ISC, Boost leak, Plugs?

[Pushit2.0]

I would say you need to set your base timing and idle rpm, then check for boost leaks.

~John

[turbotalon1g]

dee dee deee

[Sparky2211]

I would say you need to set your base timing and idle rpm, then check for boost leaks.

~John

yea i need to check for boost leaks for sure. but would it be the base idle if it is only after i am in a high RPM? Say i am at 3k and i take it out of gear and the RPM's drop to to almost nothing or it just dies..

[Sparky2211]

Did the Biss setting and that definitely helped... So i thought. Everything was great until i went and actually drove the car for a while. the idle is wonderful now. but when i am driving and i have to come to a stop the RPM's still drop off and usually the car dies... but if i just keep it in gear till about 1k and then push the clutch in, all is well.

[Sparky2211]

My car stumbles/dies when stopping. Is there a fix?

This is a symptom of a broken speed switch, which is a part of the speedometer in the instrument cluster assembly. With the switch inactive, the ECU does not know the car is moving and doesn't keep the idle high enough to operate the power brakes. For details on why this switch is important, read this post, where Todd Day (the 'talon mgr') explains it, and this one where he explains how to diagnose it. Search the archives for more information.

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this is taken from Vfaq. Every symptom for it matchs the one that i have. what do you guys think? and how hard is iit replace?

[94talonawd]

Do you have a pocket logger? I would use that to check your isc. You can tell if your isc is working by looking at the steps displayed by the pocket logger.

Im not saying that it is the ISC, but it is worth looking into it.

And you also make it sound as if the bov is vented into the atmosphere.
You're describing it just like how a vented bov would do to a car, but then you also stated that your car is all stock. Definitly check for any boost looks, and check your BOV recirculation fitting. Also check your base timing, and base idle properly.

Also, and to just keep in mind, some 3/s have problems with their ECU capacitors that would somewhat cause this kind of symptom, and this involves replacing the ECU itself, or replace the capacitors.

I would also try swapping parts in and out to see if that is the problem.

[94talonawd]

My car stumbles/dies when stopping. Is there a fix?

This is a symptom of a broken speed switch, which is a part of the speedometer in the instrument cluster assembly. With the switch inactive, the ECU does not know the car is moving and doesn't keep the idle high enough to operate the power brakes. For details on why this switch is important, read this post, where Todd Day (the 'talon mgr') explains it, and this one where he explains how to diagnose it. Search the archives for more information.

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this is taken from Vfaq. Every symptom for it matchs the one that i have. what do you guys think? and how hard is iit replace?


Taking off the gauge cluster isnt hard. Probably 30 minutes top. All you really have to do is take off a few screws and you';ll be able to take out the whole thing.

[94talonawd]

Did you do a tune-up when you got the car? Replacing everything you need to?

As what on tuner says, these cars are very old, and most likely the person that had it before you, didnt take good care of the car, or atleast assume that he didnt.

I'd really highly recommend that you atleast do boost leak test.

[Pushit2.0]

After the base timing/idle set if thats not it look into the speed switch and ICS motor as mentioned above.

~John

[Sparky2211]

^^ Yes i set the base idle... From what i have been reading the Speed switch can for sure cause this problem that i am having. I also am looking into the ICS. Although i don't have a pocket logger like stated above.