How to check the o2 heater circuit?
Joined: Apr 2004
Posts: 33
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From: portland, OR, usofA
Re: How to check the o2 heater circuit? (fireisfun)
On the 02 sensor itself. When you switch to a wideband O2 sensor you have to install a couple of resistors from radioshack on yer ECU. bye bye light.
Honda-Tech Member
Joined: Oct 2001
Posts: 4,611
Likes: 3
From: Severn, MD
Re: How to check the o2 heater circuit? (fireisfun)
The heater is actually inside the O2 sensor itself. See how its got 4 wires coming out of it - the two blacks are for the heater element.
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