Hi All,
I tuned a AUDM ITR a while ago, nearly a year now. Now all of a sudden there is 2 issues, being;
- engine light flashes randomly when accelerating.
- at high speed, VTEC drops in and out, sometimes engine stalls completely!
When driving normally, accelerate, say, 30%TP, 55% TP, 100%TP, whatever TP you choose, the engine light will come on, stay on, possibly until redline(yes VTEC works), it may come on, go off, VTEC cross, back on, back off, or stay on for a while.
So what I did, I hooked up my PC, went for a drive and watched the sensors while we drove, the ECU detected NO codes while driving or anything. I disabled everything, knock, ELD, injector test, alt control, and tried again, no difference, I turned off closed loop, no difference.
I find it strange how it's come out of the blue, any ideas why this may be the case? It doesn't seem to affect VTEC or fuel economy, NOR power. It doesn't splutter around, it seems to drive normal but the light just flashes.
Would this even be an ECU problem? As the tuner, it came straight to me. It may very well be a short behind the cluster...
Next issue,
4th/5th gear VTEC the VTEC will drop in and out, not mid corner, just on the straight. Oil level is fine, oil pressure is fine (gauges to confirm) - once again, no codes when this happens. Sometimes the engine will even turn itself off at high speed.
Thanks in advance guys,
Chris