throwing cel two codes
01-29-2007, 08:49 PM
#1
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throwing cel two codes
im throwin 2 codes one is a p0141 02 sensor heater circuit malfuntion
the second code is a p1457 evap emission control system leak detected
the first i think is just the fuse is blown but i dont know where the fuse is....need help fast...oh yeah its a 99 gsr
the second code is a p1457 evap emission control system leak detected
the first i think is just the fuse is blown but i dont know where the fuse is....need help fast...oh yeah its a 99 gsr
01-30-2007, 02:45 AM
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Re: throwing cel two codes
your o2 sensor gets its power from the ecu so no its not the fuse. replace your o2 sensor...
Last edited by RRoach; 01-30-2007 at 02:48 AM.
01-30-2007, 02:09 PM
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Re: throwing cel two codes
The heater coil is probably gone bad in your O2. You can check it be disconnecting the O2 and checking for resistance.
There should be four wires, two for the ECM(power and ground) then the other two for the heater. Unplug the O2 and put an ohm meter on the two pins for the heater on the O2 sensor. Compare your resistance to what Acura says is good. If you see out of range or no resistance at all then you know it's the O2 and not the wiring.
A p1457 is for the electrical circuit that controls the purge or vacuum vent valve. Here you would disconnect the connector and see if you have power and ground through the wires. Also check for continuity between the connector and the ECU.
There should be four wires, two for the ECM(power and ground) then the other two for the heater. Unplug the O2 and put an ohm meter on the two pins for the heater on the O2 sensor. Compare your resistance to what Acura says is good. If you see out of range or no resistance at all then you know it's the O2 and not the wiring.
A p1457 is for the electrical circuit that controls the purge or vacuum vent valve. Here you would disconnect the connector and see if you have power and ground through the wires. Also check for continuity between the connector and the ECU.
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