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P0507 Idle Air Control at Stop - Above Limit
Possible cause of fault:
- Leaks in intake air system
- Leaks in crankcase ventilation
- Throttle adjusting unit faulty
P0441 Fuel tank ventilation system above limit value/below limit value
Possible cause of fault
- Tank vent faulty (remains stuck in an open or closed position)
- Tank vent installed the wrong way round
- Leak in scavenging lines between tank vent and positive crankcase ventilation (in the Turbo via a T-piece also on the intake side of the turbocharger)
- Scavenging lines between tank vent and positive crankcase ventilation trapped or blocked (in the Turbo via a T-piece also on the intake side of the turbocharger)
Yes, they could be related - fix the P0441 first then clear the codes and the P-507 will likely go away.
Also, I removed the duplicate post on this same topic.
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Hi Loren, thanks for condensing my post

I've purchased and in the process of replacing the Purge Valve for Fuel Vapor Canister part 948-110-202-01

Since I'm experiencing longer the normal crank time as well as issues not starting up after gas fill, the Purge Valve was suggested to be replaced.

So I guess start there and see if that hopefully resolves the P0507 (it "should" at least take care of P0441)

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So I can officially say I replaced the Purge Valve for Fuel Vapor Canister part 948-110-202-01. Total PIA (IMHO) and hope to never have to do that one again.

So when firing up after replacement, got a PSM Failure Workshop message on dash along with the Yellow Hazard Sign with the (!)

Scanned codes, old DTC P0441 showed up (of course) and NEW "pending" DTC P2138

I turned off engine and restarted, PSM error and hazard light went away, rescanned and NO pending Codes now!. Went ahead and cleared the original DTC P0441 and gave it a drive around the city.

so far so good.. Ugh!

FYI - DTC P2138 Throttle/Pedal Position Sensor/Switch "D" / "E" Voltage Correlation


Diagnostic conditions

  • Engine running

Possible cause of fault

  • Short circuit to B+ in wiring harness
  • Short circuit to ground in wiring harness
  • Open circuit in wiring harness
  • Throttle adjusting unit (position sensor 1 or 2) faulty
  • DME control module faulty

NOTE: This fault is always recorded along with another throttle fault.

Edited by srfrdrew
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