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TPS for aftermarket throttle body


Kclank

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Hi guys and gals.  I am installing an RB25DET in a S30 body.  It has the Isis style intake manifold and a generic 80 mm aftermarket throttle body.  I will be using a SDS ECU  (no MAF).  As such I am looking for ideas for a TPS sensor.  Any ideas suggestions, guidance?

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You may have to do an online search and see what people are using for that aftermarket throttle body.

Or go the old school route and take a trip to your local pull a part Junkyard, so you can try to match a sensor up. Bring some tools so you can remove the sensors from those throttle bodies. Then check for a matching Throttle shaft and mounting holes. Buy a new one if you find a match..

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I think most of the "ebay" custom throttle bodies utilize the early Q45 style TPS. Unfortunately, those are pretty expensive ($150) and i believe mine is malfunctioning. I would be interested if anyone has found another source for these.

What parts can fail?.  Electronic component, mechanical failure, short circuit?    I am poorly educated on this subject and need to research much more.

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Not sure to be perfectly honest, most likely user error. I am using a wolf v500 and while i have double/tripple checked the wiring, and i am still not seeing the response in the ecu as i would have expected. I.e. open throttle 100%, and ecu reads 75%, close throttle and ecu reads 10%. The ecu has a self learning feature to define the transfer function but i haven't had luck using that to fix the problem. 

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  • 3 weeks later...

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