Supercharged Issue
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Joined: Jan 2010
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From: MD
Supercharged Issue
2005 AP2 Vortech V2
Haltech PS500 w/ FullBlown OBD-II compliant harness (PnP)
675cc Dekka injectors
Walbro 255
Well, the hot start and rev hang issue has been resolved....BUT, now when I start the car on a warm start (fully warmed up) it seems to have an issue. I went into a store after driving for ~40 minutes, parked it, left it running for a minute before actually turning it off, went into the store (for 15 minutes) came back out, started it up, went to the stop sign a couple feet away, and it dropped to 500 rpms and 1 second later shut off (battery light in cluster was lit up, don't know if this is any help or not). It has done this a couple times. Another instance was when I came home, left it running for a minute and ran inside to get something, got in the car and backed out of the driveway and after being in the street it just shut off. No I am not stalling the car, it was in neutral. Same issue. Seems to only do it when its fully warmed up. After driving the car constantly when warmed up at a constant speed for a couple minutes and THEN coming to a stop, she drives fine and doesn't drop in RPMs. But when starting the car again AFTER driving it for a while and driving a little to a stop, she seems to not like that and turn off on me....it's really weird.
I have been told by a buddy on the forums to remove the valve cover (he had the same incidence) and remove the 10mm bolts that hold the timing gear out (they backed out on him) and to tighten them; to see if that is the issue. Going to do that tomorrow and check it out, just wondering if that's a possible issue?
Any input/suggestions on a fix would be appreciated.
Haltech PS500 w/ FullBlown OBD-II compliant harness (PnP)
675cc Dekka injectors
Walbro 255
Well, the hot start and rev hang issue has been resolved....BUT, now when I start the car on a warm start (fully warmed up) it seems to have an issue. I went into a store after driving for ~40 minutes, parked it, left it running for a minute before actually turning it off, went into the store (for 15 minutes) came back out, started it up, went to the stop sign a couple feet away, and it dropped to 500 rpms and 1 second later shut off (battery light in cluster was lit up, don't know if this is any help or not). It has done this a couple times. Another instance was when I came home, left it running for a minute and ran inside to get something, got in the car and backed out of the driveway and after being in the street it just shut off. No I am not stalling the car, it was in neutral. Same issue. Seems to only do it when its fully warmed up. After driving the car constantly when warmed up at a constant speed for a couple minutes and THEN coming to a stop, she drives fine and doesn't drop in RPMs. But when starting the car again AFTER driving it for a while and driving a little to a stop, she seems to not like that and turn off on me....it's really weird.
I have been told by a buddy on the forums to remove the valve cover (he had the same incidence) and remove the 10mm bolts that hold the timing gear out (they backed out on him) and to tighten them; to see if that is the issue. Going to do that tomorrow and check it out, just wondering if that's a possible issue?
Any input/suggestions on a fix would be appreciated.
Joined: Oct 2003
Posts: 11,949
Likes: 474
From: MAHT-O-MEDI
TPS sensor?
I have had some hot start issues and a little hot stumble with my SOT kit and recalibrating the tps sensor helped some but I also got some benefit to resetting the idle screw on the throttle body that comes with the SOT kit. Don't even remember if the stock TB has an idle adjustment.
I still have some stumble when hot that I need to tinker with but the idle problem on hot starts is gone.
I also take it you have already checked for any vaccuum leaks?
I have had some hot start issues and a little hot stumble with my SOT kit and recalibrating the tps sensor helped some but I also got some benefit to resetting the idle screw on the throttle body that comes with the SOT kit. Don't even remember if the stock TB has an idle adjustment.
I still have some stumble when hot that I need to tinker with but the idle problem on hot starts is gone.
I also take it you have already checked for any vaccuum leaks?
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Joined: May 2009
Posts: 1,308
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I'm having similar issues. There are a bunch of threads on this, or on things similar to this. Here's one that talks about adjusting the idle screw. Next on my list of attempted fixes is to mess with the idle screw and the TPS calibration.
https://www.s2ki.com/s2000/topic/854...-while-idling/
https://www.s2ki.com/s2000/topic/854...-while-idling/
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