SN95Cruiser

Ok, I am sure this has been answered however I cannot find out how to adjust the TPS. I have loosened the screws however the TPS doesnt seem to move up and down like its supposed to. I currently have a voltage of 1.4 and the only way I achieve .98 if with 1 screw completely out. Could this mean a bad TPS? Or is there something else I have to do? I have also bored out the screw holes for a little more play however I am still way off. Thanks.

dillon1340

If you have elongated the holes and still cannot get it to .8 then you need a new TP sensor.

SN95Cruiser

Great, Ill pick up a new one today. thanks

2 kwik

next mod get a professional products throttlebody as it's tps is adjustable

vristang

Most likely you have your idle adjusted way high. Disconnect the ISC and set the idle by turning the idle set screw as low as you can (while keeping the motor running at idle - even if it is a rough idle).

Hook the ISC back up and then check the TPS.

You should be able to get the TPS between .65V and 1.1V. (IIRC)

According to the Ford documentation this is the only requirement.

The ideal of .99v seems to be a myth that evolved from an old tps that is not produced anymore.

jason

93must

I am haveing the same problem with my 93! Can anyone tell me how to adjust it specificly? Or a link to a diagram? I dont know which wires to probe! I tried them all and I got nothing! Please help?
What is the isc?
Do I need to adjust the idle before doing the tps?

titanium92

Well there is a tech article in the tech section of this forum that will tell you how to check your TPS.

7upedition

muscularmustangs.com , maintenence section, front page its all there with pics

88BlueGT

We have a sticky on this.

SN95Cruiser

Ok, I have back out the idle screw as much as possible and I cannot drop the voltage. The screw is not even touching any more and its still reading 1.5 with a new tps. Could this be a throttle body issue?