knock sensor?

[legacy2]

when i started the car it right away was running almost as if it were missing on a cylinder, it was shaking the whole car but then it just quit and was running smooth and about a minute later it was running really rough again and it kept doing this smooth, rough, smooth thing any help?

[THAWA]

do you have a code fro the knock sensor?

[legacy2]

just checked it and i do, also for the air flow sensor

[irishsetter]

Could be a bad MAF. It sound like your air fuel ratio is diving in different directions. Do you have it gaged?

[Bheinen74]

The MAF rarely go bad, but they do get dirt on them causing a code to be sent to the ECU. They can be cleaned of the dirt. try cleaning the MAF sensor. be VERY careful to not use much pressure on it. Use an alcholol cotton swab cloth, just drag the swab over it with no real pressure. get all around it all sides.. Again, be very careful with taking it out of the intake tube chamber, and be very careful with the fragile wire winding, cause it can break if you use too much pressure.

[Legacy777]

Brake cleaner also works for cleaning the MAF sensors