engine light - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

orange-prince · 07-17-2010, 03:06 PM

hi
i bought kooks lt for my l99 and when i finshed instaling the
kooks headres my check engine light came in
by the way the kooks is 1/78 lt off-road
what can i do now
ps i have diablo programer but i dont know what 2 do

MikeZ28 · 07-17-2010, 09:45 PM

Since it appears from your profile that you are not in the USA, I don't know if your car originally came with catalytic converters and the rest of the emission control system. But if it did, and if you removed the cat converters, then you will get the check engine light because the O2 sensors show that the emissions are higher now. Or maybe the header change did something else that affected the O2 sensors.

Also, adding headers to a factory-stock Camaro might disturb the air-fuel mixture somewhat, which might set the check engine light if it's too far out of range. The car probably needs to be tuned to adjust the fuel mixture to compensate for the exhaust changes. I don't know enough to tell you how exactly to do that.

This question probably would get more action in the "tuning" part of this forum.

orange-prince · 07-18-2010, 01:03 PM

so i should change my exhaust and get a tune thanks mike
by the way our cars here in qatar is 100% like americans cars in us

07-17-2010, 03:06 PM	#1
orange-prince QATAR 2022 Drives: black cts-V coupe a6 Join Date: Apr 2010 Location: doha-qatar ( middle east ) Posts: 983	engine light hi i bought kooks lt for my l99 and when i finshed instaling the kooks headres my check engine light came in by the way the kooks is 1/78 lt off-road what can i do now ps i have diablo programer but i dont know what 2 do

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07-17-2010, 09:45 PM	#2
MikeZ28 Drives: '04 GTO, '00 Z28, '95 Z28 Join Date: Mar 2009 Location: Austin, TX Posts: 225	Since it appears from your profile that you are not in the USA, I don't know if your car originally came with catalytic converters and the rest of the emission control system. But if it did, and if you removed the cat converters, then you will get the check engine light because the O2 sensors show that the emissions are higher now. Or maybe the header change did something else that affected the O2 sensors. Also, adding headers to a factory-stock Camaro might disturb the air-fuel mixture somewhat, which might set the check engine light if it's too far out of range. The car probably needs to be tuned to adjust the fuel mixture to compensate for the exhaust changes. I don't know enough to tell you how exactly to do that. This question probably would get more action in the "tuning" part of this forum.

07-18-2010, 01:03 PM	#3
orange-prince QATAR 2022 Drives: black cts-V coupe a6 Join Date: Apr 2010 Location: doha-qatar ( middle east ) Posts: 983	so i should change my exhaust and get a tune thanks mike by the way our cars here in qatar is 100% like americans cars in us