1999 Pontiac Grand Am SE 2.4L Poor Idle Quality, Misfire, MIL Lamp on
It has new plugs, plug boots two new computers, coil cover fuel injection cleaning,fuel filter and extra 02 sensor ground at pin 21 of computer. pulled injectors out. and watched spray pattern out of car while cranking all looks good. this is a non egr engine....
FIX posted 11/21/2006
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Message Closed w/FIX
Vehicle Data1999 Pontiac Grand Am SE
Trouble Codes
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Message Closed w/FIX
Vehicle Data
1999 Pontiac Grand Am SE
VIN | 1G2NE52T4X |
Engine | 2.4 L / 4 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / sefi |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
Occurs | Always, Idle |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |