Stalling, funny idle...
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Stalling, funny idle...
Well I had my motor built a ways back but have been unable to drive it. Mostly due to frustration but I have ran out of ideas until now. When I had the motor built, I brought it to a mechanic due to lack of time at that moment but I did go when I had time to work on it myself (long story). When I got everything done and back in the initial start up was fine, ran rich but not a big deal, as it warmed it leaned out and was fine. The ride home the car drove fine but rolling to a stop at a sign or red light, caused the car to stall. Starting it back up caused the idle to bounce and after a couple revs it would settle back down. I got it home and took out the IACV and cleaned that up but the problem presisted. I hooked up the laptop to clean up some of the a/f to see if that may help and nothing as well though, while logging I noticed the map was reading way higher than where it would normal idle so I thought the map sensor maybe faulty. Ordered a new one and replaced it, still same issue. Ran through all the vacumm sourced to check for leaks and nothing, cleaned the throttle body and still nothing. So now I have been sitting here for months going back in my head, thinking what possibly I could have done wrong or overlook except for the valve adjustment. So I guess my question is would a wrong valve adjustment cause these kinds of problems? It's one of the things I wasn't there for so I'm not sure if he spun the crank after adjusting each cylinder or if he just set it at TDC and adjusted them all. Probable cause or am I just grabbing at straws?
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Need more info on the setup...stock motor?
Regards, Xenocron Tuning Solutions eCtune Team eCtune Authorized Tuner Location: Ringwood, NJ / Hillburn, NY U.S.A. www.xenocron.com DIY ECU Chipping, Fuel Management Parts and more...
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Too tight of an adjustment would open the valve too early and close it early...but it would give a higher lift. I think you would notice more issues than just a stalling idle...but let us know how you make out on the valve adjustment and if it cures your issue.
Regards, Xenocron Tuning Solutions eCtune Team eCtune Authorized Tuner Location: Ringwood, NJ / Hillburn, NY U.S.A. www.xenocron.com DIY ECU Chipping, Fuel Management Parts and more...
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I will check this, I am most certain though it's connected correctly. I have run through all my wiring and hoses atleast 25 times...LoL...thanks ! Anymore ideas please leave your input, I'll try anything at this point.Gaskleppie wrote:Maybe a wrong connected purge valve? If the lines are connected after the throttle valve, it can give strange things. The purge lines must be connected before the throttle.
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Threw in a new factory replacement MAP sensor from the local autoparts store yesterday and wouldn't you know it...started right up and runs pretty smooth. According to the vac/boost gauge there is a small vacuum leak present as it's reading from the -18hg/in but I should be able to narrow that down pretty easily.
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This is why I dont like glueing these little things together myselfAlmighty-Si wrote:No, I have the DIY 2.5 bar Motorola sensor from xenocron that Chris put together for me. It's brand new which is why I never went back to it as being my problem, just noticed it yesterday when I pulled all that fuel out to get it running. Oh well guess I have to get yet another...
Regards, Xenocron Tuning Solutions eCtune Team eCtune Authorized Tuner Location: Ringwood, NJ / Hillburn, NY U.S.A. www.xenocron.com DIY ECU Chipping, Fuel Management Parts and more...