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Incorrect TPS %?
I am trying to dial in (with some help) my 2018 Camaro SS 1LE. Mods on the car are a flex fuel kit, e80 mix in the tank currently, a ported throttle body (based off a stock LT1 unit), and a ported factory LT1 intake manifold. I am trying to fix a problem with my throttle position sensor, or at least, what the sensor is reporting. When I go full throttle, the TPS will only show a maximum of 39.2% (channel 2111). The car does not feel slow or feel like the TB is being limited. The torque tables have all been raised to compensate for the modifications, as well as the Driver Demand Map A and the Peak Torque table, so the torque tables are not being exceeded and the throttle not being limited because of it. The torque outputs all show that the car is making power. If I turn the ignition on (engine off) and move the throttle blade by hand, the maximum % that the TPS shows when the throttle body is wide open is 40%, so I believe that the throttle is opening all the way as commanded by the accelerator, but the sensor is returning the wrong value, or the scanner is not interpreting the data correctly. If I push the throttle all the way closed by hand, the TPS will show 0%. It will sit at about 11% with no input from me. I don't have any drive-ability issues at part or full throttle, in fact, its very smooth and predictable. Could anyone shed some light on what may be wrong? I've attached the log of me opening the throttle by hand (.hpl files are not allowed here, so change the .txt to .hpl), and can provide the current tune on the car if needed.
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'18 1SS 1LE - "Mongoose"
'15 Malibu 2LT - daily
Last edited by Z0Tex; 11-01-2019 at 09:09 AM.
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