Hello,
In need of some assistance here on a problem I cannot seem to find a good search result for online.
Symptoms: From 1/4 to 3/4 throttle and inconsistently based on the current RPM's / Gear my car is stuttering / losing almost all power. This happens at all speeds, is particularly apparent on acceleration. Thought it was the TPS, then found out I have a Drive by wire throttle body.... It has only happened once from a stop that when I was accelerating I gave it gas and the car basically just idled and didn't go anywhere till I pumped the throttle or got it above the 3/4 throttle mark. Power under all other conditions except for when this happens feels appropriate, it idles fine and runs great for all other intents and purposes - burns about a quart of oil between changes and the engine has just hit 100k.
What I have done thus far: Originally thought it was the tranny because of how it felt on shifting - tranny shop of course agreed and thank GOD it was under warranty and the warranty company never came out to inspect the transmission - they rebuilt it - which did nothing to alleviate the symptoms. I am throwing a code for the O2 sensor, it doesn't code for anything else other than the ABS which is also thanks to the stinking tranny shop not feeding the wires for the wheel speed sensor correctly.... (They also left a control arm completely unattached... and now the front end of my car makes horrible clunking sounds when going over bumps even though I reattached it - that will be for another thread in the future I suppose.) I bought a used throttle body on ebay since you can't just buy that control module that is attached to the throttle body. The problem MAY be a tiny bit worse with the other throttle body on now but the difference is very small.
My next steps are to go to a pick a part and get another throttle body as everything I have researched says this is a TPS issue... and apparently that is a part of the whole throttle body system.
Any and all help is MUCH appreciated!
Thank you.