need help on how to test TPS on Sohc Ka24e

[blues14]

Ok, so i see the black box that is mounted with 2 screws and has three wires coming out of the top and 3 wires on the side facing the front of the car. This is the tps right? I have an electro tek digital voltmeter that i just bought to test the tps and i need to know what setting to use and what wire to test. I have keep the black wire off the voltmeter on battery ground right? next i should select 2 or 20 on the DC V selector. Now where do i place the red wire into the tps? and i am looking for .4 at idle right? will messing with the tps require me to re adjust my idle? Sorry for all the questions, but i have to get this car running right.

[blues14]

ok, i tried testing it how i thought it should be tested and got a reading of 9.14v at idle!!! So is it that far off or am i totally not testing it right? I had black wire to battery negative and red wire on the middle yellow wire on the connecter facing the front of the car.

[NISTECH]

you want to test the pig tail connector off the TPS. not the connector on the TPS.

[blues14]

are you talking about the connecter thats actually hanging underneath the tps? or the connector that attaches to the tps?

[blues14]

alright!! i got it reading at .411 at closed throttle. Is this the proper reading for the '89-92 rb20det engine as well? I just measured my RB20det in my s14 and it read at .51 closed and 4.19 ant WOT. Should it be adjusted to .40 as well?

[NISTECH]

.45 to .50v is pretty much what all nissans sit at.