Stalling when put on load
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Stalling when put on load Just finished a h/c set up. Everything is squared away except when I put it in gear whether on reverse or drive, the engine would start to stall, the MIL would come on and I immediately put gear selector to Neutral or Park to keep from stalling and MIL turns off. Trying to figure out what's going on here. I'm thinking maybe a malfunctioning IAC?
Any help and suggestions from an LT1 pro is desperately needed. Thanks
Any help and suggestions from an LT1 pro is desperately needed. Thanks Thread Starter
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From: Mundelein,Illinois
No update yet, cause I can't even drive it. You're right about maybe the idle dropping too low. I'll call Ion and ask him about that. Thanks for your suggestion.
Have you lost any trans fluid at all? They are just easy things to look at while waiting. You can reset your Iac yourself and you shouldnt really need a retune to up the idle as you already had a set of heads and cam. Your idle should be up pretty high and I bet there is something else goin there.
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Can the trans have any affect on that? And yes, maybe I'm down on the fluid a little from the tear down of the cooling lines during the swap. Never even thought about that. Thanks Rob. I'll check on that as well.
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Well, I borrowed a real scanner from my transbuilder and I'm getting a DTC33 which is the MAP sensor code. Replaced that and it's still throwing the same code. Checked the wiring and also for vacuum leak around the MAP area, everything seem to be in order. I even opened the tb plate a little just to raise the idle, and it helped some but still throws the same code. This is really getting crazy. Can't even drive her around the block. Help me out here guys!
well since a MAP is essentially a barometer for your intake manifold you are mostly likely just throwing a temporary code since your vacuum is so low when it's stalling out
check for vacuum leaks post-MAF, like possibly around the TB, go on shbox's site and look for the guide on resetting the IAC valve
check for vacuum leaks post-MAF, like possibly around the TB, go on shbox's site and look for the guide on resetting the IAC valve
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well since a MAP is essentially a barometer for your intake manifold you are mostly likely just throwing a temporary code since your vacuum is so low when it's stalling out
check for vacuum leaks post-MAF, like possibly around the TB, go on shbox's site and look for the guide on resetting the IAC valve
check for vacuum leaks post-MAF, like possibly around the TB, go on shbox's site and look for the guide on resetting the IAC valve
If you sure there's no vacuum leak anywhere and you've already replaced the sensor. I'd check the wiring. Make sure the connection is tight and the wires aren't damage/cut. Use a multimeter to check the voltage to and from the sensor as well as the ground!
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She's finally running. After a week of chasing the the problem. Just a simple wiring problem that was overlooked. Now, just waiting for my date with the dyno for some update. And hope to have one more nice weekend day at the track after that. Thanks to everyone for all your suggestions.
