Slowcar51190

hey everyone i was just woundering why my car is showing a misfire code?.. i have a 1999 Trans am WS6 with Heads/Cam.. it idols great runs strong for a Heads/Cam untuned for now.. does anyone have any idea what it could be? its going to sound werid i think it might be the cam?. which i am prob wrong?
but thanks for the help if anyone knows what it is

LS-ONE_DAY

Begin by looking at the coils/coilpack and spark plugs/spark plug wires

canada4g63

As stated before look to see if the coil pack is arching out, or burnt wire, fouled plug.

tswiz'smaro

When i broke an intake pushrod i got a misfire code. I thought it was kind of humerous, even though this isnt going to help you any!

Slowcar51190

I do have Fouled spark plugs when i do headers comming up i am of course going to change out the plugs and wire.. i mean it not mis-firing bad. but u it is pulling codes and taking a lot of power from the heads and cam,

Slowcar51190

could it be. that my car isnt tuned?

bayer-z28

iTrader: (14)

^ if it's not tuned, the plugs may be getting fouled and causing a misfire.

Slowcar51190

i was reading up on the 1999 F-body LS1 and they were saying that the knock sensor go bad or is it get pintched that will cause a mis-fire code.. does anyone know about that problem or can anyone comfirm that it will read a misfire code?

thunderstruck507

iTrader: (18)

If it's untuned that is almost certainly your culprit. Get the car tuned.

k_garretson23

iTrader: (8)

get the car tuned. My car misfired when my o2 sensors got wet. Even if yours didnt get wet, a bad o2 can cause a misfire.

joecar

No, that will cause a knock sensor code instead.