Running a 4 wire O2 sensor with 1 wire?
#1
Elite Member
Thread Starter
iTrader: (1)
Join Date: Jun 2005
Location: Pikeville, TN
Posts: 3,038
Total Cats: 27
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Anyone see a problem running a 4 wire with only the signal wire connected? I don't plan on running the 4 wire all the time, I just need to have it on there for a few days and don't feel like running power/ground to it.
#2
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I think it needs the heater circuit. I tried to test a 4-wire by connecting a voltmeter to it out of the car and using a propane torch to see it react and I got no reaction to the flame. I tested it again in the car and it worked. So I don't know if I was doing something wrong or not.
Easy to test. Plunk it into the car and run a voltmeter to see if it dithers at idle.
Cliff Knight on m.net has some information about testing and how they work on a webpage somewhere.
Easy to test. Plunk it into the car and run a voltmeter to see if it dithers at idle.
Cliff Knight on m.net has some information about testing and how they work on a webpage somewhere.
Thread
Thread Starter
Forum
Replies
Last Post
Zaphod
MEGAsquirt
47
10-26-2018 11:00 PM
StratoBlue1109
Miata parts for sale/trade
21
09-30-2018 01:09 PM
Greasyman
General Miata Chat
2
09-28-2015 10:44 AM