moduleunknown
Well-known member
Can anyone tell me the exact function(s) of the EGR temperature sensor on a California VR4?
I suspect it's only a functionality check, but have been unable to find any info.
The reason I ask - I've failed smog, but passed the sniffer test (with a bad EGR valve even)! The sensor in question has nothing to do with my failure, nor have I thrown a CEL. The only reason I ask is because I ordered a replacement EGR valve but received the wrong part (does not have a port for the sensor).
...and that's lead me here - wondering if I can just use this EGR valve anyway. I would imagine I could pull the sensor, wire a resistor in it's place and never see a CEL. I'm fine with that, but before I proceed I need to know if that sensor serves any other purpose than a functionality check.
Looking at the manual, I find the following:
I'd imagine the lower value/range tells the ECU we're in open loop, and the second, higher value/range reports closed loop. ...back to this resistor idea (if I did go that route), what range would I want the ECU to see for the rest of its life?
Or perhaps I just keep the car off the road and wait even longer for the right EGR valve. /ubbthreads/images/graemlins/banghead.gif
I suspect it's only a functionality check, but have been unable to find any info.
The reason I ask - I've failed smog, but passed the sniffer test (with a bad EGR valve even)! The sensor in question has nothing to do with my failure, nor have I thrown a CEL. The only reason I ask is because I ordered a replacement EGR valve but received the wrong part (does not have a port for the sensor).
...and that's lead me here - wondering if I can just use this EGR valve anyway. I would imagine I could pull the sensor, wire a resistor in it's place and never see a CEL. I'm fine with that, but before I proceed I need to know if that sensor serves any other purpose than a functionality check.
Looking at the manual, I find the following:
I'd imagine the lower value/range tells the ECU we're in open loop, and the second, higher value/range reports closed loop. ...back to this resistor idea (if I did go that route), what range would I want the ECU to see for the rest of its life?
Or perhaps I just keep the car off the road and wait even longer for the right EGR valve. /ubbthreads/images/graemlins/banghead.gif