WhitePhoenix99

iTrader: (12)

Could anyone tell me what are some signs of a bad injector? Thanks

Old Geezer

iTrader: (3)

No rpm change when unplugged.
Wet plug.
No sign of combustion on the plug.
Fast drop of FP when engine is turned off.
Low egt on that cyl.
Skewed readings on the datalogs.

boola1341

iTrader: (1)

Could a bad injector cause the P0300 code??

WhitePhoenix99

iTrader: (12)

I recently changed plugs and one of them was completely covered in gunk of some type, and was wet. Could this possibly be the bad injector?

killagt

iTrader: (3)

its oil ?

WhitePhoenix99

iTrader: (12)

I'm not sure if it was oil, I don't think it was. It was a thick gunk of some type. I'm not really sure how to explain it.

Old Geezer

iTrader: (3)

U still have that plug? If so, post a couple good pics. Maybe we can get an idea of what it is.
Was the gunk wet, burned dry, sticky, hard crust??
Engine using oil?
" " coolant?
Unplugged the plug wire on that cyl? If so, what happened?
Do a compression check?
NE codes set?

Old Geezer

iTrader: (3)

0300= random/multiple cylinder misfire..
Suggest you start your own thread. That way, we'll not be chasing 2, possibly different problems...

WhitePhoenix99

iTrader: (12)

Well I got rid of the plug when I changed them but the gunk was wet and sticky, it was pretty thick. I don't see how it was even firing really. The only codes its throwing are two o2 sensor codes and egr malfuntion. The cats are removed along with the egr and air pump.

The car only misses out after converter lockup when I give it part throttle. If I continue to give it throttle it will clear up until higher rpms and then start to miss again. Also it only does this after the car has reached operating temperature.