went out this morning and since then on tick over the engine is a little lumpy and seems like its struggling feels like it has flat spots when pulling away about 2-3000 rpm and when coming to a stop it revs its self up and down for about 30 seconds going upto about 2000rpm

 

have you checked error codes lots of things could cause this maff /idel control valve /air leak or have you drove through any water ....changed the petrol you normally use ... check error codes first take it from there ....


JollyGreenMonster.co.uk


see link i di and i rest ecu car running well now

 

MAF

 

its got an fc commander can it be reset still not gone thru any water ;-( can i do any diy tests to try and pinpoint it

 

Mine does as above replaced MAF with a new one and replaced IDLE VALVE still the same I can see a Box of matches coming out

 

If you've got a Power Fc then i think you can check the voltages of each sensor via the Commander

 

If i can check the voltage on my power Fc, then what should i be looking for??

 

right checked the mass sensor by taking it of and run really lumpy when taken of and i now know that its when the engine is warm its when it starts running lumpy started it let it just sit there ticking over after about 4-5 mains a few little revs in this time upto about 3000rpm that it is running lumpy

 

To check the maff sensor, do the ecu checks as post 2. above.