View Full Version : o2 sensor resistance?
94x4 blazer
03-31-2012, 01:15 AM
does anyone know how much resistance an O2 sensor has? im trying to remove my cat and not run an engine code, im pretty sure that if i can find out what the resistance level on an O2 i can just go buy a 3 dollar resistor and wire it in instead of buying a 50 dollar O2 sensor simulator that isnt going to work. i drive a 94 blazer with a 5.7 this is still an OBD1 vehicle if that matters at all.
leave the O2 sensor in, it will run better
1988 GMC 355
04-02-2012, 02:08 PM
You need to have a bung welded in to run the sensor, the truck will barely run without it
cvpsk8er630
04-02-2012, 02:37 PM
the o2 sensor if it is before the cat needs to be there for the truck to run. if its after the cat... then that sensor can be replaced with an o2 simulator. search google there are plenty
winfred
04-08-2012, 08:29 AM
pre cat o2 needs to be there, post cat o2 can usually be fooled with one or two spark plug fowlers to space it out of the exhaust stream, you may need to drill out the fowler to get the sensor to fit inside, you just need to make it blind
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