Huge bump=P0300 code
Thread Starter
Pro
Joined: Jul 2008
Posts: 619
Likes: 3
From: Wheeling IL
Huge bump=P0300 code
They stripped the road surface under an overpass and I couldn't see the bump sign at night when it was raining. Since I'm slammed, it didn't feel very good when I hit the much higher surface at 55mph. I didn't get any codes until I stopped at a light and then it all began, code P0300 popped up and the car idled really rough. At speed the check engine light flashes and that's not good so I drove the car straight home. I have a 97 A4, thanks for the help.
Burning Brakes
Joined: Oct 2013
Posts: 859
Likes: 1
They stripped the road surface under an overpass and I couldn't see the bump sign at night when it was raining. Since I'm slammed, it didn't feel very good when I hit the much higher surface at 55mph. I didn't get any codes until I stopped at a light and then it all began, code P0300 popped up and the car idled really rough. At speed the check engine light flashes and that's not good so I drove the car straight home. I have a 97 A4, thanks for the help.
Race Director
Joined: May 2012
Posts: 15,731
Likes: 3,254
From: Phoenix area, AZ
Thread Starter
Pro
Joined: Jul 2008
Posts: 619
Likes: 3
From: Wheeling IL
It was the plug wire on the spark plug end! The rubber hose was hanging and not attached. It looks like the spring on the inside is green and corroded, assuming it's a copper spring.
Will this problem keep getting worse or am I ok here and should just aviod huge bumps in the road?
Will this problem keep getting worse or am I ok here and should just aviod huge bumps in the road?
Race Director
Joined: May 2012
Posts: 15,731
Likes: 3,254
From: Phoenix area, AZ
It was the plug wire on the spark plug end! The rubber hose was hanging and not attached. It looks like the spring on the inside is green and corroded, assuming it's a copper spring.
Will this problem keep getting worse or am I ok here and should just aviod huge bumps in the road?
Will this problem keep getting worse or am I ok here and should just aviod huge bumps in the road?
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Purchase a set of GM Performance RED wires. While you have the wires OFF, its a good opportunity to replace the plugs with some GM Irridum plugs if you have not done so in the last 50-60 K miles.
GM Performance Wires:
GM Performance Wires:
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