Possible to have mods and no CEL?

Nissan 350z / Nissan 370z technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
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DWilson
Posts: 42
Joined: Thu Mar 19, 2009 11:30 am
Car: Nissan 350 Z GT 2006

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Does anyone have an 06 or newer with mods and no CEL? Seems like the CEL is impossible to avoid once you have done a few mods?


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evildky
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Joined: Sat Jan 31, 2004 9:23 pm
Car: 71 240ZT, 87 300ZXN/A-T, 06 350Z GT, Tundra TRD RW
Location: Louisville, KY
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what codes are you getting?

spitalul2bad
Posts: 327
Joined: Sun Jun 08, 2008 12:25 pm
Car: Nissan 350z Roadster - REV-UP Engine
Opel Vectra C
BMW E30 6cylinder 2000cmc
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I've done a handful of mods including MREV 2 plenum, spacer, headers, injen cai, hi-flow cats, cat back exhaust, lightweight flywheel, lightweight pulley kit and more...

no CEL light

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RCAnismo
Posts: 322
Joined: Sun Jun 15, 2008 4:45 am
Car: '06 Nissan 350Z Enthusiast, '05 CBR 1000RR Repsol, '03 Jeep Grand Cherokee
Location: Covington, KY

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Same here. My mods are listed below and luckily no CEL light.

Which mod made your light come on?

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DWilson
Posts: 42
Joined: Thu Mar 19, 2009 11:30 am
Car: Nissan 350 Z GT 2006

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My father is a mechanic and he has a diagnostic computer and it says front left bank 02 sensor, which is the sensor on the header, there are sensors on the header and the cats, I have high flow cats, we changed the sensor and light still comes on. I know there is a CEL fix for the Test pipe and HFC, but how do you fix the sensor on the Header?


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