02-02-2020, 01:25 PM | #1 |
Drives: 2012 RS - 2013 ZL1 Join Date: May 2013
Location: Naples, Fl.
Posts: 22
|
Kooks Long Tubes Catless CEL
I Need some advice from all of you that have done my mods. I have a 2013 ZL1 with a Roto-Fab CAI. Just had a set of Kooks long tubes installed without cats and had it tuned. My CEL came on. The tuner said it was the 02 sensors. We replaced them cleared the codes but the Light just came back on 😑 I’ll stop by the shop on Monday to have them check it out. Any ideas???
__________________
"CARPE DIEM"
|
02-02-2020, 01:31 PM | #2 |
Account Suspended
|
They're P0420 and P0430, right, because there are no cats on the Long Tubes. You
need the spacers or spacer mini-cats to clear that up. The REAR sensors are reading the same as the front sensors because there are no cats. The shop can't clear them away, and neither can you. They will come right back on with the readings they are getting without the cats on the car. |
02-02-2020, 02:20 PM | #3 |
fo'shizZL1
Drives: 2017 ZL1 Join Date: Aug 2017
Location: ATL
Posts: 1,376
|
Or you can also just fix it in the tune. I'm surprised the shop doesn't know how to do that.
__________________
2017 ZL1 M6 Black | Maggie 2650 // 103TB // Big Gulp // CSP LT's & Ultra Cats // JMS // Elite Ultra CC // BMR MM // BC Forged KL13
Past Rides- 2014 ZL1 M6 Red Hot | Tons of mods 2004 CTS-V M6 Silver | Many mods 1995 Corvette M6 Torch Red | A few more mods 1992 Camaro M5 White | A few mods |
02-02-2020, 02:49 PM | #4 |
Drives: 2013 zl1 vert Join Date: Dec 2018
Location: Rochester, New york
Posts: 1,048
|
Your tuner should know to turn off the rear o2 sensors. If he doesn’t know that maybe you should take it to somebody else.
__________________
22% lower/ 2.5 upper/ 2” headers/ cat delete/ x-pipe/ 2 gallon x tank/ 100-3 pump/ fic 1300/ dsx aux kit/ 103mm throttle body/ RPM 5” intake/ meth kit/ prometh lid injection/FI interchiller/ 160* stat/ ngk-7/ msd wires/ elite catch can/ tsp cam/ Che trunnions/ ported supercharger/ 1/2” lid spacer/ brick mod/BMR toe and trailing arms/ 751hp 757 tq SAE @17.3lb on a loaded dyno.
|
02-15-2020, 12:48 PM | #5 |
Drives: ZL1 Join Date: Oct 2012
Location: Talladega
Posts: 636
|
All the advise above is correct. You can program ECM to turn off the rear O2 Sensors and that will eliminate the problem right away.
|
|
|
|
|