Throttle Position Sensor Question..

[dubbs693]

I was getting crazy readings from my TPS along with a slight hesitation on my 91 240sx..

So I bought another tps and it seemed simple enough, took out the intake, took out the tps bolts and disconnect all the vacuum lines in the way.. I go to slide it off the throttle body and I can't because more **** is in the way.. Anyone with experience can you tell me how you took it off? I don't want to be taking off **** I don't need to..

thanks for the help!

[AZhitman]

Pull the TB off. You need to clean it anyway.

[dubbs693]

Thanks, I was afraid of that..

[sideways24d]

Make sure you wash the throttle body with soap and water real well on the edges and the back of the throttle plate. To start i used brake cleaner, wiped it down, then used soap and water. I only sprayed the cleaner once though. With the intake off I would clean the MAF if you havent yet with denatured alchohol.

[dubbs693]

I cleaned everything up and re-installed the new one, When I measure the male end coming out of the tps I don't get any volt readings, The female end puts out about 4.8 or so..



Edit - this is the manual tps, no connector on the tps itself..

[dubbs693]

I figured it out, got it reading -.48 V and the resistance is now within spec..

I still have a slight hesitation problem and a bit of a lumpy idle.. Kinda lost as to what else it could be.

[180fan]

checked the timing yet?