[Z06] Problem with 03 z06

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Oct 7, 2007 | 10:28 PM

VenomZ

Thread Starter

Intermediate

Joined: May 2006

Posts: 39

Likes: 0

From: Cary NC

Problem with 03 z06

Hey everyone. This is the first problem ive had with my z06. It started happening out of the blue, the car seems to hesistate and stutter when just going up through the rpms. When i get on the gas it backfires alot and hesitates. My guess is the one of the cylinders isnt firing but i havent checked any of the plugs yet. Any ideas?

Oct 7, 2007 | 10:34 PM

z06Bigbird

Safety Car

Joined: Jan 2007

Posts: 4,300

Likes: 6

From: San Antonio Texas

Plug wires.
Coil pack.
Not plugs unless you have 90,000 miles plus.

If not above, put on scanner. Is it throwing any codes?

Oct 8, 2007 | 12:11 AM

heavymetals

Drifting

Joined: Jul 2005

Posts: 1,484

Likes: 27

From: Torrance Calif

Could be bad gas or contaminated gas (water).

Oct 8, 2007 | 12:51 AM

utryd2

Melting Slicks

Joined: May 2007

Posts: 2,533

Likes: 1

From: North Aurora IL

Quote:

Originally Posted by heavymetals

Could be bad gas or contaminated gas (water).

There has been a lot of problems with bad gas lately.....

Oct 8, 2007 | 12:56 AM

briann510

Melting Slicks

Joined: Aug 2005

Posts: 3,398

Likes: 2

Quote:

Originally Posted by z06Bigbird

Not plugs unless you have 90,000 miles plus.

Ive seen stock plugs lose their pucks at 20K and misfire like crazy. Id change out any plugs if they have 40K or more.

Oct 8, 2007 | 07:13 AM

PA Z06

Safety Car

Joined: Sep 2005

Posts: 3,610

Likes: 12

From: Philly Burbs PA

Pull the codes on your DIC and see if it says anything.

Oct 8, 2007 | 08:15 AM

Chris Stewart

Safety Car

Joined: Apr 2000

Posts: 4,326

Likes: 140

From: Weatherford, TX

This happened to me the other day, and the cause was a disconnected coupler at the air bridge. It was letting in unmetered air and made it run like you describe. Check your connections from the throttle body to the MAF.

Oct 8, 2007 | 03:03 PM

VenomZ

Thread Starter

Intermediate

Joined: May 2006

Posts: 39

Likes: 0

From: Cary NC

Hey i know this has probably been covered a million times but how do i pull the codes myself and where is the code legend

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Oct 8, 2007 | 03:14 PM

dwjz06

Dogface

Joined: Jul 2004

Posts: 25,974

Likes: 120

From: At the Beach, FL

St. Jude Donor '15, '17

Quote:

Originally Posted by VenomZ

Hey i know this has probably been covered a million times but how do i pull the codes myself and where is the code legend

Check here.http://www.stengel.net/diccodes.htm

Oct 8, 2007 | 06:54 PM

#10

u4ick

Burning Brakes

Joined: Mar 2007

Posts: 1,158

Likes: 1

From: St. Peters MO

I had this same issue.........started out as knock at wide open throttle, car then tripped code for both front O2 sensors reading low voltage. It turned out to be my fuel pump loosing pressure at anything above 1/2 throttle........
See more here:
http://forums.corvetteforum.com/show....php?t=1827272

Oct 10, 2007 | 12:09 AM

#11

slvrzo6

Drifting

Joined: Aug 2007

Posts: 1,969

Likes: 8

From: Champaign IL

I'd Check all your Fuel injectors Wires, and Spark Plug Wires First.. I once had a Mouse Bite threw a Fuel injector wire on my Mustang.. It did exactly what your Vet is doing.... Check your spark plug wires too..