Posted: Wed Mar 14, 2012 6:43 pm Post subject: Did dealer erase my overkill tune?
I just picked up my 04 SS from dealer after some warranty work. I had the gauge cluster replaced along with a new MAP sensor. Upon leaving the dealer I noticed the car felt funny. Shifting very soft, running hotter, and now a P0140 code. Did they wipe my tune when they programmed the new cluster?
I called them and my ticket writer said no way, but to check back in the morning when the tech gets in and he will ask him what he did.
I'm really worried they loaded a stock tune and I will have to get another PCM from will.
It's an extended warranty. The car went in for the cluster acting goofy. Boost gauge sticking and tach not reading correct on highway. The new cluster fixed tach problem but I guess boost gauge problem was caused by bad MAP sensor.
Went to the dealer this morning and spoke with the tech. He swears he didn't flash the PCM for the new MAP sensor, but did say he had the battery unplugged for 2 days while he was waiting for parts. Would this have cause any issues?
It will make it run different until it relearns everything. Check to make sure the front O2 is plugged in and the wires aren't screwed up.
I don't recall if the P0140 was disabled on my overkill tune, if you said it had the rear O2 removed when you ordered it then it should have been disabled.
Are your cooling fans working? It shouldn't be running that hot. It's behaving like a 180* t-stat with stock fan settings if it's running around 205*
Do you know someone with an HPT that can read your PCM? That will be the easiest way to tell. I don't think Will unlocked his PCM's for DHP so if you know anyone with a DHP and they can read it then it has been reflashed.
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