TOY: RE: Knock Sensors

[Ed Wong <ewong_kaizen@xxxxxxxxx>]

Karl:

I doubt that the "loop" was intentional. Im assuming
that the loop was between the "plug" to the knock
sensor and the EFI computer (on the Supra harness)?

Anyway - Ive seen this happen with perlon cord (perlon
has a braided strand thats encased in a woven sheath -
in may ways similar to wire). If the inner core is
"twisted" when its placed inside the sheath, it forces
its way out with a "perfect" loop.
My guess is that the person assembling the wire had a
"twist" in the wire (not a loop - a slight twist -
possibly caused by getting to the bottom of the spool
where the wire is wound tighter). If cut out the
section and splice in a new section of wire. Of if yer
made of money - buy a new OEM harness :)
{Just fer yucks - go price one - I ROTFLMAO  when I
asked)

One thing to be aware of if you create a soldered
splice - the soldered section will be "stiff". Try to
create the solder section where it wont be forced to
flex. Also realize that the flex points are now going
to be at the ends of the soldered section. Encasing
the entire section in shrink wrap tubing can help with
some of the flexing by creating a sort of "flex"
spring to the wiring loom.

EWong



---
I was checking one of the two Kock Sensor wires and
discovered continuity
between the knock sensor and the shield. I then
discovered a lump in the
wire. I cut it open only to find that the inner wire
is coming out of its
insulation and contacting the shielding. But, it was a
nice loop of wire
that stuck out, like Toyota did this on purpose. Is it
possible that
Toyota meant to do this? My 1987 Supra manual doesn't
give any directions
on checking the wire, nor does my 1985 4Runner manual.

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