I have a 2002 SLE V6 (not supercharged)
I started her up this morning and the engine is running real rough. Feels like a miss in the engine. Sputters when you accelerate and feels like its going to die when braking or stopping. The service engine soon light was on now its flashing. I had autozone do their diagnostic test and it gave 4 different codes.
(p0404) - says egr system fault - failed egr pressure and position sensor where applicable, failed egr valve.
(p1404) - egr valve stuck open, carbon blockage of the pintle, failed egr
(p0306) - cylinder misfire detected - cylinder 6, ignition system fault-spark plugs, wires, coil, vacuum leak, injector fault, high or low fuel pressure.
(?)- evap purge/vent solenoid circuit condition, purge or vent solenoids defective, fuel saturated vapor canister, failed evap vent solenoid.
I have already replaced my egr a month ago, and 6 months ago I did my plugs and wires. Should I recheck everything? Can anyone please help me figure out what my next step should be????? PPPPPLLLLEEEAAASEEEE