General Tech Good at troubleshooting? Have a non specific issue? Discuss general tech topics here.

LT1 keeps fouling plugs

Old 10-01-2012, 09:40 PM
Junior Member
Thread Starter
Join Date: Oct 2012
Posts: 1
Default LT1 keeps fouling plugs

I have a 96 LT1 vette with high mileage on it (150K) and recently it has started fouling the plugs on the passenger side. The car has ran great all its life, and within the past 10K miles it has had a new distributor and ECM. The car started missing and coded for an O2 sensor which I replaced (replaced all 4 since I was in there). At the same time I decided to do the plugs. When I replaced them I noticed the passenger side was fouled (same side as bad o2 sensor) and now about 200 miles later they have fouled again and the o2 sensor is coding again. The driver side plugs are fine. I've checked the engine for vacuum leaks and didn't find any. The ignition system on this is mostly new and the O2 sensors are new, so is there anything else that I should look at? Are there any other fuel or ignition components/sensors specific to the passenger side that could be malfunctioning without throwing a code? Thanks
Old 10-05-2012, 12:36 PM
73shark's Avatar
Super Moderator
Join Date: Apr 2006
Location: KC, MO area
Posts: 2,704

Welcome to the forum.

Might do a compression and leakdown check. Check injectors on that bank also.
Related Topics
Thread Starter
Last Post
Corvette C4 Forum
09-23-2014 10:56 AM
Corvette C5 Forum
10-29-2009 04:07 AM
Bob the Barber Carey
General Tech
07-20-2007 09:47 PM
Corvette C6 Forum
05-31-2007 07:48 AM
General Tech
10-28-2006 06:59 PM

Thread Tools
Search this Thread
Quick Reply: LT1 keeps fouling plugs

Featured Sponsors
Vendor Directory

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.