Originally posted by Mark E:
[qb]Trionic first appeared on the 2.3Ts and Aeros in MY93. MY94 onwards, a number of things changed including:
<ul type="square">
[*]the head
[*]the gearbox
[*]the ECU
[/list]
These are the most significant differences.
[edit]Pics that may help
a) the battery end of the head showing the year/month it was made. This example is 1990, and the position of the dot indicates Dec. If the car says 93 and anything after about Oct/Nov, there's a good chance it's MY94.
B) a pic of the gearbox ID plate (towards the rear) from my MY93 CS
A 1994 registered car could be either of these MYs [/qb][/b]