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Q45 Throttle Body Wire Up

ax53b70p25

By ax53b70p25,
in Engines & Forced Induction

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The Nissan TPS uses two 3 wire connectors on it. One is on a short section of harness about 6 inches long and handles the actual throttle position signal and the other made to the body of the sensor is for the idle validation circuit which you also need or you get a code (51 I believe). With the sensor standing up, with the mounting tabs on the right side and the TPS wiring harness coming out of the bottom while your looking at it the top 2 pins in the connector made in the sensor body are your idle validation pins so disregard the bottom pin. Your TPS wiring harness that comes from the bottom of the sensor will terminate at a 3 prong plug and have red, white, and black wires in it. The wires colors correspond with these functions:

Red is the 5 volt input wire

White is the TPS signal wire

Black is the sensor return wire

With the connector lock up the white wire will be in the center, the red wire should be on the left, and the black wire should be on the right. When adjusting this sensor I found the best TPS voltage was around .385 on the sensor check but this car vary from car to car. i used this on the SUPRA we built for AutObarn.

Edited by URAS
STATUS Grand Master

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cmon there must be someone who has wire up a q45 throttlebody!!! i need to know where the vacuum lines go as well HELLLLLLLP

depends on your application, i dont usually use them, the large ones are actually water lines for throttle body heating.

q4521bg.jpg

Edited by URAS
ax53b70p25 Experienced

ax53b70p25

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GREAT I WIRED IT UP LAST NIGHT!!!!!!!! AWESOME!! i instamtly felt the difference a little more laggy about .5 of a second delay, but may be due to my 3inch piping all the way from turbo. will ppost up the wire up to r33gts.

  • 4 months later...

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