TPS reads 100% at all times
06-25-2018, 05:49 PM
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TPS reads 100% at all times Hello Everyone,
I am ironing out the kinks on a 370 H/C/I swap. Vehicle has 102mm TB and stock harness. I am getting a P0123 code and HPTuners is showing the TPS at 100% with engine off/key on and at idle. Increasing the throttle shows no decrease/change in voltage. I replaced the TPS and did a TPS relearn with no success. I pulled the TPS off and can manually rotate it, causing the voltage to move up and down normally. The only thing I notice on the TB is that it seems like the throttle blade "notch" is out of clock compared to what is needed for the sensor.
Is there another TPS I can use from a different make/model that may have a different orientation for the notch or something I can adjust in HPTuners? Any insight is greatly appreciated.
Madellous
I am ironing out the kinks on a 370 H/C/I swap. Vehicle has 102mm TB and stock harness. I am getting a P0123 code and HPTuners is showing the TPS at 100% with engine off/key on and at idle. Increasing the throttle shows no decrease/change in voltage. I replaced the TPS and did a TPS relearn with no success. I pulled the TPS off and can manually rotate it, causing the voltage to move up and down normally. The only thing I notice on the TB is that it seems like the throttle blade "notch" is out of clock compared to what is needed for the sensor.
Is there another TPS I can use from a different make/model that may have a different orientation for the notch or something I can adjust in HPTuners? Any insight is greatly appreciated.
Madellous
Last edited by Madellous; 06-26-2018 at 07:17 AM. Reason: Title change
06-26-2018, 11:57 AM
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06-26-2018, 12:05 PM
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You might have to get a different TB.
06-26-2018, 05:38 PM
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The readings do change.
I ended up having to clock the TPS manually by taking a dremel to a few of the plastic parts. I am able get it it at .45V at idle now but it is only going to 3.2V and 80% throttle. That's another issue I can tackle later, this is a temporary fix until I can get a throttle body with the proper clock.
I ended up having to clock the TPS manually by taking a dremel to a few of the plastic parts. I am able get it it at .45V at idle now but it is only going to 3.2V and 80% throttle. That's another issue I can tackle later, this is a temporary fix until I can get a throttle body with the proper clock.
