Hey guys, I'm back again.
I tried to smog my 60 a while back and it failed for high HC. I noticed a misfire from 1200 and up, gets the worst around 2000 to 2200. I'm fairly sure thats what's getting me. I started out by getting a new coil, wires, cap, rotor, plugs and air filter. Checked the timing and its where it should be. I have also replaced half the vacuum lines in the engine bay (didn't buy enough initially and ran out part way through). I have been going through the emissions FSM the last few weeks as time allowed and have had no luck. I was thinking the deceleration fuel shutoff system was the culprit, as pinching the line from the vacuum switch makes no difference in the misfire, but all the components check out fine. I am lost as to what could be causing this misfire. Any ideas?
Kyle
I tried to smog my 60 a while back and it failed for high HC. I noticed a misfire from 1200 and up, gets the worst around 2000 to 2200. I'm fairly sure thats what's getting me. I started out by getting a new coil, wires, cap, rotor, plugs and air filter. Checked the timing and its where it should be. I have also replaced half the vacuum lines in the engine bay (didn't buy enough initially and ran out part way through). I have been going through the emissions FSM the last few weeks as time allowed and have had no luck. I was thinking the deceleration fuel shutoff system was the culprit, as pinching the line from the vacuum switch makes no difference in the misfire, but all the components check out fine. I am lost as to what could be causing this misfire. Any ideas?
Kyle