TPI, idle problem
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TPI, idle problem
First I recently acquired this car, the past owner knew little about it, I'm not a complete idiot but will tell you what I know or have found out.
I know he bought a 350 short block, put Edlebrock E-Tec heads, Edlebrock intake, Edlebrock high flow runners, Edlebrock headers, has bigger injectors I don't know how big, definetely is cammed, he didn't know and I'm not sure how big, definetely has a stall converter, he wasn't sure how big, I'm guessing 1800. Gears are .410.
My dilema: car was idleing high, I did the IAC reset thing, ground A/B, turn on ing, 45 secs unplug IAC, start car etcc... to no avail. Took out IAC, gasket was bad, IAC looked a little cruddy, decided to replace whether it needed it or not, part not in until next day, so I took the old one and was meessing with it and effictively broke it... so I ran the think pretty much all the way out so it would not close the hole.. re-installed, reset idle and was actually happy, I got the idle down and it ran OK.. but next morning new IAC came in so I quickly swapped it out, did the IAC set thing again, and had it idling where I wanted (about 750-800 with the lopiness of the cam felt about right).. later took it for a ride, started fine, idled fine, got to the gas station it was idling high again. Back home reset it again, was idleing fine again, until I went for another ride.
Things that I noted. The IAC I broke and had all the way out, I noticed the car when slowing down when it got to 1800 rpm or so it felt like you threw it in neutral, stall converter doing what I think it should be doing in my opionion.. with the new IAC this doesn't happen, it's like it keeps feeding it gas and won't the it get into that stall mode... plus it runs hot like this as well.
My theory is that with the stall converter the computer won't let it go into that stall mode as I call it and keeps feeding it gas, and I think the computer re-learned it self to a hight idle to compensate. Am I nuts or is there something to this that I am missing or not doing right???
Also I don't think the TPS has anything to do with it as being a 91 these are not the adjustable type I don't think. I did try to search the forums and didn't find anything related to this.
Any insight is appreciated.
I know he bought a 350 short block, put Edlebrock E-Tec heads, Edlebrock intake, Edlebrock high flow runners, Edlebrock headers, has bigger injectors I don't know how big, definetely is cammed, he didn't know and I'm not sure how big, definetely has a stall converter, he wasn't sure how big, I'm guessing 1800. Gears are .410.
My dilema: car was idleing high, I did the IAC reset thing, ground A/B, turn on ing, 45 secs unplug IAC, start car etcc... to no avail. Took out IAC, gasket was bad, IAC looked a little cruddy, decided to replace whether it needed it or not, part not in until next day, so I took the old one and was meessing with it and effictively broke it... so I ran the think pretty much all the way out so it would not close the hole.. re-installed, reset idle and was actually happy, I got the idle down and it ran OK.. but next morning new IAC came in so I quickly swapped it out, did the IAC set thing again, and had it idling where I wanted (about 750-800 with the lopiness of the cam felt about right).. later took it for a ride, started fine, idled fine, got to the gas station it was idling high again. Back home reset it again, was idleing fine again, until I went for another ride.
Things that I noted. The IAC I broke and had all the way out, I noticed the car when slowing down when it got to 1800 rpm or so it felt like you threw it in neutral, stall converter doing what I think it should be doing in my opionion.. with the new IAC this doesn't happen, it's like it keeps feeding it gas and won't the it get into that stall mode... plus it runs hot like this as well.
My theory is that with the stall converter the computer won't let it go into that stall mode as I call it and keeps feeding it gas, and I think the computer re-learned it self to a hight idle to compensate. Am I nuts or is there something to this that I am missing or not doing right???
Also I don't think the TPS has anything to do with it as being a 91 these are not the adjustable type I don't think. I did try to search the forums and didn't find anything related to this.
Any insight is appreciated.
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