TPS code 24 / check engine light

[kevin s]

'92 4.0 HO.
Check engine light comes on when starting again after brief shut down. Like when going for a loaf of bread, after it has been shut off for just a few minutes. Code 24 - TPS sensor. Replaced it. Disco'd the battery to clear the codes. No improvement.

[HossHoffer]

Did you check the TPS with your ohmmeter? Does the light come on and stay on until the next start or just come on briefly? Could be wiring or a bad ground. Ground faults are hardest to find because a bad ground on one sensor can cause a fault on another. Start by cleaning the connector and checking the ground to the tps. Otherwise you might have to get it put on a scanner at the garage.

[kevin s]

Once the light comes on, it stays on. I did the wiggle test on the connector, but did not physically clean it up. I'll do that. I have a FSM coming in the mail. I'll test it once I can figure it out.

I am guessing wiring of some sort, as I have replaced the part with a new one without improvement. If it is a bad ground on something else and it's throwing a bad code, I'll never find it. At least I have a dealership that is excellent.