Colt Vista FWD L4-1795cc 1.8L SOHC (1994)
Spark Plug: Component Tests and General Diagnostics
Installation of Spark Plug Cable
Installation Of Spark Plug Cable
Improper arrangement of spark plug cables will induce voltage between the cables, causing miss firing and developing a surge at acceleration in
high-speed operation. Therefore, be careful to arrange the spark plug cables properly by the following procedure.
1.
Install the spark plug cable clams as shown in the iilustraton.
2.
The numerals on the support and clamp indicate the spark plug cable No.
3.
Pay attention to the following items when the spark plug cables are installed.
a. Install the cables securely to avoid possible contact with metal parts.
b. Install the cables neatly, ensuring they are not too tight, loose, twisted or kinked.
Spark Plug Cable Test
Spark Plug Cable Test
1. Disconnect, one at a time, each of the spark plug cables while the engine is idling to check whether the engine's running performance changes or
not.
CAUTION: Wear rubber gloves while doing so.
2. If the engine performance does not change, check the resistance of the spark plug cable, and check the spark plug itself.
Spark Plug Inspection
SPARK PLUG
1. Check the following items to see that electrodes are not burnt, and insulators are not broken, and how the porcelain insulator is burnt.
^ Broken insulators
^ Wearing electrodes
^ Deposited carbon