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1990 Pontiac Grand Prix LE 3.1L Poor Idle Quality, Hesitation, Surge, MIL Lamp on
This car doesn't run right, hesitates and stalls, idles rough. The TPS and MAP sensors reference voltage are both 1.7 volts. They both use the same wire from the computer terminal C-12 which should be 5 volts. I've cut the wire at C-12 and voltage is still...
FIX posted 2/1/1999
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Message Closed w/FIX
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Related Documents & Media | VIN | 1G2WJ14T3L |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / EFI |
| Emissions | US Fed emissions |
| Symptoms | Poor Idle Quality, Hesitation, Surge, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 34 | MAP Sensor Voltage Low |
Message Closed w/FIX
Vehicle Data
1990 Pontiac Grand Prix LE
| VIN | 1G2WJ14T3L |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / EFI |
| Emissions | US Fed emissions |
| Symptoms | Poor Idle Quality, Hesitation, Surge, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 34 | MAP Sensor Voltage Low |
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