i have a 91 firebird tbi and i have had the check engine light come on after i took off the cat and put on the headers. it would normaly go on when i drove it hard recently it has come on more often and now its always on. i have posted before about my car starting rough and then smoothing out before. tonight i went to start it and it ws rough and i gave it gas and it died then i tried letting it go with no gas and it died again can the egr be doing this or something else
please help


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1991 formula
17 torque thrusts
edelbrock cam and intake
pacesetter headers
hypertech chip
180 stat
flowmaster 90 series no cat
custom interior
massive 12's



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06-30-2002 04:54 AM



ede
Moderator

Registered: Aug 1999
Location: Wellston,Ohio
Posts: 4653
yeah the egr or something else could be causing your problems. have you tried to trouble shoot it or trace down the codes?


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ICON Motorsports
1st & 3rd
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06-30-2002 11:30 AM



88Bravo
Senior Member

Registered: Apr 2002
Location: Charleston, SC
Posts: 179
Two things, first try to diconnect your battiery to reboot your computer. Second when your light came on what RPM were you at?? IT might be your EGR at the high rpm range. Good luck. Stupid wuestion, but are all of your plug wires on and plugs all the way in? Just try to KISS keep it simple stupid. That has worked more than I care to admit in the past for me.


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305, 5-speed, TBI, and 16" Formula rims. Ravin Muffler, installed Hooker Super Comps and Y pipe, removed cat and A.I.R. pump, not sure about a K&N. Might have to mod the Air cleaner first.


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07-01-2002 02:46 AM



91firebirdfosho
Member

Registered: Jul 2001
Location: ill
Posts: 46
i replaced egr but still has the check engine light on at idle what is the little box with the plug in and it has a hose running from it to the egr i ran my car and pulled the hose off of the egr and there is no suction or air movement for that matter could it be the sensor or whatever it is isnt working

 

91,

What is the error code(s) you are getting?