TPS plug

[Nismo1182]

My friends motorset came with a cut harness so we bought a complete one separately. The throttle has a 3 wire plug and the new harness has a 6 wire plug. So 3 of the wires on the 6 wire plug matched the 3 wires plug on the throttle body from the cut harness.

I thought this would work fine. Car drives fine on stock boost and stock timing. I added a SAFC2 today and accordint to it, the ecu is not seeing a TPS signal. I double checked the wiring on the SAFC and the TPS and theyre fine.

Anyone know what the left over 3 wires on the 6 wire plug are?

Since the ECU is not seeing a TPS signal, can that cause detonation on anything above 10 psi?

[180crafter]

This happened to me....

I was told by Yuri at Srswap that the 6 prong plug is for the auto motor, to just splice in a 3 prong I had lying around. it worked just fine.

Make sure you have the SAFC hooked up correctly, and that it is properly configured. That is all I can think of that is throwin it off.

[SpeedRacer1]

Yes, a six pronged plug is from an auto engine harness. You take the black wire off the 6 plug and splice it to the black wire on the TPS. You take the white wire and splice it to the white wire. You take the red and green wires from the 6 plug and splice them together into one wire and then splice those into the green wire with red stripe off the 3 wire manaul TPS. I have it set up that way (auto engine harness and manual TPS) and the SAFC2 picks up the voltage perfectly. But whenever I use an auto ECU it ignores the TPS signal, whenever I use a manual ECU it reads the TPS singal. Odd.

[Nismo1182]

The AFC isnt picking up the signal at all.

I have the TPS wired that way also.

Will not having a TPS voltage reading cause detonation over 10 psi?

[SpeedRacer1]

No. If the ECU doesnt pick up the TPS signal, it will just ignore it and go off of information from the other sensors (MAFS, O2).

I ran 7 psi and no TPS for 2 years with no issues at all.