initial set plug
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When I jumper my initial set plug my idle goes way down. Is that normal? Also, when jumpered, I don't seem to have too much control using the idle adjust on the plenum. What's up?????
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Re: initial set plug
Originally posted by 1adzam
When I jumper my initial set plug my idle goes way down. Is that normal? Also, when jumpered, I don't seem to have too much control using the idle adjust on the plenum. What's up?????
When I jumper my initial set plug my idle goes way down. Is that normal? Also, when jumpered, I don't seem to have too much control using the idle adjust on the plenum. What's up?????
I never have much luck with the plenum screws. Just screw it all the way in, clean your TB, make sure you have a good working thermowax, and then set your idle with the secondary throttle plate stop screw and 8mm jamnut (may be covered with factory jbweld, but easy to chip out.)
Then check your timing, set your TPS, and pull out the ISC jumper. Idle should not change when you pull out the jumper.
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scathcart, do you know of any pics I could reference to see which screw to adjust to change idle? curently my bac valve is compensating it up about 200rpm, which I think may be the cause of a mild stumble...
the factory manual doesn't talk about that adjustment, does it?? I assume not because you say it's possibly blocked up...
the factory manual doesn't talk about that adjustment, does it?? I assume not because you say it's possibly blocked up...
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Question: If the ISC tells the ECU to stop using the BAC to compensate the idle condition, what would happen if I didn't have a BAC? Would I not need to use the ISC to make changes?
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Originally posted by J-Rat
I was under the impression it stopped the ECU from making idle compensation. I wasnt aware it stopped the BAC cold.
I was under the impression it stopped the ECU from making idle compensation. I wasnt aware it stopped the BAC cold.
You also need to jumper the ISC when you set the timing. It is a good idea to jumper the ISC even if you don't have a BAC.
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