Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Surging/stalling when accelerating. intermittent issue

scarysquash · 06-15-2020, 04:08 PM

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?

06-15-2020, 04:08 PM	#16
scarysquash Junior Member Join Date: Jan 2020 Drives: 2015 FRS(auto) Location: arizona Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	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?