Surging/stalling when accelerating. intermittent issue

[Sportsguy83]

I have seen this problem in a friends swapped car. The culprit there was that there was a cable in the ECU harness that was grounding out and making the computer go crazy. The issue would happen totally random, but I specifically remember the "dead pedal" issue when the ECU was loosing communication. Fixing the wire in the ECU harness did the trick. This might not be your issue at all, but its something to think about later on if the steps you are taking now don't fix the issue.

[scarysquash]

Hey everyone. Cleaning the throttle body didn't fix it :/


I decided to stop logging the airflow/map info since nothing seemed odd with those numbers and swapped it to log Absolute throttle position, Commanded Throttle Actuator, Relative throttle position, and accelerator pedal position D and E.


My understanding is these should all be fairly similar to each other. I noticed that around the time where the hesitation/unresponsive pedal occurs there is a dip in Acc. Pedal Position D/E. One stays steady while the other drops. See attached image.
You can see acc. pedal position D drops.



Here's a link to the datazap log if you want to see https://datazap.me/u/scarysquash/log...7-931&mark=912


any ideas? Could the pedal sensor be going bad?

[Teseo]

Update?

[smackrel]

Talk about back from the dead lol!

but yes it would be nice if @scarysquash would let us know what happened