Engine dies when I stop sometimes....
07-05-2008, 05:39 PM
#1
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Engine dies when I stop sometimes.... First off, car is 87 chevy camaro with 1999 5.3L in it and 4L60E. Engine has a Lunati 222/222 cam with .560 lift and a set of comp 918s. Tranny has a 3000 stall.
Sometimes when I come to a stop or if I goose it and get out of it, the engine dies down.. I also notice that when I first crank it up it loses idle when i hit the brakes about 3-5 times. After that it idles fine brakes don't bother it. Just dies when I hit the gas and get out or either have to get on the brakes pretty good.. Has anyone ever had this problem? vacuum maybe?
Sometimes when I come to a stop or if I goose it and get out of it, the engine dies down.. I also notice that when I first crank it up it loses idle when i hit the brakes about 3-5 times. After that it idles fine brakes don't bother it. Just dies when I hit the gas and get out or either have to get on the brakes pretty good.. Has anyone ever had this problem? vacuum maybe?
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07-07-2008, 05:28 PM
#9
Pull the vacuum hose that goes to the power booster and plug it, then drive the car. Be careful as you will not have any power assist for the brakes. If this takes care of your problem, you have a defective power booster. As you stated, make sure you have no other vacuum leaks. Hope this helps
07-07-2008, 10:44 PM
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Yeah got that hooked up. had it backwards at first but I fixed it. I had it to where it would recieve 12 V when pressed now its dead when pressed. hot when not. I fixed that about 3 weeks ago... I'll try the booster vaccum and see if it changes anything. Any other options you guys can think of? Thanks for the help.
??? 
07-10-2008, 11:42 AM
#16
if th e maf is too close to the throttle body it can be too sensitive. me an a frined just put a 5.3 in his s10 and the factory location for the maf was like 18 inches away over byt he filter.
on his truck (as a temporary thing just to get it running) we grabbed the throttle body boot off my ls1 (puts the maf about 4 inches awy) and stuck it on so he could take it around the block.
even in my drivey just backing up when he stopped it wanted to die. we couldnt figure it out and someone on an s10 forum told us it was too close.
im thinking yeah right like that matters? but we got an elbow and mounted the maf about 12 inches away it instantly changeg and did not want to die.
on his truck (as a temporary thing just to get it running) we grabbed the throttle body boot off my ls1 (puts the maf about 4 inches awy) and stuck it on so he could take it around the block.
even in my drivey just backing up when he stopped it wanted to die. we couldnt figure it out and someone on an s10 forum told us it was too close.
im thinking yeah right like that matters? but we got an elbow and mounted the maf about 12 inches away it instantly changeg and did not want to die.
07-10-2008, 12:29 PM
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if th e maf is too close to the throttle body it can be too sensitive. me an a frined just put a 5.3 in his s10 and the factory location for the maf was like 18 inches away over byt he filter.
on his truck (as a temporary thing just to get it running) we grabbed the throttle body boot off my ls1 (puts the maf about 4 inches awy) and stuck it on so he could take it around the block.
even in my drivey just backing up when he stopped it wanted to die. we couldnt figure it out and someone on an s10 forum told us it was too close.
im thinking yeah right like that matters? but we got an elbow and mounted the maf about 12 inches away it instantly changeg and did not want to die.
on his truck (as a temporary thing just to get it running) we grabbed the throttle body boot off my ls1 (puts the maf about 4 inches awy) and stuck it on so he could take it around the block.
even in my drivey just backing up when he stopped it wanted to die. we couldnt figure it out and someone on an s10 forum told us it was too close.
im thinking yeah right like that matters? but we got an elbow and mounted the maf about 12 inches away it instantly changeg and did not want to die.
You think this could make it run rich as well? I think mine may still be a little rich...
07-10-2008, 12:52 PM
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i'm sure jessie gave you a decent mail order tune, but you need to get that thing done by someone local to you. They can tune out all the quirks. Ryne @ CMS gave me a mail order tune, and it worked great, but i still had some problems. I took it into his shop and we drove the car around filled the data tables with real time information and he fine tuned it.
Mine use to die to if i clutched in at 1500 rpms or higher, it would drop down and dies sometimes as i came to a stop. now it doesnt.
Mail order tunes only go so far.
Mine use to die to if i clutched in at 1500 rpms or higher, it would drop down and dies sometimes as i came to a stop. now it doesnt.
Mail order tunes only go so far.
07-10-2008, 01:08 PM
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i'm sure jessie gave you a decent mail order tune, but you need to get that thing done by someone local to you. They can tune out all the quirks. Ryne @ CMS gave me a mail order tune, and it worked great, but i still had some problems. I took it into his shop and we drove the car around filled the data tables with real time information and he fine tuned it.
Mine use to die to if i clutched in at 1500 rpms or higher, it would drop down and dies sometimes as i came to a stop. now it doesnt.
Mail order tunes only go so far.
Mine use to die to if i clutched in at 1500 rpms or higher, it would drop down and dies sometimes as i came to a stop. now it doesnt.
Mail order tunes only go so far.
I plan on getting it done local. I just hadn't found anyone local that can. Closest I've found so far is Thunder in Baton Rouge.