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Please help lost on a cts
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andrew03cts
New User
Jul 19, 2012, 7:37 PM
Post #1 of 7
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Please help lost on a cts
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I have a 03 cadillac cts 3.2 and i have a 02 sensor problem. I have swapped bank 1 and bank 2 and same problem bank 2 gets high voltage with 1 sensor .6 to 1.08 short term fuel trim is -25 and swap sensors and it will get no activity .440 short term fuel trim 0.0 but both sensors read right on bank 1 only have a problem with bank 2 wiring is good also swapped the injectors thinking maybe leaking but still the same
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 20, 2012, 3:12 AM
Post #2 of 7
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Re: Please help lost on a cts
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OK, back up. What is the exact code number you are getting before and after you did your swapping?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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andrew03cts
New User
Jul 20, 2012, 8:20 AM
Post #3 of 7
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p0152 with 1 sensor and p0154 p0050 p0155 with the other sensor both sensors read perfect in bank 1
(This post was edited by andrew03cts on Jul 20, 2012, 8:27 AM)
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Hammer Time
Ultimate Carjunky
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Jul 20, 2012, 8:51 AM
Post #4 of 7
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Re: Please help lost on a cts
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You're showing a short to power and a heater issue. The circuit will have to be troubleshooted thoroughly. It could be a wiring problem, shorted sensor or bad PCM.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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andrew03cts
New User
Jul 20, 2012, 9:09 AM
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I also unplugged the harness side of the 02 and both read the same volts with a volt meter when i got the car the 02 wire and crankshaft position sensor were burnt so replace the sensor and rewire the 02 soldered it and every thing. why would 1 sensor say high voltage and not get the heater codes
(This post was edited by andrew03cts on Jul 20, 2012, 9:16 AM)
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Hammer Time
Ultimate Carjunky
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Jul 20, 2012, 9:27 AM
Post #6 of 7
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Re: Please help lost on a cts
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What's one have to do with the other?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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andrew03cts
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Jul 20, 2012, 9:33 AM
Post #7 of 7
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Re: Please help lost on a cts
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Should both plug have the same voltage when the 02 sensors are unplugged
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