Recently the car has began jerking when driving along. I have this in all gears and from cold.

I'm thinking this is possibly a problem with the MAF but shall await words of wisdom from others

Sean

 

MAP sensor.

 

When exactly does it do it, and does it go away?

There is a guide in the Tech FAQ

 

If you are jerking a lot, wack your map

 

It's jerking during the entire drive from cold to parking. There doesn't appear to be any on WOT, however.

It feels similar to heat soak but not quite as violent in the jerking motion.

Ian I will try your suggestion tomorrow.

 

Never jerk from cold!

You'll go blind!!

 

I was CONVINCED Nott_s2 had started this thread.

 

Most likely candidates are the MAP or lambda sensor, but tricky to tell...

 

Cheers!

I'll try the whack then, if no joy, I'll buy a replcement MAP.

Sean

 

you could always try just resetting the ECU as well if the MAP whack doesn't work