Q: Problem started when s2 wires shredded P0139, P0140, P2237, P2626 i changed both sensors, 12v from harness s1 and 6v on s2.

asked by

Pj S

on March 10, 2018

Hey guys I need some help!

I have a problem with my o2 sensors. I have a 2.5T tuned by UM with the pro maf. C2 intake manifold, 5858 CBB Precision, 550cc injectors...list goes on.

Car was running perfect up until I went over a speed bump and ripped up the wires for my o2 sensor bank 1 sensor 2.

I got a code while driving home. I noticed the f21 (10 amp) fuse blew out for the o2 sensors. Changed the o2 sensor (OEM) and the fuse. Car is running rich as hell (AFR 10.1 on idle) and i'm still getting some codes related to the sensors.

-Both sensors have resistance when i checked them with the multimeter.

-I'm getting 12v from the harness leading to the sensors and on the fuse.

Please help me I can't figure this out!!! Thanks!!!

B1 S1 Voltage too Low / Air Leakage / Sample Error P2414 - 008

B1 S1 P2237 - 008 - Pump Current Open Circuit - MIL ON

B1 S2 P0140 - 004 - No Activity - Intermittent - MIL ON

B1 S2 P0139 - 004 - Response too Slow

My car has a manual transmission.

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Q: Problem started when s2 wires shredded P0139, P0140, P2237, P2626 i changed both sensors, 12v from harness s1 and 6v on s2.

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