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Old 07-06-2007, 23:25   #5 (permalink)
backlash1
fordmech
 
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Join Date: Jun 2007
Location: NSW Australia
Age: 37
Posts: 306
Re: Problem with my fiesta mk4 (stalls and nearly stalls etc)

Hi guys
For 1.3L Engines, there's a 16 pin wiring connector that develops high resistance and corrupts this signal before it gets to the PCM. The main thing this causes is the rpm will be erratic during gearchanges (ie: stay high, stall, etc). No dtcs will be logged because as far as the PCM is concerned that's the way you're driving your car. There's a simple by-pass we used to do that fixes this problem for good IF you can confirm that the signal coming out of your TPS is good. Let me know if you're interested and I'll post it for you. Cheers
marc
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