Spectrum L4-91.5 1.5L (1985)
Spark Plug Wire: Testing and Inspection
1.
Check spark plug wires for broken insulation and spark plug terminals for corrosion or damage. Replace spark plug(s), if necessary.
2.
Using a suitable ohmmeter, measure resistance of each spark plug wire. Resistance values obtained should be as follows:
a. On 1985 models, ignition coil to distributor cable resistance should be 4.03 - 9.41 kilo ohms.
b. Number 1 spark plug cable resistance should be 5.96 - 13.91 on 1985 models or 6.44 - 15.03 kilo ohms on 1986 - 88 models.
c. Number 2 spark plug cable resistance should be 5.15 - 12.01 kilo ohms on 1985 models or 5.29 - 12.34 kilo ohms on 1986 - 88 models.
d. Number 3 spark plug cable resistance should be 4.81 - 11.2 kilo ohms on 1985 - 88 models.
e. Number 4 spark plug cable resistance should be 3.73 - 8.71 kilo ohms on 1985 models or 3.35 - 7.82 kilo ohms on 1986 - 88 models. The
spark plug cables contain a synthetic conductor which will be damaged if the cables are stretched or kinked. Piercing the cable with
a needle or the pointed end of a probe during the test will cause an increase in cable resistance at that point and will result in cable
failure.