Yes you should feel the o2 sensor warm up by touching the base of it we're it goes in to the exhaust.
Yes you should feel the o2 sensor warm up by touching the base of it we're it goes in to the exhaust.
Last edited by Stroked 388; 11-23-2018 at 05:30 AM.
Check that you have the 2 wires the same color wired as the heater or to power and ground. The 3rd wire that is another color is the sensor output. I'm talking wires from the actual sensor here, not the pigtail the sensor plugs into.
Anyone have a part number for that 3 wire O2 sensor? Looking to change mine to heated.
Edit: never mind I saw the Op had a link.
Current: '91 1500 Suburban (3rd owner), 350 TBI, 700R4
TBI system: RV Morse Bored TB - Matched FIs - Adjust. fuel psi regulator - Injector pod spacer - RV Morse Powerplate - Hypertech "salad bowl"
Full write-up here
Follow the build here
Mine is 4 wire 2 hots 1 signial and a ground is that the one your referring to ?
ACDelco ASF-74 is a factory 3 wire O2 sensor for a 1994 S10 4.3 Liter.
https://www.ebay.com/itm/ACDelco-AFS...UyV:rk:13:pf:0
dave w
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