Code 53 TPS voltage too high

[X-North]

Hi
I just got a 53 code on my 1992 Explorer that tell me the voltage of the TPS is too high. I made the test for voltage as stated in haynes manual and the voltage is 4.93volts. Less than the 5 volts as stated in haynes. How could it be possible then that the tps give high voltage codes if its still under the 5 volts range?

Thank you

 

[Phuturephantasy]

It may have momentarily exceeded 5.0v which would throw up the code which is then stored.

The TPS can be adjusted for optimum performance, read throught his thread which should help -

http://www.explorerforum.com/forums/showthread.php?t=79362&highlight=tps+mod

 

[Turdle]

5v at idle?

 

[X-North]

no the test for tps is key on engine off. when you test it you are supposed to have 5v at wide open throtlle

 

[Turdle]

what is the idle position voltage? Check it several times by pulling the throttle open and letting it snap back-
it should return to exactly the same voltage every time-
It may have given a high idle position reading at some point.

 

[X-North]

I tested it and its ok.....quite funny that it give me this code because the truck is fine at idle ..even if i suspect a loss of performance on the start of the line

 

[Maniak]

I got that on our '92 and in my case it turned out to be a bad throttle body. After 300k+ miles the TB was getting worn and the butterfly wasn't centered. Now when I took my foot off the throttle it wouldn't always close all the way which was confusing the computer.. I changed the TB and its much happier now (got one off an Aerostar for $20 at a u-pull it place).

~Mark

 

[X-North]

Thank you man im gonna unbolt it and check will feeler gauge and anyway theres a lot of aerostar , bronco and explorer at my local junkyard