Help With DTCs

GTvert01

New Member

Nov 24, 2003

636

0

0

West Plains, MO

Aug 15, 2005

#1

• Aug 15, 2005

• #1

This is for a 2003 GT



I am looking for some help diagnosing a few codes.Any help would be greatly appreciated.I used my Superchips programmer to run a diagnostic scan.The check engine light goes on and off and is really affecting driveability.It came up with the following codes.

PO301,303,304,305 and 316.I saw that the first four are for misfires, but cannot find the 316. Hopefully you guys can shed some light on the subject.

Thanks in Advance.

 

MT1083

New Member

Sep 16, 2003

1,033

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0

Charlotte, NC

Aug 15, 2005

#2

• Aug 15, 2005

• #2

P0316 - misfire detected 1st 1000 revs.

 

GTvert01

New Member

Nov 24, 2003

636

0

0

West Plains, MO

Aug 15, 2005

#3

• Aug 15, 2005

• #3

any ideas what may cause this? i just put steeda u/ds on, but would that cause misfires?

 

GTvert01

New Member

Nov 24, 2003

636

0

0

West Plains, MO

Aug 16, 2005

#4

• Aug 16, 2005

• #4

bump

 

GTvert01

New Member

Nov 24, 2003

636

0

0

West Plains, MO

Aug 16, 2005

#5

• Aug 16, 2005

• #5

also p1000 apparently it isn't finishing the test?

 

MT1083

New Member

Sep 16, 2003

1,033

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0

Charlotte, NC

Aug 16, 2005

#6

• Aug 16, 2005

• #6

correct.

 

sgarlic

Founding Member

Apr 21, 2001

3,085

1

56

Aug 16, 2005

#7

• Aug 16, 2005

• #7

When was the last time you changed your plugs? Check the gap, etc. Make sure none of the COP wires are loose, etc.

 

GTvert01

New Member

Nov 24, 2003

636

0

0

West Plains, MO

Aug 16, 2005

#8

• Aug 16, 2005

• #8

It's an 03 and I pulled the plugs on the misfiring cylinders and everything looks fine.everything is good and tight, but there is a definite miss