spark plugs keep fouling
Thread Starter
Racer
Joined: Oct 2003
Posts: 263
Likes: 0
From: jojobe Tx
spark plugs keep fouling
I have an 89 vette which has had numerous mods. I took it to fuel injection services and was going to have them reprogram my computer, but before they could they told me i had fouled 3 plugs and had an exhaust leak at my h pipe. Well i did not leave it for them to fix because they gave me some crap about having to take off the exhaust and take it to a muffler shop in the back of a truck. So i picked it up and it drove fine until i noticed that i had fouled more plugs. What could the problem be?
mods:
compression boosted 9:5 to 11:0
rebuilt motor
fully balanced
floating connecting rods
dual purpose street and track cam
hedman headers
centerforce dual friction clutch
cf pressure plate
cf flywheel
lingenfelter intake manifold
lingenfelter superram
52mm throttle body
afpr
heads 48 cc to 56cc heads fully ported and polished
roller rockers
msd wires
dual valve springs with titanium retainers
cloyes true timing chain
airfoil
k and n airfilter
frisbee gone
what could be the causes and why?
mods:
compression boosted 9:5 to 11:0
rebuilt motor
fully balanced
floating connecting rods
dual purpose street and track cam
hedman headers
centerforce dual friction clutch
cf pressure plate
cf flywheel
lingenfelter intake manifold
lingenfelter superram
52mm throttle body
afpr
heads 48 cc to 56cc heads fully ported and polished
roller rockers
msd wires
dual valve springs with titanium retainers
cloyes true timing chain
airfoil
k and n airfilter
frisbee gone
what could be the causes and why?
Le Mans Master
Joined: Dec 2004
Posts: 5,789
Likes: 8
From: Myrtle Beach SC
St. Jude Donor '05-'06
What do the plugs look like? That will tell a lot.
http://www.advanceautoparts.com/engl...0030701sp.html
http://www.spark-plugs.co.uk/pages/t.../diagnosis.htm
http://www.advanceautoparts.com/engl...0030701sp.html
http://www.spark-plugs.co.uk/pages/t.../diagnosis.htm
Last edited by Redeasysport; Aug 27, 2005 at 10:28 PM.
Drifting
Joined: Mar 2005
Posts: 1,923
Likes: 0
From: GA
Originally Posted by Caleb56
i need to know if an oxygen sensor is required and if this could cause a problem. My headers did not come with the o2 sensor or a place for one.
You can buy the O2 bung from Summit, Jegs, etc.. And you may be able to get one at a muffler shop and have them weld it on.
Its the little things that people forget to mention that leads to running around...like no O2 sensor...
Le Mans Master
Joined: Jul 1999
Posts: 8,683
Likes: 6
From: Phoenix AZ
Originally Posted by Caleb56
i need to know if an oxygen sensor is required and if this could cause a problem. My headers did not come with the o2 sensor or a place for one.
