Stylus L4-1588cc 1.6L DOHC (4XE1-W) (1991)
Spark Plug: Technical Service Bulletins
Spark Plug - Cleaning
BULLETIN NUMBER
SB91-01-002
ISSUE DATE
January 17, 1991
GROUP
ENGINE
SPARK PLUG SERVICING
AFFECTED VEHICLES
All Isuzu models.
SERVICE INFORMATION
Frequent short engine starts and stops are necessary during vehicle transport to dealerships. Sometimes this causes cold fouling of spark plugs, resulting
in engine misfire.
If this condition is encountered on newly delivered or in-stock new vehicles, cleaning the spark plugs will eliminate the problem; spark plug replacement
is not necessary.