Question about Check engine light - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Alain · 03-10-2011, 03:23 PM

Quote:

Originally Posted by gmwheels

i talked to the sales rep at SLP yesterday and he told me that when you install the longtube headers you will get a CEL come on and will have to get a tune to turn off the rear 02 sensor, but where i live there is no place to get a tune so i'm not sure what to do now.

talk to someone at Janetty. There is no places by me that i can take my car to tune it so i'm getting a mail tune from Janetty.

Quote:

Originally Posted by MudderFinger

You will be happy with the tune. Mine had the light coming on and it was setting the code for the the front O2 sensors not switching because of the LT headers. Jannety tune will disable the front O2 sensor and it will never be a problem again. My CEL would go off about every two to three days, the onstar folks said it would after about seven start ups with full cool down and warm ups. So it is normal for it to see the switching come back and then turn off the light. Also if you have a L99 the remote start will not work if the CEL is on.

oh ok, so that's why the light disappeared. it's been off for about two days now. the tuner is getting delivered today so hopefully by tomorrow the car will have the new tune

fldrummer · 03-10-2011, 03:38 PM

Quote:

Originally Posted by gmwheels

i talked to the sales rep at SLP yesterday and he told me that when you install the longtube headers you will get a CEL come on and will have to get a tune to turn off the rear 02 sensor, but where i live there is no place to get a tune so i'm not sure what to do now.

Like Alain said, get an SCT tuner and tunes for life from Janetty or, if you have a PC laptop, buy a power-flash cable and software from Vector Motorsports, like I did, and get free tune updates for life from them. I believe both have scanners that allow you to scan and clear codes as well. I know Vector's also lets you do a scan as you drive and export it to an Excel table to review; not sure how the SCT's works though (?).

gmwheels · 03-11-2011, 11:28 AM

so is your warranty void by doing all this?

Alain · 03-11-2011, 11:38 AM

Pretty much once you tune the car your you put your warranty in jeopardy. You can always go back to the stock tune but GM will still be able to tell you tuned the car. A lot of warranty work depends on what kind of relationship you have with your dealership. If they are dicks then you're screwed !

IROCanSS · 03-11-2011, 11:42 AM

Lots of things can trigger the light but they usually reset but it will come back. Just get it tuned. It will run WAY better after.

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03-11-2011, 11:28 AM	#17
gmwheels Drives: 2010 2SS RS black with IOI Join Date: Nov 2009 Location: British Columbia Canada Posts: 98	so is your warranty void by doing all this?

03-11-2011, 11:38 AM	#18
Alain Drives: 2016 Challenger Hellcat, 2018 ZL1LE Join Date: Dec 2009 Location: Northern NJ Posts: 3,003	Pretty much once you tune the car your you put your warranty in jeopardy. You can always go back to the stock tune but GM will still be able to tell you tuned the car. A lot of warranty work depends on what kind of relationship you have with your dealership. If they are dicks then you're screwed !

03-11-2011, 11:42 AM	#19
IROCanSS Account Suspended Drives: 89 IROC 350 Join Date: Mar 2009 Location: Back roads, southern Ohio Posts: 12,504 View My Garage	Lots of things can trigger the light but they usually reset but it will come back. Just get it tuned. It will run WAY better after.