Wont ideal!!!!

skunkworx · Nov 14, 2009

I installed an off road H pipe on my 94 GT and it wont ideal. Fluctuates and will die sometimes if you let it. The car is stock except for the H pipe and flowmasters. The air tube is not connected, H pipe is used and the air tube is crimped off. Any clues :dontknow:

Javi · Nov 14, 2009

idle?
the egr tube shouldnt make a difference, well it didnt when i had my off road h pipe.

DFG_magic · Nov 14, 2009

Smog tube. I wouldn't think by capping it, the car would shut off like that. Make sure your O2 sensors are connected properly and functioning correctly.

toyman · Nov 14, 2009

I think it can only be related to the O2 sensors. Check to see if they were they put back in and connected.

skunkworx · Nov 14, 2009

DFG magic said:
Smog tube. I wouldn't think by capping it, the car would shut off like that. Make sure your O2 sensors are connected properly and functioning correctly.

They are connected and I just replaced them. I'm kinda thinking the injecters and I have fixed one vacuum leak. It idled bad with the cats on but it didn't die and it does fine when its cold (nice and smooth)

HISSIN50 · Nov 15, 2009

Keep looking for vac leaks.
Be sure the h-pipe mated without leaks to the headers.

Just curious: If the A.I.R. pump is still connected and functional, why crimp the air tube on the new H-pipe?

skunkworx · Nov 15, 2009

HISSIN50 said:
Keep looking for vac leaks.
Be sure the h-pipe mated without leaks to the headers.

Just curious: If the A.I.R. pump is still connected and functional, why crimp the air tube on the new H-pipe?

I didn't it is a used H pipe and the tube on it is crimped. I do have exhaust leaks. I'm going to try and fix them next week