EEC IV Unit Question

EEC IV Unit Question

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TVRees

Original Poster:

1,080 posts

112 months

Sunday 24th December 2017
quotequote all
Merry Christmas Everyone ! xmas

I have a 90GB-12A650-GA Ford EEC IV unit as a spare.

Does anyone know if this will function properly in an S2 ?

Cheers
Tim

mentall

453 posts

130 months

Sunday 24th December 2017
quotequote all
Fordopedia doesn't show a 90GB-12A-650-GA unit. However it does show an R90GX 12A650 GA, for a "SIERRA MT75 WITH CAT. AND LAMBDA Engine: TV29EFI".

The R is for 'remanufactured'. Who knows what the 'X' means, replacing the 'B'?

The '90' suggests a 1990 - onward unit which would indeed have a MT75 'box in Ford applications (although not in TVR's)

So POSSIBLY if yours is an S2C (ie with lambdas) then it will work.

If not, then it POSSIBLY won't.

It's worth looking in the Fordopedia page for the ECU reference on your existing unit, and seeing which Ford cars it is used on.

Merry Christmas!

Edited by mentall on Sunday 24th December 22:05

phillpot

17,114 posts

183 months

Tuesday 26th December 2017
quotequote all
mentall said:
So POSSIBLY if yours is an S2C (ie with lambdas) then it will work.
Was there ever such a car?

Whether it helps or confuses this one is from a non cat S2....................




As my spare I am presuming it will work quite happily in my non cat S3 should I ever need it?

ETA....
mentall said:
It's worth looking in the Fordopedia page for the ECU reference on your existing unit, and seeing which Ford cars it is used on.


2.9 manual, no Lambda's or Cats.. purrrrfect wink

Edited by phillpot on Tuesday 26th December 17:05