Diablo remove check engine after headers? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

frenchsquared · 12-09-2018, 09:39 AM

I just ordered AR Headers for the Z28 and if you read my other post you know I am looking for a shop to do a cam and tune. I plan to do the headers my self and know that removing the cats will trigger a CEL. I have a Diablo tuner for my Sierra and I am wondering if I can use that to remove the CEL while waiting to get into a shop for the tune.

Anyone know if the Diablo will do it and how?

2SSRS@Gen5diy · 12-09-2018, 09:48 AM

Are you going to us the 4 02 or only 2?

frenchsquared · 12-09-2018, 10:02 AM

Quote:

Originally Posted by 2SSRS@Gen5diy

Are you going to us the 4 02 or only 2?

oh... so 2 before and 2 after.

It seems the two after are pointless now and I doubt the headers have a spot for them.

2SSRS@Gen5diy · 12-09-2018, 10:21 AM

Sent I run the kooks with there high flow cats, so I used all 4 O2, and for the rear 2 we added O2 extenders, and where Abel to not tune the car, and doing it this way we had no CEL on at all, car runs fine all the time.

frenchsquared · 12-09-2018, 10:25 AM

Quote:

Originally Posted by 2SSRS@Gen5diy

Sent I run the kooks with there high flow cats, so I used all 4 O2, and for the rear 2 we added O2 extenders, and where Abel to not tune the car, and doing it this way we had no CEL on at all, car runs fine all the time.

Why did you keep cats? Do you have emissions testing?
I don't see any reason to spend the extra money on cats. Plus I like not having them, kinda flipping the finger at California.

2SSRS@Gen5diy · 12-09-2018, 10:59 AM

Quote:

Originally Posted by frenchsquared

Why did you keep cats? Do you have emissions testing?
I don't see any reason to spend the extra money on cats. Plus I like not having them, kinda flipping the finger at California.

No there are no emission testing here, but I don't like the smell you get from a car with out them, yes you give up some but not a lot of HP to cats but to me it's a small loss.

12-09-2018, 09:39 AM	#1
frenchsquared Drives: 15 Z28, 01 Corvette, 96 Corvette Join Date: Dec 2016 Location: Colorado Posts: 863	Diablo remove check engine after headers? I just ordered AR Headers for the Z28 and if you read my other post you know I am looking for a shop to do a cam and tune. I plan to do the headers my self and know that removing the cats will trigger a CEL. I have a Diablo tuner for my Sierra and I am wondering if I can use that to remove the CEL while waiting to get into a shop for the tune. Anyone know if the Diablo will do it and how? __________________ 2018 Sierra RCSB \| 2015 Z28 Camaro \| 1989 B2200 with a 327 \| 1996 LT4 Z51 Corvette \| 1973 427 Nova

12-09-2018, 09:48 AM	#2
2SSRS@Gen5diy Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008 Location: By the lake in AZ Posts: 15,719 View My Garage	Are you going to us the 4 02 or only 2?

12-09-2018, 10:21 AM	#4
2SSRS@Gen5diy Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008 Location: By the lake in AZ Posts: 15,719 View My Garage	Sent I run the kooks with there high flow cats, so I used all 4 O2, and for the rear 2 we added O2 extenders, and where Abel to not tune the car, and doing it this way we had no CEL on at all, car runs fine all the time.