Rep Power: 0

Hey guys,

So my engine light kept on coming on and off... so i got one of my co-workers to hook up an OBD2 to it.. first time he did it, it shows all 4 cylinders misfiring... so he cleared it, and see what happens the next time it comes back on...

It came back on today, he hooked it up again but this time it shows cylinders 2, 3 and 4 misfiring... What the hell is goin' on here???

Anyone?

 
Rep Power: 811

time for new plugs?

 
Rep Power: 0

i just changed the plugs last month with NGK iridium..

i didn't gap them tho, could this be why? cuz i thought we can't gap iridium plugs or they'll break, plus it looks like the same gap as the factory ones..

 
Rep Power: 811

weird, they should be gapped already. if its not the plugs, maybe clogged injectors? low fuel pressure, bad grounds, electrical shorts, could be a whole lot of things.