P0641 Diagnostic Trouble Code Discussion for October 2017
5-Volt Reference 1 Circuit Malfunction
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| Help Request | Posted | |
| 2007 Pontiac Grand Prix 3.8L MIL Lamp on VIN: 2G2WP55287 P0641: 5-Volt Reference 1 Circuit Malfunction. Got another mess from a body shop here. Got called into look at codes p0452 and po641. Could not get to fuel pressure sensor so started testing at pass through connector in trunk. Scanner was showing 0.00 volts on pressor sensor single. Code sets if pcm see le... |
October 22, 2017 | |
| 2007 Pontiac Grand Prix 3.8L MIL Lamp on VIN: 2G2WP55287 P0641: 5-Volt Reference 1 Circuit Malfunction. ... Got called into look at codes p0452 and po641. Could not get to fuel pressure sensor so started testing at pass through connector in trunk. Scanner was showing 0.00 volts on pressor sensor single. Code sets if pcm see less than .01 volts for more than 10se... |
October 22, 2017 | |
| 2007 Pontiac Grand Prix 3.8L MIL Lamp on VIN: 2G2WP55287 P0641: 5-Volt Reference 1 Circuit Malfunction. Got another mess from a body shop here. Got called into look at codes p0452 and po641. Could not get to fuel pressure sensor so started testing at pass through connector in trunk. Scanner was showing 0.00 volts on pressor sensor single. Code sets if pcm see le... |
October 22, 2017 |
