Hi,
I need your help to figure out why my engine is sputtering for 15-20 minutes when it is cold. It does start ok when cold and After that is just running ok without problems. The engine misses are random and I can correlate them with a cylinder , have no timing but are felt more when I accelerate when shaking occur.
I changed the gas , air filters, spark plugs rotor cap but it did not help. Is this an electrical problem or engine related?
Any ideas?
Thank you,
Chris