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Posted by SIKLEEN/GT (Member # 2695) on :

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[ August 24, 2008, 10:58 PM: Message edited by: SIKLEEN/GT ]

Posted by JohnB (Member # 969) on :

If it's on your car listed in the Sig...I'd check for a cracked intake manifold first, then check for vaccum leaks (hoses, intake duct, etc), then clean the MAF. One of the three is causing it...

Posted by SIKLEEN/GT (Member # 2695) on :

I replaced my intake manifold because it was cracked about a month ago, at that time I also removed the nitrous, which i havnt used in more than 3 years, and all bolt ons and it has been running fine up until now...

On the rubber intake boot between the MAF and the throttle body there is an un-pathced whole where i used to run my nitrous line... its been like this for almost a 3 months now and nothing has happened.... could this somehow be causing it to turn off now?

Also I cleaned the MAF and it seemed to be running fine as I drove around for 20min or so, but the next day it was back to iddling rough and then shutting off....

Posted by Cobraboy (Member # 7826) on :

quote:
Originally posted by SIKLEEN/GT:
I replaced my intake manifold because it was cracked about a month ago, at that time I also removed the nitrous, which i havnt used in more than 3 years, and all bolt ons and it has been running fine up until now...

On the rubber intake boot between the MAF and the throttle body there is an un-pathced whole where i used to run my nitrous line... its been like this for almost a 3 months now and nothing has happened.... could this somehow be causing it to turn off now?

Also I cleaned the MAF and it seemed to be running fine as I drove around for 20min or so, but the next day it was back to iddling rough and then shutting off....

why would you knowingly leave a hole in your intake? that will be a problem for you if you suck something in there...

fix the hole, and see if that helps... my guess is that is your problem.

if thats not the issue try your IAC valve. they tend to be pretty shitty i have already had to replace mine and my car only had 68k miles on it.

[ November 30, 2007, 05:35 PM: Message edited by: Cobraboy ]

Posted by SIKLEEN/GT (Member # 2695) on :

OK, after a month or so of trying to figure out what is wrong with my car, I think I found something new. I replaced the boot with the whole in it, the EGR valve, Iddle Air Control valve, O2 sensors, and the extentions for the O2's that were put in after my longtubes were installed (one of them looked badly burnt from making contact with the headers) and still my car would iddle rough and turn off as well as throw the following codes... P0135, P0155, P0443, and P1451.

I was looking at the fuse box located on thedrivers side by the brake pedal and i noticed that the #8 fuse, a small 20A fuse, was burnt out. I replaced the fuse and turned the car back on and the codes and check engine light went away and iddle smoothly. As soon as I back out the drive way I hear a little click sound comming from the fuse boxandI see the fuse blew again and the check engine light along with the same codes popped back up. I replaced the fuse but this time the fuse blows ever single time as soon as I turn the key.

Anyboy have any ideas what this could be? where should I start to look?

Oh, and before I found this out I went to THREE shops, two here in Elk Grove that refused to work on the car, one saying the car was "too high performance" and the other two were not able to figure out what was wrong.

Posted by 93ReefBlue5.0 (Member # 5780) on :

u need to find out what circuit that fuse protects... if it popped right after u put it in, theres probly a short somewhere...

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