dgp
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Thanks Skylarking, an interesting video.
Unfortunately my issue remains, my engine idle is hanging up and fluctuating between approximately 1,000rpm and 1,800rpm when I shift into neutral (M6) while coasting down from any speed until I come to a complete stop, then the idle settles back to normal quite quickly (650rpm).
This issue began after I cleaned my K&N filter and wiped out the throttle body with a clean rag and throttle body cleaner.
I have tried the idle relearn procedure several times, and a couple of variations.
Idle car for 3 minutes
Turn off for 1 minute
Idle car for 3 minutes then drive
Idle car for 10 minutes, A/C on
Leave car on, idle car for a further 10 minutes, A/C off
Turn car off for a few minutes then restart and drive.
I have also tried driving above 70km/h with multiple deceleration events, coming to a complete stop and waiting for the idle to settle, waiting 3 minutes before moving off again (both with engine still going and engine off for several minutes then restarting and driving off)
A little stumped right now.
I also checked my injectors (when I did the filter change) for the correct Ohm reading (12.5-12.7).
Possibilities could be
- I have damaged an O ring on an injector when I unplugged them creating an unmetered air leak
- I put too much oil on the filter causing the MAF to read incorrectly (doubtful I think)
- I have damaged the TB blade mechanism or the Air Intake Sensor in the TB
Next step right now
- drop another tune in and see if that makes any difference
- disconnect battery for 30 minutes to see if the PCM forgets the idle setting completely and start the relearn again
- pull out the MAF and intake again to see if there is anything obvious that is out of place.
Happy to take other thoughts if anyone has also experienced this issue.
Unfortunately my issue remains, my engine idle is hanging up and fluctuating between approximately 1,000rpm and 1,800rpm when I shift into neutral (M6) while coasting down from any speed until I come to a complete stop, then the idle settles back to normal quite quickly (650rpm).
This issue began after I cleaned my K&N filter and wiped out the throttle body with a clean rag and throttle body cleaner.
I have tried the idle relearn procedure several times, and a couple of variations.
Idle car for 3 minutes
Turn off for 1 minute
Idle car for 3 minutes then drive
Idle car for 10 minutes, A/C on
Leave car on, idle car for a further 10 minutes, A/C off
Turn car off for a few minutes then restart and drive.
I have also tried driving above 70km/h with multiple deceleration events, coming to a complete stop and waiting for the idle to settle, waiting 3 minutes before moving off again (both with engine still going and engine off for several minutes then restarting and driving off)
A little stumped right now.
I also checked my injectors (when I did the filter change) for the correct Ohm reading (12.5-12.7).
Possibilities could be
- I have damaged an O ring on an injector when I unplugged them creating an unmetered air leak
- I put too much oil on the filter causing the MAF to read incorrectly (doubtful I think)
- I have damaged the TB blade mechanism or the Air Intake Sensor in the TB
Next step right now
- drop another tune in and see if that makes any difference
- disconnect battery for 30 minutes to see if the PCM forgets the idle setting completely and start the relearn again
- pull out the MAF and intake again to see if there is anything obvious that is out of place.
Happy to take other thoughts if anyone has also experienced this issue.