Mulitple Codes
08-09-2005, 10:01 AM
#1
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Mulitple Codes I just went to Autozone because my SES light comes on a lot and power seems low sometimes. I get the following codes:
PO131
PO137
PO151
PO157
I am wondering if I would be better off getting new front O2 sensors or just getting the codes cleared? The codes indicate that all 4 O2 sensors are bad
I am going to check my fuses to see if that may be the culprit. Thanks.
PO131
PO137
PO151
PO157
I am wondering if I would be better off getting new front O2 sensors or just getting the codes cleared? The codes indicate that all 4 O2 sensors are bad
I am going to check my fuses to see if that may be the culprit. Thanks.
08-09-2005, 10:30 AM
#2
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Those codes DO NOT indicate the sensors are bad. They indicate that low voltage was being reported from the sensors for an excessive period of time. Low voltage is an indicator of lean mixture. So all four sensors having low voltage for a long period of time indicates a very lean mixture, which also explains the low power.
Next time its acting up, put a fuel pressure gauge on it and see what it does. It should be about 55 PSI, even under load.
Next time its acting up, put a fuel pressure gauge on it and see what it does. It should be about 55 PSI, even under load.
