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02-22-2007, 08:08 PM #1
- Join Date
- Aug 2005
- Location
- Miami, FL
- Age
- 43
- Posts
- 62
What do these codes mean. PLEASE HELP
I have a 2002 WS6 with a procharger and some mods. My service vehicle light and my service engine soon light are on. I hooked up my predater to read the codes and this is what it gave me.
1. PO135 O2S Heater Circuit
Bank 1-Sensor 1 Malfunction
2. PO140 O2S Circuit
Bank 1-Sensor 2 No activity detected
3. P1133 HO2S Insufficient Switching
Bank 1-Sensor 1
Does anyone know what i can do to get rid of those annoying lights on my dash. Im not sure what these codes mean. Thanks. Any help is appreciated.
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02-22-2007, 08:45 PM #2
1- it means ur 02 sensor isnt heating properly.
2-the post-cat 02 sensor is not reading anything
3- i'll have to look that one up, i forget what it means. maybe its not switching lean/rich fast enough? someone will answer it.
u probably need to replace bank 1 sensor 1 and bank 1 sensor 2
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02-22-2007, 08:49 PM #3
- Join Date
- Aug 2005
- Location
- Cape Coral, FL
- Age
- 39
- Posts
- 3,100
Mystic Teal- 99 Trans Am & 01 CBR 929
2. PO140 O2S Circuit
Bank 1-Sensor 2 No activity detected
may not be connected...
sensor one may just be bad.. do the live data feature on your programmer and see what millivolts it reads for that sensor
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02-22-2007, 10:23 PM #4
1 and 3 are common codes with headers, do you have headers? Bosch sensor 13111 are supposed to help with this problem.
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02-23-2007, 06:40 AM #5
- Join Date
- Oct 2006
- Location
- Oklahoma City
- Posts
- 282
00 LS1, WS6, V8 Gremlin- 96 & 98 GTPs, 64 'Cuda
PO135 O2S Heater Circuit
Correct that and the others will probably go away.
Get under there, inspect the connectors and wiring going to your sensors.
If all looks OK unplug then reconnect them, could be oxidation on the contacts.
Let us know and we'll go from there.
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02-23-2007, 05:34 PM #6
- Join Date
- Aug 2005
- Location
- Miami, FL
- Age
- 43
- Posts
- 62
Thanks. I'll check it out and let you guys know what i found.
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