Hi all. Wifes car has developed a low speed misfire/hesitation. It's intermittent, seems to run fine inbetween. Sounds a bit gruff when it's playing up (slightly more throaty?). Idle gets a bit lumpy, and seems to hesitate under 2.5k revs. 

 

No error codes, plugs and coil packs changed. Not using any oil (it's the later 1.4 lump). 66k miles, 63 plate. 

 

Any suggestions more than welcome! 

 

Cheers

Warren

Try clearing the dynamic map, over time they tend to overlean slightly causing the symptoms you describe.

4 minutes ago, sepulchrave said:

Try clearing the dynamic map, over time they tend to overlean slightly causing the symptoms you describe.

Thanks for that, I've had a search and can't seem to find any info on the dynamic map? Is that a vcds job?

4 minutes ago, warren172 said:

Thanks for that, I've had a search and can't seem to find any info on the dynamic map? Is that a vcds job?

 

Just clearing faults usually resets the map, even if there are no faults to clear.

Clearing faults hasn't made a difference. Did get some error codes though, misfire on all cylinders, P030000 and P010600. Could a dodgy map sensor be the issue?

Unlikely to be the MAP sensor:

 

http://wiki.ross-tech.com/wiki/index.php/16490/P0106/000262

 

http://wiki.ross-tech.com/wiki/index.php/16684/P0300/000768

 

Boost leak is common to both, also camchain issues.