
2000 Pontiac Sunfire GT 2.4L Poor Idle Quality, Misfire, MIL Lamp on
This car has a poor idle problem. Codes p0300 (random misfire) and p0420 (cat efficiency) were in memory. both happened at idle, p0420 in park and p0300 in 2nd gear. both no vehicle speed - freeze frame does supply temp reading. When the tranny is in park it s...
FIX posted 2/13/2009
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Message Closed w/FIX
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VIN | 3G2JD12T3Y |
Engine | 2.4 L / 4 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
Occurs | Idle |
Trouble Codes
P0300 | Multiple Misfire Detected |
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
2000 Pontiac Sunfire GT
VIN | 3G2JD12T3Y |
Engine | 2.4 L / 4 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
Occurs | Idle |
Trouble Codes
P0300 | Multiple Misfire Detected |
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |