Hi all,

will have to bear with me on this one:

Nine years ago my 1990 erst went into a garage
for a few bits and what I thought was an overheating problem.
Turned out the temp gauge was goosed which they proved by sticking
in a pre 88 sets of clocks (with about double the real mileage on).

Car lay and thought no more about it till it went in for an mot which
had 96000 miles on it and it turned out the fuel gauge in the old style
clocks didn't work.

Put a supposedly working temp gauge from a used set of
90 spec clocks into my original clocks and they don't seem right.
Another two sets of 90 spec clocks bought and tried and I'm no further
forward given the tossers in the garage thought it had ran out of fuel
when it was near full (as I found out when it poured over my feet),
the used clocks are unknown quantities and all have had needles of
for swapping bits or white dials.


original 90 spec with a used(possibly dicky temp gauge)
- fuel gauge goes backwards and temp goes to the red and drops
when ignition turnd off

set 1 90 spec which supposedly are sound
- fuel gauge goes backwards and temp rises to the black

set 2 90 spec - temp gauge dubious
fuel gauge goes backwards and temp goes to halfway.

Since everything seems fine coming from the blue multi plug,
I'm wondering if they have moved a couple of wires in the white multipug
behind the clock.

Can anyone tell me definitively if the wiring layout is different for
pre 90 spec clocks and 90 spec
or if anyone has a 90 spec
car in bits take a photo or give me a run down
on the wiring layout.
I've identified most of the wires from the haynes manual but
tracing the pre 90 and 90 spec tracks behind the clocks for continuity
has me wondering if one or two wires are out of place.

Even if I drain the tank and then fill it to the top to reclibrate the fuel
gauge, I fail to see how the needles being on wrong would cause them to go backwards.

Sorry for this being so long but it's a real pi--er given it taken me
a month to fix all the garages cock ups and get the car starting and
running.

 

there is a 88spec set of clocks and a 90 spec set and the guages are on different way round on them i.e one has temp on left(88) and the other has temp guage on right(90) if i remember right and then you have late efi clocks that have a slightly different board layout again and if any one has a set of efi clocks i'm in need of rev counter out of it please get in touch

 

I had the petrol tank replaced on mine and i think the fuel tank sender is fucked because when i looked when fitted i said to the dude who fitted it petrol garge not working and when i played about with the needle on petrol gauge put it half way up turned on the igition and it went back wards so now i have to have a new fuel tank sender.

 

1 resistor needs changing to make your mfi an efi counter

 

Wondered about the sender on mine but since the tossers couldn't
manage to spot a dead injector and fuel distributor, I very much doubt they would have changed the sender to suit the older gauges? wouldn't fit the tank anyway from what I gather.
The temp gauge that packed up way back then was about 5 months old,brand spank from Ford.
If I recall the temp/fuel gauges were about 80 quid and not fitted by them so no warranty?
All my used clocks are defo 90 spec and all the needle/gauge swapping to try and get a working combo is doing them no favours.