Check engine light

TwiLighTBluEGT · 07-05-2002, 09:29 PM

Will an off-road H-pipe trigger the check engine light on a 91 5.0? If it does, what can and should be done to prevent it from coming on?

Ieatcamaros · 07-05-2002, 09:52 PM

Did you use your old O2 sensors? What did they look like? Do you still have the smog pump hooked up?

VeNuM · 07-05-2002, 10:45 PM

no, only on the 94-current mustangs will the check engine light come on, (the use of mil eliminators fixes that) but it won't come on on your 91.

TwiLighTBluEGT · 07-05-2002, 10:45 PM

Well, I have the pipe, its just not on my car yet. I was just curius because I've heard it will trigger the check engine light with no cats or something like that.

07-05-2002, 09:29 PM	#1
TwiLighTBluEGT Registered Member Join Date: Jun 2002 Location: Massachusetts Posts: 157	Check engine light Will an off-road H-pipe trigger the check engine light on a 91 5.0? If it does, what can and should be done to prevent it from coming on?

07-05-2002, 09:52 PM	#2
Ieatcamaros Domestic Rice really sucks! Join Date: Apr 2002 Location: KY Posts: 973	Did you use your old O2 sensors? What did they look like? Do you still have the smog pump hooked up? __________________ The sig says it all.

07-05-2002, 10:45 PM	#3
VeNuM Registered Member Join Date: Apr 2002 Location: Downers Grove, IL Posts: 464	no, only on the 94-current mustangs will the check engine light come on, (the use of mil eliminators fixes that) but it won't come on on your 91. __________________ 1989 Black Mustang GT Hatchback, Underdrive Pulles, Electric Fan, Cold Air Intake, Headers, Offroad H-Pipe, Magnaflow catback, Steeda Tri-Ax, Fluidyne Aluminum Radiator, Timing at 14*, 3.73's Coming not so soon: 408w Ricer Hater's Club Member #59

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