Question about Cadillac STS
I have a 2001 Cadillac sts. I ran a code reader on it and it came up with po308 01/02 and po308pd 01/01 can you tell me what those codes mean please.
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Posted on Jan 02, 2017
P0442--Evap Emission Sys. leak detected small leak
P0455--Evap Emission sys. leak detected gross leak
P0456--Evap Emission Sys. leak detected very small leak
Posted on Jun 11, 2008
Is your gas cap tight? check it, these codes indicate a large leak in the fuel evaporative emission recovery system at the gas tank
Posted on Dec 25, 2008
First thing you have to do is list all the codes, because some some might be stored for a long time. Pushing the OFF and WARM buttons together and holding will ghive you all the stored codes. Then press OFF and HI together to clear all codes. Hold and wait for bars or 0's. Now start your car and let it get up to proper operating temps. Take car for aride that aincludes all phases of driving including highway speeds. Observe SERVICE ENGINE LIGHT for coming on . Assuming it does , repeat steps previously provided, read codes stored and repair accordingly. If need be contact me with new codes and I will try to assist you.
Posted on Mar 16, 2009
P0157 Oxygen Sensor Circuit Low Voltage (Bank 2 Sensor 2)
I would try replacing the Oxygen sensor, then clear the code.
The O2 sensor would be the after the catalytic converter ( sensor 2) on the exhaust pipe of the number 2 cylinder uses ( bank 2).
Posted on May 18, 2009
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