Cable ID please
Cable ID please
Author
Discussion

skiver

Original Poster:

658 posts

223 months

Friday 13th June 2014
quotequote all
I had to abandon the car at a friends house last night due to a misfire and cutting out problem. He's had a look at it today and has spotted a burnt cable resting on the nearside exhaust manifold.
This cable emerges from the bulkhead beneath the wiper motor and follows the induction pipe to a black plastic box (where the induction pipe goes into the front of the car).
I have to go there tomorrow to fix it but it would be useful to know what I'm working on!
Thanks for any info.

Duke Thrust

1,680 posts

269 months

Friday 13th June 2014
quotequote all
Without looking I'd guess at the fan switch - will pop down and take a peek.

phazed

22,496 posts

234 months

Friday 13th June 2014
quotequote all
A fan switch wouldn't give those symptoms.

maybe there's a short that is upsetting the running?

Duke Thrust

1,680 posts

269 months

Friday 13th June 2014
quotequote all
I think the two could be unrelated - just had a look and there's no other obvious cable.

Unless he means the AFM cable but that stops at the AFM and not the air box.


skiver

Original Poster:

658 posts

223 months

Friday 13th June 2014
quotequote all
OK thanks for that; I was hoping it would be a simple cable-jointing job to get me home,but hopefully it'll be one of the usual suspects.

swallet

453 posts

173 months

Saturday 14th June 2014
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On both my chims the cabling to the alarm horn followed this route. It’s the only bit of electrical kit at the front nearside of the car apart from the otter switch on later models.

I’m not sure exactly how the alarms logic circuits work but maybe if it thinks the siren has been cut off then the immobiliser will come on.

Wouldn’t really explain your symptom though.

Only other cable that side is the one to the afm but car should still start and it doesn’t go all the way to the front.

You haven’t got some strange torque flow induction or similar have you?

Edited by swallet on Saturday 14th June 20:52

QBee

22,483 posts

174 months

Saturday 14th June 2014
quotequote all
Description is not very good, but if that is the wire from the AFM, mine has to be cable tied to the induction pipe to keep it off the manifold, and it being burnt could give false air volume readings to the ECU, resulting in erotic fuelling and a misfire.

skiver

Original Poster:

658 posts

223 months

Monday 16th June 2014
quotequote all
It was the fan switch cable, so was unrelated to the problem, which on the way home evolved as serious shunting at all speeds. In 7 years with the car this is the first time I have experienced it shunting.
So far I have cleaned the stepper and sprayed 'start-it' around all joints and pipe connections to the plenum and stepper, but no sign of an air leak there.
Just before the problem started I had put 20 quids worth of BP in a low tank so it seems likely that either some rubbish has been drawn through the system or the fuel was dodgy, so the next step is to drain the tank and try a couple of gallons of new fuel before I resort to flushing the whole system.rolleyes

Swallet, no fancy induction system!

Edited by skiver on Monday 16th June 16:21

phazed

22,496 posts

234 months

Monday 16th June 2014
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£20.00 worth of fuel would be 20 mins driving then just brim and go.........

rigga

8,806 posts

231 months

Monday 16th June 2014
quotequote all
QBee said:
erotic fuelling
yikeswell it is the chimp forum so god knows what else happens to your car's. laugh

phazed

22,496 posts

234 months

Monday 16th June 2014
quotequote all
skiver said:
or brim and stop....smile
That's always possible!

Seems like a coincidence though.

A couple of years ago, in a hurry I accidentally put £20 worth of petrol in my TD5 Disco.

It ran absolutely perfectly!

Next day, it refused to start, took me ages to work out what was wrong rolleyes

jojackson4

3,049 posts

167 months

Monday 16th June 2014
quotequote all
rigga said:
QBee said:
erotic fuelling
yikeswell it is the chimp forum so god knows what else happens to your car's. laugh

QBee

22,483 posts

174 months

Monday 16th June 2014
quotequote all
Bloody iPad.....furious