lumpy and things???

[Finny]

ive been bringing the van home recently compared to the usual 15-20 drive i normally do but...ive noticed after the car standing over night or all day or it may be the cold but its lumpy and when i try and put my foot down a little its really hesitant then yesterday it back fired once!

all thats changed is amount of use and a stealth exhaust since ive noticed it really any light on this anyone?

 

[Finny]

anyone?

 

[hilldawg172]

Does it hesitate when up to temp or just when cold? My cup when cold is a bag of s**t to drive for the first mile or so. As for the backfire, not sure but since i put a yozza system on mine it pops all day long and will ocasionally bang when cold, sounds awesome lol.

 

[!big ash!]

u'll have to get it on diagnostics live data, from cold graph it u might poss see a drop out somewhere (poss coolant temp sensor) or poss damp got to your plug leads
also i notest when i got exhaust yes it lompy for min or 2 from cold an pop's too

 

[Finny]

thats ok then its only for about the first mile tops then its sound lads....probably just leave it then