02 Sensors New - Error Codes - C10 Swap Help?
07-12-2022, 08:33 PM
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02 Sensors New - Error Codes - C10 Swap Help? Howdy, long time lurker but now I have my first LS! (10 years too late)
First post. And yes I read about 20 threads on this issue, not that I can read.
Gen 3 5.3 2005 Suburban LS in 71 C10 swap (neat)
BP Automotive Harness
Mild cam
Shorty Headers, full exhaust.
Bank 2 O2 sensor reads 4.5 volts always never moves
Bank 1 O2 Sensor reads around 8 volts bounces around.
I have three new O2 sensors, one is Bosch. Swapped all three to different side same results, no matter what.
Harness has 12v on both banks with good grounds.
All three have heater codes.
13.5 inches of Vacuum
Runs rich, stumbles, idle at 650 rpm, also has lean burn (watery eyes test) smells awful.
Off idle stumble.
Cleared codes 10 times comes right back. Drank tequila, still throws codes.
PO Codes: 136,141,155,161 O2 heater
443, 449, 452 EVAP ( dont have that)
First post. And yes I read about 20 threads on this issue, not that I can read.
Gen 3 5.3 2005 Suburban LS in 71 C10 swap (neat)
BP Automotive Harness
Mild cam
Shorty Headers, full exhaust.
Bank 2 O2 sensor reads 4.5 volts always never moves
Bank 1 O2 Sensor reads around 8 volts bounces around.
I have three new O2 sensors, one is Bosch. Swapped all three to different side same results, no matter what.
Harness has 12v on both banks with good grounds.
All three have heater codes.
13.5 inches of Vacuum
Runs rich, stumbles, idle at 650 rpm, also has lean burn (watery eyes test) smells awful.
Off idle stumble.
Cleared codes 10 times comes right back. Drank tequila, still throws codes.
PO Codes: 136,141,155,161 O2 heater
443, 449, 452 EVAP ( dont have that)
Last edited by 40MikeMike; 07-12-2022 at 08:40 PM. Reason: added codes
