Hi Bill, take it from an expert on the subject, if the insulation on the

wires is flaking, you need a new harness. The easy way to tell is to check

the insluation of the wires grounded to the intake manifold to a plate

which holds the fuel rail. Look under the intake manifold on the cyl

head by cyl #2 for a yellow wire. If the insulation is bad or gone, you

need a replacement. If the insulation does not flake off it's ok. Mine

was VERY bad inside the sheath where the injector wires come out. I will

be posting some pictures soon as an example. I posted a message earlier

about my exploits.