
1998 Porsche Boxster 2.5L Poor Idle Quality, MIL Lamp on
I have a Boxter with 4 o2s codes PO131,PO137,PO151,PO157 all reading low voltage. I disconnected all o2s and ohmed them out. My result on those were all read OFL. According to alldata they test good. Then I tested then ecm and wiring harness. I checked voltage...
FIX posted 8/4/2009
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Message Closed w/FIX
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VIN | WPOCA298XW |
Engine | 2.5 L / 6 cyl / GAS |
Trans | 5-speed Standard |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, MIL Lamp On |
Occurs | Always |
Trouble Codes
P0131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage |
P0137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage |
P0138 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage |
P0151 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage |
P0157 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage |
P0158 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit High Voltage |
Message Closed w/FIX
Vehicle Data
1998 Porsche Boxster
VIN | WPOCA298XW |
Engine | 2.5 L / 6 cyl / GAS |
Trans | 5-speed Standard |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, MIL Lamp On |
Occurs | Always |
Trouble Codes
P0131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage |
P0137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage |
P0138 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage |
P0151 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage |
P0157 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage |
P0158 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit High Voltage |