LivingSuccess1

before i pull my hair out. here's the details:
'98 SS camaro
101k mi
Mod: Air intake w/ K&N filter

P0305- misfire cyl 5
P0355- ignition coil primary circuit condition cyl 5
These 2 most likely related. I replaced both spark plug and coil, still getting code. Reset codes? I havent done that.

P0405- EGR fault
P1405- EGR solenoid low input
Sounds like EGR has failed, gonna remove it anyway, not too concerned about this one

Here's the head scratcher:
P1415- Air system bank 1 fault
I have no idea what to do on this one...

I just want my car back to the way it sounded before all this started happening, So I can continue to build it.

eseibel67

iTrader: (10)

I would check the wiring going from the PCM to cyl #5 for the misfire code. Signal wire is dark green.

The P1415 code is usually the check valve for the A.I.R. system is dirty. However, It may also be related to your misfire since it's on the same bank.

Not sure on the EGR.

spaz1

iTrader: (9)

The egr valve is prob corroaded. There is a recall on this one and I'd try doing what eseibel67 said

LivingSuccess1

Thanks. I'll check it out tomorrow and see what I discover.

intense3123

Swap coils with another cylinder and see if the misfire follows, may have a bad coil. Also try swapping the wire.

Air injection will have nothing to do with a misfire, it only helps heat the cats faster.