U1301 Diagnostic Trouble Code Discussion for March 2012
Class 2 Data Line Short To Voltage
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| Help Request | Posted | |
| 2001 Saturn SL 1.9L Poor Idle Quality, Stall, Poor Fuel Economy VIN: 1G8ZF52871 U1301: Class 2 Data Link Circuit High Input. Customer complaint of getting bad gas mileage and car sounds louder than usual. Scanned computer and saw the O2 code so I checked data and O2 seems to want to stay on the rich side. Only seldom did it get below .4. I also noticed the car would not go into clos... |
March 26, 2012 |
