I have a new stutter and a CEL, need advice

SMRcalidiv · Jul 28, 2006

Well my car began stuttering today and idling roughly, then it threw the check engine light. I have not done anything to the car recently that I can look back on and it was running fine yesterday. There is new gas in the car and Ive just now used a quarter tank, but just driving it home I noticed I used more gas than normal...weird. Anyways, is there a cheap scan tool I could buy, I see them at Pep Boys/ Kragen and I would rather buy one than pay close to the same to have it scanned. Thoughts on the problem and the tool?

Stang|ess · Jul 28, 2006

Autozone scans for free I believe.

ToplessStang · Jul 28, 2006

Yup, get some codes and we'll figure it out .

Mike97gt · Jul 28, 2006

get the codes and post them here..

GodAmGT00 · Jul 28, 2006

Have you tried pulling the plugs to see if they're fouled?? I'm thinking they will be, but if certain cylinders are more fouled than others, you may be able to start looking at things like igniters/coils...

JT

d98gt · Jul 28, 2006

Since it's a guessing game until the codes are ran, I vote for a loose vac. line

The guys at the local Autozone know when I go that it's time for them to pull a code. They know me by name and guess my problem before we pull the code Sad thing is, I never go there unless I need a code pulled. I goto Oreilly which is right beside them for "shopping".

Mike97gt · Jul 28, 2006

ok I am going to throw my hat in the guessing game.. It's a misfire caused by bad plug and COP.

d98gt · Jul 28, 2006

The plug and COP? I'm going to win the bet with that guess.

I guess we'll see once he returns with the results

Mike97gt · Jul 28, 2006

d98gt said:
The plug and COP? I'm going to win the bet with that guess.

I guess we'll see once he returns with the results

Well if it's stuttering while driving then it's a misfire of some sort.. and the most common cause of a misfire is a bad COP and plug on the modular motors.

if it's only idling bad and is fine under part throttle then it could be a vac leak..

lets see what the codes are..

Stang|ess · Jul 28, 2006

Hey, keep your guessing games out of tech

SMRcalidiv · Jul 28, 2006

Ok, guys I am going to get s scanner here in a little while and I will post the codes. I would drive the car down to Autozone but after shooting a plug out of my head, TWICE, I would rather play it safe and wait. So stay tuned lol

d98gt · Jul 28, 2006

Sounds good

and Mike, I was only kidding however when I threw my simple codes not long ago, I would get a "surge" at certain mph, but it would idle fine.

Mike97gt · Jul 28, 2006

d98gt said:
Sounds good

and Mike, I was only kidding however when I threw my simple codes not long ago, I would get a "surge" at certain mph, but it would idle fine.

I figured you were kidding.

SMRcalidiv · Jul 28, 2006

OK guys here it is, P0302. The book says thats a misfire on the number two cylinder. I guess I'm just gonna go get a new cop and plug unless one of you guys says otherwise.

d98gt · Jul 28, 2006

so I lost

SMRcalidiv · Jul 29, 2006

I guess Mike wins

d98gt · Jul 29, 2006

Lucky guess

Anyways, I'd go with pulling the plug out first and inspecting it. If it looks bad then replace it. I don't have COPs so I can't offer any real advise on them

SMRcalidiv · Jul 29, 2006

I replaced both, and the stutter is gone. It was obvious that moisture had got down in there from when I cleaned my motor, but that was like 2 weeks ago. There was some rust on the ceramic and plug connector, but the tip of the plug looked fine. I may have been able to just replace the plug but I thought it was weird that there was such a long delay before the stutter. Maybe Ill try the cop on another cylinder to see if its bad. The one it was on was a PITA to get out with a bullitt intake, I actually had to take off the throttle body to get to it. Is there any way to test a COP without it on the car?

Mike97gt · Jul 29, 2006

d98gt said:
Lucky guess

Anyways, I'd go with pulling the plug out first and inspecting it. If it looks bad then replace it. I don't have COPs so I can't offer any real advise on them

My diag dartboard and crystal ball is always right

Mike97gt · Jul 29, 2006

SMRcalidiv said:
I replaced both, and the stutter is gone. It was obvious that moisture had got down in there from when I cleaned my motor, but that was like 2 weeks ago. There was some rust on the ceramic and plug connector, but the tip of the plug looked fine. I may have been able to just replace the plug but I thought it was weird that there was such a long delay before the stutter. Maybe Ill try the cop on another cylinder to see if its bad. The one it was on was a PITA to get out with a bullitt intake, I actually had to take off the throttle body to get to it. Is there any way to test a COP without it on the car?

As long as the stutter is gone then the COP is ok.. you have the second most common cause of misfires ( water in the plug holes) bad COP, plug is second,,

I have a new stutter and a CEL, need advice

SMRcalidiv

Stang|ess

seeking cyber partner(s)

ToplessStang

Member

Mike97gt

it doe snot

GodAmGT00

New Member

d98gt

Mike97gt

it doe snot

d98gt

Mike97gt

it doe snot

Stang|ess

seeking cyber partner(s)

SMRcalidiv

d98gt

Mike97gt

it doe snot

SMRcalidiv

d98gt

SMRcalidiv

d98gt

SMRcalidiv

Mike97gt

it doe snot

Mike97gt

it doe snot

Similar threads

I have a new stutter and a CEL, need advice

seeking cyber partner(s)

Member

it doe snot

New Member

it doe snot

it doe snot

seeking cyber partner(s)

it doe snot

it doe snot

it doe snot

Similar threads

Privacy & Transparency

Privacy & Transparency