Can O2 sensor cause vtec not to switch over?
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Junior Member
Joined: Jan 2007
Posts: 218
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From: Birmingham, AL., U.S.A.
Can O2 sensor cause vtec not to switch over?
My buddy has a 92 civic hatchback with a d16z6 and wont's to know if this is the problem we put a new t/b on it and cleaned the vtec solenoid out and still no vtec. and there is only one check engine light and it's the o2 sensor. So what could the problem be? I think the TPS is good on that new t/b not sure tho!
Technical Hero
Joined: May 2002
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From: Charlotte, NC, 28227
Re: Can O2 sensor cause vtec not to switch over? (1clean_ Ej)
Honda-Tech Member
Joined: Aug 2005
Posts: 874
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From: SB County
Re: Can O2 sensor cause vtec not to switch over? (HondaPartsHero)
it sure can! your vehicle must be in Closed loop to run Vtec. Here are the three things you need to be in closed loop:
1. O2 Sensor toggling
2. Coolant Temp Sensor
3. Time. Theres a Ecu "clock" and it has to be ready.
1. O2 Sensor toggling
2. Coolant Temp Sensor
3. Time. Theres a Ecu "clock" and it has to be ready.
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