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Old 10-11-2019, 08:23   #1
djmisio85
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Symptoms of bad TPS?

Iím trying to diagnose an issue on my 5 GSR. It bogs on a cold engine when pulling away in first, in general has bad response and is slow in the lower revs, and has a jerky throttle when feathering it during normal driving.

I recently put a very low mileage throttle body and tps on my car. Prior to this my AYC system was saying I had a short in the TPS, but now with the new throttle the error code is gone. I have heard that a TPS when installed need setting up (at the dealers?)


Would a badly set up TPS cause these kind of issues? She runs fine in the higher revs.
Would an unconfigured TPS cause an engine light? (Which I donít have).

Any input appreciated.thanks


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Old 10-11-2019, 08:50   #2
p4ckm4n
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Hi,

My 5 recently was suffering from similar issues... when driving the car at a steady pace at around 2000rpm the throttle would suddenly dip and then come back on again as if I was taking my foot of the throttle and back on again but was fine below or above that rev range and going up through the gears... turned out to be tps, as far as I know yes they need setting up? Maybe someone could clarify that?


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Old 10-11-2019, 10:14   #3
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Will hopefully find out on Saturday as the evo specialist I have taken the car to doesnít have MUT tools for the earlier evos, so will take it to mitsu and fingers crossed they can sort the issue


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Old 10-11-2019, 10:52   #4
TrickyDick
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Setup is just settingg the zero point. This can be done with a voltmeter and the values required are in the manual. You could also see if the TPS is working smoothly with a voltmeter.
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Old 10-11-2019, 11:47   #5
djmisio85
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Quote:
Originally Posted by TrickyDick View Post
Setup is just settingg the zero point. This can be done with a voltmeter and the values required are in the manual. You could also see if the TPS is working smoothly with a voltmeter.


Iíve read about this method, but if anything, electrics is my weak point. Although I do have a multimeter. Is there some kind of guide for idiots on how to do it?


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Old 10-11-2019, 18:13   #6
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This is procedure - if you join forum you will have access to lots of technical detail and the manuals from which this is copied - hope you are able to figure it out - good luck

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Old 10-11-2019, 21:28   #7
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Where can you get the test harness from.
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Old 11-11-2019, 10:16   #8
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You can just connect to wires going into TPS, eg using a pin to pierce insulation, so harness not necessary.
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Old 11-11-2019, 20:53   #9
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Cheers mate
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