E46Fanatics - View Single Post - buying a used HPF M3
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Old 01-03-2013, 03:13 PM   #643
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Join Date: Nov 2011
Location: British Columbia, Canada eh
Posts: 1,456
My Ride: Turbo M3 7168 27PSI
Originally Posted by InDiGlOM3 View Post
Whats crazy is all three tps sensors are new. He had a big thread on this in the paat. Throttle body, throttle motor and pedal sensors were all changed 6 months before he started trying to sell his car.

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The car came with two sensors so I think he was trying to fix the same problem. The thing I noticed was the TPS sensors that were in the car had different numbers and the BMW serial numbers and emblem etched off. So not sure if they were bought used or not. This could not have been solved unless the AEM was tweaked to filter out the signal noise which was messing aground with fuel map throttle percent and rpm map. The signal would make the map jump all over causing low and inconsistent afr particularly below 25% throttle. The AEM map is setup with a very high throttle resolution below 25% so any fluctuation in signal voltage effects the fuel map. I wish he had been up front like have said before I would have worked with him with that knowledge.
"Horsepower is how fast you hit the wall. Torque is how far you go through it."

Last edited by being3; 01-03-2013 at 03:27 PM.
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