Oxygen sensor

2003 PONTIAC VIBE

200,000 MILES • 1.8L • 4 CYL • 2WD • MANUAL

SBSWAN1228

MEMBER
2 POSTS

I’ve replaced my bank 1 sensor 1 twice now, cleared code both times and within twenty four hours the code is back on again. Used my multi-meter and everything is reading the correct oms and volts.

Apr 11, 2019 at 9:32 AM

SCGRANTURISMO

✓Experienced Mechanic
4,897 POSTS

Hello,

What is/are the Direct Trouble Code (DTC)(s)?

Thanks,
Alex
2CarPros

Apr 11, 2019 at 12:53 PM

SBSWAN1228

MEMBER
2 POSTS

P0135.

Apr 12, 2019 at 6:29 AM

SCGRANTURISMO

✓Experienced Mechanic
4,897 POSTS

Hello, the problem is going to be in the wires going to the heater in the O2 Sensors heater. They should be the two black wires. Double check the connector to make sure that there is no damage or corrosion on it. If the connector is okay follow the two heater wires back and look for broken or fraying on them. I have included a description of the DTC, connector end views and wiring diagrams in the diagrams down below. Please go through the information and check things out and get back to us with what you find out.

Thanks,
Alex
2CarPros

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