How do you bypass o2 sensor on 1995 Jeep Grand Cherokee?

Answer 1

It is not a good idea to bypass the O2 sensor on any car . They use it for calibration of the fuel injection . If you bypass it you run serious risk of damaging your motor , by lean conditions that would create detination and eat pistons and valves . Or it could go very rich and the fuel economy will drop dramatically.

Answer 2

HO2S (A/F) Sensor Heater Control Circuit Low (Bank 2 Sensor 1)

symptoms
Other than the MIL light illuminating you may not notice any performance issues.

cause
A short in the O2 sensor heater circuit or the sensor itself
A faulty O2 sensor heater
Wiring or connectors are broken or frayed to the sensor or relay
Bad PCM or ECM

The fix
Correct wiring short or loose connector found in inspection.
and/or
Replace the bank 2 sensor 1, O2 sensor
Replace PCM if circuit has failed and no wiring issues present, good O2 sensor

Answer 3

No, it is needed for spark and fuel timing.

Answer 4

No. The crankshaft position sensor is required for the engine to start and run. The engine computer uses it for fuel and ignition timing.

Answer 5

you dont.