CEL On
09-02-2014
#1
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CEL On
My CEL light came on the other day in my 96 Ex so I had it checked out and it puled the code p0453 Which is EVAP System Pressure Sensor/Switch Circuit High... Need some help on what to replace.
09-02-2014
#2
If you think a good mechanic is expensive, try hiring a bad one
Re: CEL On
High voltage was detected in the fuel tank pressure sensor circuit.
My first guess would be a wiring problem. Got mice? Rodents chewing wires seems to be a huge problem in my locale.
I would have already had a scanner on it that can read and display live sensor data to see what value that sensor is reading.
FTP: 3 wire sensor: There should be a ground, a 5v, and a signal return.
Atmospheric pressure should give a reading of about 2.5v.
Note there are 3 different harness junctions these circuits pass through, so that makes about 15 different connections to possibly cause trouble LOL.
I'll suggest a wire diagram and voltmeter if you have to trace wiring.
My first guess would be a wiring problem. Got mice? Rodents chewing wires seems to be a huge problem in my locale.
I would have already had a scanner on it that can read and display live sensor data to see what value that sensor is reading.
FTP: 3 wire sensor: There should be a ground, a 5v, and a signal return.
Atmospheric pressure should give a reading of about 2.5v.
Note there are 3 different harness junctions these circuits pass through, so that makes about 15 different connections to possibly cause trouble LOL.
I'll suggest a wire diagram and voltmeter if you have to trace wiring.
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