Hello, would be really grateful for any ideas/help.
I have a 2.0 silver top Zetec in my mk3 fiesta which I put in myself.
I feel it’s running rich as the oil smells of fuel, it sometimes ‘pops’ from the exhaust and kangaroos on light throttle and when it’s warm it hunts on idle.
I have looked everywhere for air leaks, replaced the following sensors with new - air intake, coolant temp, lambda. I’m questioning the MAF but have no way of testing it, I’ve also swapped the TPS for another.

it pulls really well and revs lovely just do t want to do any damage caused by borewash!

Bill,