Need serious help!
Now the car is misfiring like a **** at WOT! Im thinking it could be that one of the plugs got damaged from moving the header around while clearancing the dr side K-member. We got a code reader and I think it read P0405 I think it was for the EGR which we removed (OR headers). But no misfire codes also we didn't notice the SES flashing we weren't really looking at it.
I not an auto guy so pardon the stupid questions:
What could cause the misfire?
What could cause the car dying out when coming to a stop (not always though)?
Im thinking the PCM will need to get tweeked.
Thanks guys!

