engine light after installs

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Apr 4, 2005 | 11:30 AM

rossafenton

Thread Starter

Registered User

Joined: Feb 2005

Posts: 51

engine light after installs

well the installation of LT headers, cat back exhaust and lid are done and the "check engine light" is on..........

ideas?

thanks for any thoughts!

Ross
98 SS

Apr 4, 2005 | 11:39 AM

teke184

Registered User

Joined: Sep 1998

Posts: 8,319

From: US 1 Mile Marker 52 in the Florida Keys

Re: engine light after installs

you DO know that the SES light indicates the computer has an error code stored in it...right?

go have it scanned...that will tell you 90% of what it could be.

probably something related to EGR, AIR or the cats

Apr 4, 2005 | 03:02 PM

Greed4Speed

Registered User

Joined: Apr 2003

Posts: 4,507

From: FTW, TX

Re: engine light after installs

Service engine or check engine?

Apr 4, 2005 | 04:43 PM

BirchMan98z

Registered User

Joined: Dec 1999

Posts: 969

From: St. Louis, MO

Re: engine light after installs

My best guesses:

1) o2 extensions can throw a "low power" code on simms & sensors

2) Shifting around the transmission for extra can loosen a plug or two.