01 S80 T6 O2 & Fuel Trim codes - Volvo Forums - Volvo Enthusiasts Forum

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Old 07-19-2013, 01:47 PM
Junior Member
Join Date: Jul 2013
Posts: 1
Default 01 S80 T6 O2 & Fuel Trim codes

Transmission was replaced because the car had a blown tranny upon purchase. The motor & Engine were pulled from the top instead of just the transmission from the bottom. Transmission shifts great.

Car starts fine with no issues. After a while the car starts to stumble, and run rough seems like once the engine warms up. Front driver side O2 Sensor was replaced but still the same issue. Been getting a variety of codes that are o2 and fuel trim related. Someone mentioned a "Fuel readapt" but didn't mention how to do it.

Any idea what it could be? Haven't found any vacuum leaks... also intermittently the passenger side cat get red momentarily and then just goes back to normal.

P0056 - Consistently shows up.
P0156 - Consistently shows up.

P0154 - Intermittently shows up.
P1181 - Intermittently shows up.
P1175 - Intermittently shows up.
P1172 - Intermittently shows up.
P0134 - Intermittently shows up.
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Old 07-23-2013, 11:02 PM
Former Sponsor
Join Date: Feb 2013
Posts: 86

You can try an ecu relearn and see if it helps your problem.

Why does the catalytic converter turn red hot? - Yahoo! Answers

P0056 HO2S Heater Control Circuit Bank 2 Sensor 2 OBDII Engine Light Trouble Code | Engine-Codes.com
P0156 O2 Sensor Circuit Malfunction Bank 2 Sensor 2 OBDII Engine Light Trouble Code | Engine-Codes.com
P1181 Fuel Delivery System Malfunction High OBDII Engine Light Trouble Code | Engine-Codes.com
P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
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Old 07-23-2013, 11:02 PM

fine, p0056, p0154, p0156, runs, s80, t6, volvo

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