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whats the symtoms of having the tps wires round the wrong way on 4x4 tps and 2wd loom

Old 20-07-2012, 09:05 PM
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neo
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Default whats the symtoms of having the tps wires round the wrong way on 4x4 tps and 2wd loom

Hi what is the symtoms of using a 2WD loom with 4x4 TPS and L8 ECU but not swopping the pins over ??? ive had a misfire but i didnt know to swop the wires round in the TPS loom plug ...

can it cause a misfire midrange or big flat spot etc....
Old 20-07-2012, 11:23 PM
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daz1968
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Not sure about symptoms but you can check wiring with a multimeter to make sure is correct.
Old 20-07-2012, 11:28 PM
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Massive flat spot when mine was wrong! Bit of a low down the revs misfire aswell
Old 21-07-2012, 10:08 AM
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It will run badly, also the voltage won't be in the correct direction, i.e. 2WD voltage decreases with the throttle increasing, 4x4 increases.

Martin
Old 21-07-2012, 02:58 PM
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William MK2 Cosworth
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The ecu probably thinks you are off the pedal when you actually have it flat down, so mine ended up having a nice responce up to the mid way, but nothing all the way after that.

As said always a good idea to check the output of the tps (middle wire) to see if it is correct for your ecu.
Old 21-07-2012, 03:26 PM
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Overfuelling lower down, cutting out, generally shit to drive till around 1/2 throttle where the signals would be the same which ever way it was wired.
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