z28camaro1996

iTrader: (1)

heres whats happening. the only code im getting is p0400. the car is some what hard to start. but when it does it idles and misses pretty good. if i slowly rev it up it does fine. when i punch it, it acts like is going to die and back fires. but if let off it stays running. any suggestions?

fex77k

iTrader: (2)

P0400 : EGR Flow Malfunction
Pull off the EGR its probably full of carbon and how is your plugs, coil, and wires?

z28camaro1996

iTrader: (1)

the car has 227000 miles on it now and i replaced the plugs and wires at 180000.

fex77k

iTrader: (2)

I would at least look at a few of the plugs and makes sure your wires are in good shape, ohming them out keeps you from having to remove them.