flow on a drive cycle. enging is supercharged and tried a good EGR valve, MAP sensor and tried latest programing. Flow is good thru valve and can be controlled correctly by Tech 2. Positions look correct also. Strange

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  Related Documents & Media  2004 Pontiac Bonneville SLE

 
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car Vehicle Data

2004 Pontiac Bonneville SLE

VIN 1G2HZ54143
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursCruise

Trouble Codes

P0401EGR System Insufficient Flow Detected
Message Closed

car Vehicle Data

2004 Pontiac Bonneville SLE

VIN 1G2HZ54143
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursCruise

Trouble Codes

P0401EGR System Insufficient Flow Detected