P0400 Diagnostic Trouble Code Discussion for June 2012
Exhaust Gas Recirculation System Flow Malfunction
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| Help Request | Posted | |
| 1998 Mercedes-Benz E320 3.2L MIL Lamp on VIN: WDBJF65F1W P0400: EGR Malfunction. Good morning, I'm trying to find what ground signal or what is normal for the rear heater circuit on this vehicle. I have my voltage going to O2's, and the computer is grounding the O2's for 100ms, 1 time every second. For the 100ms the rear heaters are on the... |
June 27, 2012 |
