Your 300 codes are for misfires (300 is random misfire, and each one after that is pointing to a specific cylinder 301 = misfire cyl 1, etc). 1128 is for an O2 sensor, as is P0140 (no activity). 1255 is the CTS short to ground.
What engine do you have? Miles? Anything going on with the car?
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n00b
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- Aug 10th, 2011
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golf code of p1255, p0300,p0301,p0302,p0303,p1128 and p0140
01-24-2012 12:45 PM
#1
I had these codes after starting the engine. Was wondering should i go after the coolant sensor or the o2 sensor or something else. I've read some conflicting information about what would cause the issue. Some said the coolant sensor but ive read that the computer has a back up input for mixture scheduling. I have also read that the 02 sensor(post converter) is not used for mixture either. If this was a br710 on a gulfstream, i would have it wrapped up. Car engines tend to be more difficult to troubleshoot.
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Member
- Join Date
- May 10th, 2005
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- Cary, NC
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- 3,689
- Vehicles
- '03 BMP 20th GTI, '84 TD Jetta
01-24-2012 12:47 PM
#2
The project - '84 Jetta 1.6TD, 186k+, fully rebuilt, Giles IP and injectors, 2.5" custom exhaust, 51mpg
Originally Posted by TM87
Hers - '03 BMP 20thAE GTI, 125k, all stock...for now
His - '01 Jetta TDI, 126k. Now has 3 pedals, as it should!
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n00b
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01-24-2012 01:10 PM
#3
Its the AEG 2.0 engine before october. It has 105,000 on the engine.
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n00b
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- Aug 10th, 2011
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