P1237 Diagnostic Trouble Code Discussion for July 2009
Fuel Pump Secondary Circuit Malfunction
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| Help Request | Posted | |
| 1999 Volkswagen Passat GLX 2.8L Poor Idle Quality, MIL Lamp on VIN: WVWPD63BXX P1237: Injector Cyl 1 1-N30 Open Circuit - VAG CODE 17645. Has multiple codes set. P1237-P1242 For Open Injector Circuit. Has a bit of a rough idle to it, but no misfire. Unclipped each injector one at a time, as each one is unclipped engine stumbles. Checked all wires, no corrosion ect. Also has a P0422 Main Catalyst... |
July 22, 2009 |
