1997 Ford F150 operating parameters

Do you have any codes? Are you having any problems with the running of your truck? Get back to me as then I can be of better help.

po304(misfire #4). Installed new coils and wires. Missed one. Will fix and clear code.

Ok let me know what you find after that. If you need anything else just ask. Thanks.

cleared codes. MY anylizer is telling me that % of load at idle is between 18 and 23% is that correct?

% of load from what?

the engine. (answer to your question) Also my abslt tps% is 18.8%. is that correct. I have an engine anylizer. I can see what my os sensor short term correction is based on my % of load, they are operating correctly. All other vehichles that I tested, at idle their tps was at 0%. Mine tested ok. 1 volt to ground and 5 volts to 0 at wot koeo. Engine running at idle tps was at 18.8%.

I don't use percentages I use voltage. So with the key on engine off the voltage on the reference wire should be .8 volts and should increase steadly to 4.5 to 5 volts with no glitches or drops. So if it does that then it is working right.

it started out more than .8 and didn't go above 4.2 at wot. Purchased new tps but could't screws out. I think they are original, stuck real good. Have to use easy out in the am. I tested my mass air sensor and in voltage terms it tested ok. 1.4 volts at 2000 rpm in park in garage.(exhaust outside).

Sounds like a tps problem as the voltage reading you give me. The screws are put in with thread locker so they will be hard to get out.