Ok, I have been having trouble with my car hesitating and cutting out at random RPM's. After looking in the FSM and reading on here I started thinking that the TPS is causing this. The car had been sitting for a few days so needless to say it was cold. I know I am supposed to check the resistances with the car warmed up, but I checked them cold anyway. Just to see if it was really bad. Anyway, I started the car(fired right up). Then just started driving around the neighborhood(didn't want to get to far away). Shortly after the car gets up to temp. it starts the hesitations again. So I coax the car back home and run in and get my multimeter. When I went to check the resistance values both full and narrow range sensors were showing 0.00 ohms. Even when I moved the throttle the values never changed. At this point I went and grabbed a beer and thought about it some more. About a half an hour later I went back to check the resistance values again and they were exactly as I had set them per the FSM. Is this odd or have I just found my problem? Anybody ever experienced this?

 

Which wires are you probing?
They should be green and black?

Did you unplug the TPS from the rest of the wiring harness?
You need to unplug them before you read resistance correctly.


-Ted

 

Iaw Fsm.

 

???

And what part of Ted's reply did you not understand that you had to bump your thread. You bump has been deleted. Bumps are not allowed here. Please read the rules before posting thread at the top of this section.

 

IAW ="In accordance with" and FSM= "factory service manual". And when I posted IAW FSM and said what I said, that was not a bump. It was a reply to Ted's post asking how I checked the TPS. So thanks for the help Icemark.

 

Wow, that's a new acronym I've never seen before.
Are you a lawyer or something?

Hmmm...I don't think the FSM specs in ohms / resistance?
I thought it only showed the two-lights method or voltage?


-Ted

 

That acronym is used alot in aircraft maintenance, sorry if it was over your head. If you check on page F1-83 in the fuel and emissions control chapter in the FSM it says to check the resistance values. I don't have the check light that manual calls out for, so I tried to put it within those resistance values the best I could. I WAS getting funny readings....that is why I asked the question in the first place. Thanks again.

 

if it is set correctly at the ohms, sweep the sensor slowly and watch for any opens or spikes in the reading indicating a faulty sensor, it should go up to about 5k ohms.

 

Thanks for the response. But that is what I did. The thing is, it had zero(0.00) ohms not an open but zero ohms after it had warmed up, in all positions closed throttle in transient and WOT. Then after it cooled down it was right back to where it was at before I took it for the test drive. But now I can't can't get the car to start. I think either the TPS is shot or just way out of adjustment. Does anybody have a link to how to set it with a voltmeter?

 

if you are following the FSM and it reads 0 ohms then the TPS is faulty. doesn't matter which way you hook up the voltmeter it should still show the same reading.