preludetwofast

So My 84 turbo is acting really weird, If i hit tha gas at idle it bogs down, or barely revs, but if i sit there and pump the pedal, once it gets over 3k it runs fine, i just have to keep it above 3k. If it goes back down then I have to repeat the pumping process all over again.. Anyone have a clue about whats going on?

Gixxer

Is it possible the fuel filter is clogged a bit? I had a 240 when I was in HS and the FF ALWAYS clogged because we had REALLY crappy gas in KS

NismoPick

Pull ecu codes........

preludetwofast

as soon as it quits raining thats what I'm gonna do, I just looked up how to pull my codes..

duowing

Probably a bad CHTS, MAF, or both. I think above 3K RPM the ECU kind of kicks into open loop and that's about when most of the sensors stop really mattering as it's just running off the pre-programmed fuel maps in the ECU. Don't hold me to that though. I just remember when my 280ZXT had a bad CHTS it would run awful until you hit a higher speed, for me 65mph on the freeway, it would be over 3K and ran beautifully. If only I'd have known that then, it would have saved me a lot of headache.

preludetwofast

thanx I'll look into that..

preludetwofast

what exactly is a chts?

WildmaN

^Cylinder Head Temperature Sensor or Sender

preludetwofast

ok thanx

WildmaN

^ No problem man, anytime.

turbotim

Dont forget to inspect your 02 sensor too!

preludetwofast

ok so i ran the codes, and the only one other than 14 and 31, which from what I gathered are supposed too show, the only other one was 23.. It said Idle switch, I called my local parts store, and they didn't even pull up an idle switch, so what now?

NismoPick

Idle switch = TPS (throttle position sensor).

preludetwofast

thanx