i can not clear some codes that have just occurred. can anyone give me some advise?
getting on the highway yesterday i got the flashing ses light. after a few minutes it remained on.
using a predator programmer the codes are
1. p0300 random/multiple cylinder misfire.
2. p1554 cruise engaged circuit high voltage
3. p1860 tcc pwm solenoid circuit
4. p0420 catalyst system bank 1 eff below theshold.
the predator could not clear these codes and disconnecting the battery did not work. slp headers and cat, intense level 1 kit with a 3. inch pulley. the car is running fine.
what could be causng these codes?
thanks
