Does the oxygen sensor need to be hooked up for a smog pump to work?
No,but for fuel efficiency it is best. All the emission devices have a purpose and all work together for the good of the engine.
Camaro 1986 v8 TPI cranks but wont start spark is ok but no fuel pump is not started by the ECU how to check reley?
I get no fuel to the injectors don't hear the pump prime and if I connect power directly to the pump and get pressure to the fuel rails, no injectors are opening when I crank,,, I am getting sparks, how can I check if it is the ECU broken or the big fuel relay at the firewall?,, or is there some other problems, this engine was rebuilt by previous owner and he put the electiric…
What all can keep the fuel pump from priming AND running Except the ECMrelays and fuel pump on a 92 S10 conversion By conversion I mean that I went from a 2.5 to a 4.3.?
it is located behind the power steering pump. You need to remove the power steering pump to get to it which requires removing the engine mount next to it to get the bottom bolt out of the power steering pump. The sensor is directly behind the power steering pump. You can follow the cable that goes behind the pump. It is the only one there.