P1639 Diagnostic Trouble Code Discussion for July 2012
5-Volt Reference 'B' Circuit Malfunction
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| Help Request | Posted | |
| 1999 Volkswagen Jetta GLX 2.8L Surge, Cuts out VIN: 3VWTE29M2X P1639: t p.s range performance. customer compains of no power and stalls and runs rough. scan codes and diffenent codes appear every time. these codes seem to come back everytime..checked fuel pump relay circuit. seems o.k. but having a hard time reading schematics to find what voltage shoul... |
July 06, 2012 | |
| 1999 Volkswagen Jetta GLX 2.8L Surge, Cuts out VIN: 3VWTE29M2X P1639: t p.s range performance. customer compains of no power and stalls and runs rough. scan codes and diffenent codes appear every time. these codes seem to come back everytime..checked fuel pump relay circuit. seems o.k. but having a hard time reading schematics to find what voltage shoul... |
July 10, 2012 |
