cel flashing after being cleared
OK i bought my car like 3 weeks ago and the check engine light was on. so i brought it to my friends shop and we checked it and there were three speed sensor codes and 2 o2 sensor codes. but not for emissions just high low voltage. we cleared it twice and then it started flashing. now i fixed the 2 sensors and we cant clear the codes, i looked it up and it says that if the light is flashing it has a short in the obd2 harness, but why would it just get one? we didn't touch anything.