Idle dropping, help in Aberdeen

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Re: Idle dropping, help in Aberdeen

Postby drumtochty » Sun Mar 01, 2015 1:43 am

Saturday evening was getting a netbook working and speeded up for a lady in the village.

Just busy at the moment.
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Re: Idle dropping, help in Aberdeen

Postby drumtochty » Sun Mar 01, 2015 5:54 pm

Car has started cutting out again at idle.

Looks like I will be tested at the weekend, if I get stuck Malcolm GS is just a field away.
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Re: Idle dropping, help in Aberdeen

Postby drumtochty » Thu Mar 05, 2015 7:44 pm

Drove the car from Stonehaven to Drumtochty today.

The car was performing great on the 15 mile run.

On one occassion at 4,000 rpm when going from 2 to 3rd there was a possible misfire but that is a maybe. I could not get the car to do that again and no cutting out at junctions or refusing to start.

I did a flash test and got an error 9 which is a possible temperature probe failure at the back of the cylinder head. The one at the front that feeds the fan and temperature guage is not included in this fault.

Cleared the codes and went for a run no issues and on doing another flash test, the car produced no fault codes.

At the momdent the rear temperature sensor is suspect and also the clutch pedal switch is due to be removed and tested.

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Re: Idle dropping, help in Aberdeen

Postby DazTilley » Fri Mar 06, 2015 4:39 pm

You can test the clutch switch with the led flasher ;)
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Re: Idle dropping, help in Aberdeen

Postby drumtochty » Fri Mar 06, 2015 9:35 pm

According to the card that came with the diode you can but it is not working on this 92 car.

Do you know which connectors to use for that.

The ones you use for the flash test do work for the flash test but not the switch test. That is patch Ten /GRD diode B+ / FEN

eddie

More misfires today and again getting a code 9 rear temperature sensor.
Last edited by drumtochty on Fri Mar 06, 2015 10:57 pm, edited 1 time in total.
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Re: Idle dropping, help in Aberdeen

Postby DazTilley » Fri Mar 06, 2015 9:41 pm

Jumper (ten) (gnd)
Led + (B+) - (fen)
Ignition ON

Clutch switch
pedal up = led on
pedal down = led off

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Re: Idle dropping, help in Aberdeen

Postby DazTilley » Fri Mar 06, 2015 9:54 pm

You can also test the gearbox NEUTRAL switch using the same connections as my previous post..

In gear = led 0n
out of gear = led off

Both tests above with the clutch released - engine off - ignition ON

Could be EITHER switch causing the idle drop ;)

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Re: Idle dropping, help in Aberdeen

Postby drumtochty » Fri Mar 06, 2015 10:55 pm

Have you tried these test with those connections and got them to work.
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Re: Idle dropping, help in Aberdeen

Postby DazTilley » Fri Mar 06, 2015 10:58 pm

I haven't tested them on my MK1 as mine is running fine....

But i could do them if you like?

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Re: Idle dropping, help in Aberdeen

Postby drumtochty » Fri Mar 06, 2015 11:41 pm

Just confirmed on another forum that to do the switch tests the diode has to go from +B to MEN

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Re: Idle dropping, help in Aberdeen

Postby DazTilley » Fri Mar 06, 2015 11:45 pm

Looks like a typo on the card then :D

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Re: Idle dropping, help in Aberdeen

Postby drumtochty » Sat Mar 07, 2015 12:43 am

Yes that is the problem.

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Re: Idle dropping, help in Aberdeen

Postby DazTilley » Sat Mar 07, 2015 11:39 am

I would still check both switches for correct operation - as either can cause the idle drop.

Looking in my HAYNES (5565) the neutral switch is on page 7.3 and is situated on the drivers side of the manual gearbox

Hope that helps

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Re: Idle dropping, help in Aberdeen

Postby drumtochty » Mon Mar 09, 2015 7:48 pm

The rear temperature sensor was replaced and the car now runs fine.

The test procedure to use the LED to test the car switches did not work.

I tested the neutral and clutch switch on the car and they are working just fine.

Tyre pressures adjusted and missing bolt in the hood clip replaced.

As the car is an Mk1 S Special it has Bilstien dampers which are good for handling and not uncomfortable but they do detract from the ride quality.

In saying that the lower mounting bush in the Bilstiens do tend to degenerate and replacement bushes are available.

Otherwise a working car with all drain holes now clear.

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Re: Idle dropping, help in Aberdeen

Postby OldSpice » Mon Mar 09, 2015 8:02 pm

As above. Your a star Eddie. Simples.
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Re: Idle dropping, help in Aberdeen

Postby bmv6197 » Mon Mar 09, 2015 8:42 pm

Well done Eddie - always good to hear a sweet-running Mk1 is back on the road!
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