7 replies to this topic

[james0133]

I have a 98 Rover Mini Cooper Jap import. The car suddenly started hunting recently and the A/C fan, I think has stopped working. It seems to be surging and it seems to be electrical and not mechanical fault and the revs were rock solid before. When you put the lights on or the radio the revs go up and down.

I was in a car park on a really wet day with everything electrical on, the CD player, the windscreen blower, the wipers, the back window heater and the lights, when it first started. The car started revving with out and input and since then the revs have not been steady.
Any Ideas?

I would love to get some diagnostic software from eBay but I’m not sure which one will work with the Mini.


(Also posted in Technical and Problems but thought Injection Mini Specific more relivent)

[elvisthepizzaman]

Clean your grounds, the two in the engine bay and the battery ground as well.
The engine bay grounds are attached to the cross braces, one behind the side mounted radiator and the other below the wiper motor

by the way I have an almost new AC compressor that fits the late model jap cars that use the serpentine belt system for sale.

Edited by elvisthepizzaman, 15 September 2008 - 06:28 PM.

[taffy1967]

I don't suppose it's got anything to do with this?: -

Twin-Point/MPi Electric Fan Issue: -
http://matsone.csuea...ges/x8479bu.pdf

The parts cost around 40 quid.

[elvisthepizzaman]

no it does not, the post 97 jap spec import cars used the mpi block but with the single point fuel injection and retained the side mounted radiators. I dont remember if they used the twin point thermostat housing or kept the sensor in the bottom of the radiator. Having kept the side mounted radiator allowed the fitment of the compressor for the AC systems as there is plenty of space below the alternator since the radiator is not in the way.

[james0133]

Clean your grounds, the two in the engine bay and the battery ground as well.
The engine bay grounds are attached to the cross braces, one behind the side mounted radiator and the other below the wiper motor

by the way I have an almost new AC compressor that fits the late model jap cars that use the serpentine belt system for sale.

Thanks for the reply and the offer of the compressor but its my air con fan that cools the a/c rad that has stoped working and I think it is the motor. I will test it this weekend and will also check the earth grounds.

[james0133]

I checked the grounds with the meter and they are all good.
Any other ideas?
I really need to find my self some diagnostic software. Anyone know where I can get a setup cheep?

[elvisthepizzaman]

Unless the grounds were really rusty you would not get battery voltage reading. You need to get a readout during power drain on it, the smallest wire can give you the proper voltage but when you stick a load on it nothing gets through. Just clean them up, takes 5 minutes to do it.

[james0133]

Unless the grounds were really rusty you would not get battery voltage reading. You need to get a readout during power drain on it, the smallest wire can give you the proper voltage but when you stick a load on it nothing gets through. Just clean them up, takes 5 minutes to do it.

I had not realised that. Thanks for the info. I will clean them just to be sure.