Unplugging the O2 Sensor - will it cause damage if it is temporary?

1.8-liter VVTL-i (2ZZ-GE) and VVT-i (1ZZ-FE) engine, transmission, exhaust, intake, and performance tuning discussions
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idaho03vibe
Posts: 33
Joined: Mon Jan 21, 2008 3:15 am

Unplugging the O2 Sensor - will it cause damage if it is temporary?

Post by idaho03vibe »

I just warmed up my vibe (-15 in Idaho) after unplugging the 02 sensor. It runs better without the O2 sensor plugged in.Will this damage my car if I drive it for a few days without it plugged in?My Vibe sounds like it is lobingYou know like when you install a meaty cam in a small block chevy. I installed a RV cam in my small block chevy and my vibe sounds kinda like it only quieter.I want to thank everyone for their input. I really appreciate it.
ragingfish
Posts: 11022
Joined: Tue Oct 15, 2002 8:23 am

Re: Unplugging the O2 Sensor - will it cause damage if it is temporary? (idaho03vibe)

Post by ragingfish »

Yes, you can damage the engine. Don't do it.
YES!I still visit GenVibe periodically. I have not forgotten about my "original" family over here!

2009 PONTIAC G8
3.6L V6 (256 HP @ 6300 rpm, 248 ft-lbs. @ 2100 rpm)
Lancer
Posts: 1365
Joined: Mon Jul 15, 2002 3:53 pm

Re: Unplugging the O2 Sensor - will it cause damage if it is temporary? (idaho03vibe)

Post by Lancer »

You can unplug the second O2 sensor without any problems. That one tells how your emissions are doing. You'll ONLY get a check engine light. I WOULDN'T undo the first O2 sensor. That one helps the ecu figure out your air/fuel ratio. So, be carefull with that one! Engine could go breakie
18" Enkei's & Kumho Ecsta's-------UNICHIP Eibach Sport springs----------Morroso oil pan Injen CAI & Oil cap----------Stage 2 FI cams Custom Exhaust-----------TRD Supercharger AEM alt. pulley -------JSP Carbon Fiber hood 380cc injectors----DC Sports ceramic header
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