Okay, started to look at my ECU for stored error codes - black connectors connected, then turned IGN switch to ON

 

getting a long green bright LED glow, followed by quick off, second long green bright  glow, quick off, third long glow  after a break shows same sequence - started to movie mode it in my camera to use a counter on it - battery in camera went flat as expected

 

So, would read that as a code 3-0 yeah ?

 

OK so, online manuals for 88 XT don't have a code 3-0

 

Is this a specific error code reserved for the short run 87.5 XTT ?

 

Anyone, such as Gloyale have a copy of code 3.0 diagnosis for 87.5 ?

 

co-operation is always appreciated

Code 3 is a model designator.

 

Means MPFI, turbo, Manual.........in the US it can tell us California or 49 state, manual or automatic

 

The ECUs will flash 1-8 here, with each number being a specific identifier.

 

Since it's flashing that at you it means there is no stored codes.