Ecu Chips

[Aphex]

I got my spi chip from poloace, the only prob you may have on the 1992 is that some of ther ecu's were soldered. See herefor details and listing

[Glenn A]

what is the best way of finding out if it is soldered or non-soldered. is the case any diff. or do i have to look inside.

[Aphex]

what is the best way of finding out if it is soldered or non-soldered. is the case any diff. or do i have to look inside.

using a t10 torx

unplug ecu
unscrew ecu from frame
untorx ecu housing
withdraw inner tray

that will show you if it is soldered or not, mind you your serial numbers on the ecu housing may give it away. Worth plugging those numbers to poloace, he will prb know where to go from there.

[Karl_CLCoupe]

Or even easier, if its one of the very late ECUs, the loom will not plug into the ECU using a spring clip on the plug. Instead you have to move a slider towards the bulkhead and the plug will release itself as you do so. If that is the case with your ECU, it is most definitely soldered.

You might even be able to tell without unplugging anything... if it is a late type ECU with solderd eprom, the wiring loom from the car will plug into the heatsink end off the ECU (the metal part with fins sticking off it rather than the plastic end).

And there is some bad news as well if you do have a car with late spec ECU. An ECU from an earlier car will not fit, as the plug from the wiring loom on later cars is bigger than the socket on ECUs from earlier cars.

I know from personal experience!

[Glenn A]

ok, thanks for the info. i will look 2nite and see which one it is.

[Aphex]

Or even easier, if its one of the very late ECUs, the loom will not plug into the ECU using a spring clip on the plug. Instead you have to move a slider towards the bulkhead and the plug will release itself as you do so. If that is the case with your ECU, it is most definitely soldered.

You might even be able to tell without unplugging anything... if it is a late type ECU with solderd eprom, the wiring loom from the car will plug into the heatsink end off the ECU (the metal part with fins sticking off it rather than the plastic end).

And there is some bad news as well if you do have a car with late spec ECU. An ECU from an earlier car will not fit, as the plug from the wiring loom on later cars is bigger than the socket on ECUs from earlier cars.

I know from personal experience!

but i do have an early aav loom and ecu knocking about if you want to do a conversion

[Karl_CLCoupe]

Hmmmm, wish you had said that a bit earlier! Depending on whether das CL can be fixed, and when I have the money, I may take you up on that!

Karl.