The V8 Owners Forum -

I get a code 19 once a week on the 95 D1 this is a TPS fault code.
I can clear it and things are fine for a week or longer before
a repeat code failure. Once in a while the hot restart idle will
stumble around like running on 4 cylinders until I rev it a couple
times then all is well and a solid smooth idle again. What are the resistance readings I should read with my meter and off what
terminals as there are 3 to the TPS? I know I should have a smooth increase or decrease of resistance while going from idle to full throttle.
I want to test without removing or touching the TPS to make it repeat this
problem hence the throttle arm on the butterfly first.
I was also thinking of the tuner/potentiometer cleaner and lubricant spray.
Ant tips or clues of resistance readings before I settle on TPS part replacement? Thanks in advance.

You need the Land Rover manual.....

Chris.

I have the factory Workshop Manual and a full parts catalog the parts department use. There is no specs on resistance numbers stated as minimum and maximum and what of the three terminals to run a meter across. All I know is that it should read smooth and increase or decrease the resistance when the throttle is moved from idle to full throttle. Common sense here.
The Workshop Manual section 19 page 2 states it is mounted on the plenum
and changes signal to ECM. that is all! Big deal. There is nothing on specs just plain useless information. I know it has 4 wheels and a spare on the back door that is about as useful. Seems no answers by anyone not even Joey on this forum.
Without specs this is shooting in the dark. I do not operate this way as a aircraft mechanic. Sorry i'm not mad at you this is basic information a high dollar Workshop Manual without this information. Not even in the electrical section at the rear of the Manual. It does not even go inside the distributor where the fly weights and return springs are and the rubbing advance cam surfaces that need cleaning and teflon grease applied to operate advance smoothly and correctly. Simple things yes, important things yes but not covered. Dealers will just replace the distributor and bill the customer big money. I'm not a dealer person that throws enough parts and money at it until the fault gets found with a big useless parts bill. Like their vacuum advance units a POS that fail within 3 years or less on average.
Got a custom one from Oz. lasted so far many times longer than Rovers $123 unit each. I paid $47 USD fron Oz, this allows 4 more degrees advance and softer comes in quicker. Frustrated at the moment here.