Very good. My Nissan Bluebird 2006 with HR15 engine, has random misfire. I can feel the engine shakes by touching it in the idle. Coils and plugs are new, installed 4 months ago. My mechanic checked and they are good condition. Still the car is misfiring and little shaking during idle, rough idle. I can feel the car takes longer to get speed, and feeling like it has 30% less power. OBD scanner showed P0300 one time, but went away itself. But still misfiring. Any solution?
I would start by using all new OEM coils and spark plugs. Too many aftermarket parts on the market that is messing with these cars. Then take it from there. I don't think it's a compression issue because it's random.
Very good. My Nissan Bluebird 2006 with HR15 engine, has random misfire. I can feel the engine shakes by touching it in the idle. Coils and plugs are new, installed 4 months ago. My mechanic checked and they are good condition. Still the car is misfiring and little shaking during idle, rough idle. I can feel the car takes longer to get speed, and feeling like it has 30% less power. OBD scanner showed P0300 one time, but went away itself. But still misfiring. Any solution?
I would start by using all new OEM coils and spark plugs. Too many aftermarket parts on the market that is messing with these cars. Then take it from there. I don't think it's a compression issue because it's random.