Wiseman Help!! Car shuts off under boost!!!

[black97spyder]

I just got done dropping in a built 7 bolt with bc 288's to my 97 AWD Talon and Finally got her up and running a day and a half ago. Been trying to get small bugs worked out and been going good until now.... I have been trying to see how well this motor runs with my e316g. Well twice now the car has died if i floor It under any boost weather It's 10 psi or 12 psi. It seems to die at high rpm. Last night it died at about 6,200 rpm and just a few minutes ago it died at about 6,700 when I was going to see What rpm the cams stopped pulling. It's either going to be fuel or spark related I already know but I can't figure out the cause of it to die? Last night I loosened the gas cap and it started right up. And when it did it a few mins ago, after it died, the tach was going all crazy in the dash flying all over the place and even pegged itself past 9k and went all the way to 0 and then back to It's normal resting spot like when the car is off? The plug that feeds the ignition control module was loose a little bit but it didn't seem loose enough to make the car die.

Everything seems fine during normal driving besides maybe a small boost leak and a couple oil leaks I need to fix.

This car also has an emissions delete that I did right before the motor install.

I am at a loss for ideas? Someone please help with an idea or something!! ALL input will be greatly appreciated!!!

 

[TSiAWD666]

My guess is you either have a plug loose or wire that is almost grounding that when the engine is torquing you're losing connectivity or grounding something out. Have had it happen to me before, and it's not fun finding. Harnesses that can be zip tied into place to prevent them from shifting is an easy fix for those moving, but finding a grounding wire is not.

 

[GRAVEDIGGER]

I would get that loose connector at the icm/ignitor taken care of with at least a ziptie first to see if that's it. I have known of quite a few of them to come loose and cause the car to die. If that wiggles loose you will immediately lose spark ya know.

 

[black97spyder]

Yeah I'm aware if it comes loose u lose spark but it didn't explain the tachometer doing the wierd spiking. I'll Def try to zip tie that bad boy down when I go home for lunch!!! I'm still stumped on what else it could be because I don't think that is the culprit but I def need to check my grounds and plug wires as well!!

Don't think it will fix it but it help eliminate things..... On the way to work I noticed my hallman pro was jetting air out of the little bleeder hole when is start to boost up even with the boost controller all the way off (i know this because my boost controller is in cabin next to my OBD 2 port) and when i plug the hole with my finger It lets the boost raise a lot faster so it seems as if It's a boost leak there??

 

[GRAVEDIGGER]

The power transistor aka ignitor aka ignition control module WILL cause the tach to do crazy things if it is loose, or unplugged. IT is where the tach gets its signal from.

 

[black97spyder]

Hmm Okay Thanks man!!! I'll zip tie it as soon as I go to lunch and hopefully that fixes the Problem!

What's ## thoughts about my boost controller problem that I mentioned above? It seems my hallman pro jets air out as I'm boosting and If I cover the hole with my finger It seems to take away my boost leak and make the turbo spool faster?

 

[GRAVEDIGGER]

It shouldn't leak any air when boosting, but it will let a quick burst out of that hole when you lift the throttle after boosting. If it is leaking while boosting I would say there is a problem. Are you sure you have it connected correctly? Maybe you can take it apart and make sure there is nothing clogging it or preventing the ball and spring from seating correctly.

See here for a better explaination... http://www.dsmtuners.com/forums/turbo-system-tech/400235-hallman-pro-leak.html#post152559657

 

[black97spyder]

Hmm I didn't think that was right for it to be leaking!! I hooked it up according to the instructions. It is constantly pushing air through the little hole, the less boost the less air comes out and the more boost the more air comes out, when i block it with my finger, it seems to help a good amount on spool time.

How many turns should it take to turn the boost up from the wastegate pressure? It takes me like literally 10-15 full turns before it will go up 2 psi?

I'm about to read the info in your link so hopefully that helps me some

 

[GRAVEDIGGER]

How many turns should it take to turn the boost up from the wastegate pressure? It takes me like literally 10-15 full turns before it will go up 2 psi?

That is not right... Something sounds wrong with the internals of the controller.

 

[black97spyder]

Just great! My cheap eBay MBC is still going strong on my other car and my expensive hallman hasn't even lasted me 3 days