idrivearx7

i finally fixed my 7, but anyways, once it was fixed and i started it, it idled pretty high so i adjusted it and made it right, but when i hold in the gas just a little bit it goes... vroom...vroom...vroom as if i was revving it slightly. do you know why it would be doing that? my grandpa is extremely good with vehicles and said its probably because its old and it might not idle perfect because of its age(its an 86) it only has 80thousand original miles so i dont think it could be of high mileage since it doesnt have high miles. any suggestions would help. and the water pump was off so i just put water/antifreeze in it and when i turn on the car the "add antifreeze" light comes on for a little bit and goes off, but it doesnt only come on right when i turn the car on, it came on after a little bit too. does that just mean its not full or what?

hioctane-dtc

iTrader: (1)

I'm gonna say it's the TPS that's making the irregular revving, maybe check on that.

datz

TPS or a vacum leak.

idrivearx7

and TPS stands for?

idrivearx7

oh. throttle position sensor. ok. how might i go about checking on that. and how might i check for a vacuum leak?

datz

http://www.rotaryheads.com/PDF/2nd_gen/index.html
here is a link for the fsm, it will tell u how to check/adjust the tps.

to check for vacum leaks feel all vacum lines with the car running, you should feel the air entering if ther is a crack or somthing.
get a auto stethescope (i have found a piece of rubber hose held in your earworks well to) then listen around the intake gaskets(3 and 1 o-ring) you will hear the air leak if ther is one.

idrivearx7

thanks. what happens if i didnt fix either of them?

datz

well the vacum leak might increase in size over time and the tps will probably give out all together or stay the same.

idrivearx7

ok. ill look when i get time. the car isnt with me right now because it doesnt have tabs. so i have to wait till saturday to check it.