Ca18et runs bad/missfire

[s13eater]

i had one that would tickover ok, then missfire on acceleration, then one that would tickover lumpy then pick up on acceleration, both air flow meters were fucked.

[CNHSS1]

AFMs a good shout, as is the wiring to the AFM which ive had fail.

if its revs based, could be voltage related, check earths to block and to ecu. Ensure battery is 110% good too.

try unplugging each plug lead in turn and seeing if that has any effect, do the same with the injectors

if it doesn't feel 'electrical' check fuel pump and filter, good be a goosed pump or clogged filter, restricting flow of fuel as the rom and fuel requirement rises

[Westerlund]

It was the o2 sensor, or what you guys call it?
I changed it yesterday and now the car runs great again.