For the first 5 mins of driving from cold the car feels like its got a misfire. Then it goes once it has warmed up a little and wont come back till i first start it the next day from cold.

 

Coolant temp sensor?
Same symptoms as i had when mine was messing about.

 

Though it was most likley to be that or the maf. Thanks alot. Now i can sort that and carry on enjoying my new PFC

 

I think you can check the voltages on the Commander (i have no idea what they should be though you'll need to speak to someone who maps them) and the readings can indicate whether the sensor is good or not.

 

mbwrx is right. Chris do you have the Commander too? If so, let us know and I'll tell you how to check the MAF voltage, and where it is on the Commander, etc. (if you don't know obviously)...

 

I’ve checked the voltage on all the sensors and checked the coil packs as have the guys who fitted it and all seems fine. They have let me use a new MAF for the week to see if it still does it. If it still does then going to change the temp sensor.

 

Well the new MAF didnt do anything so it has to be the water temp sensor.