KJ laser.. any experiences?

[blindnz]

My mum has bought a 1996 KJ laser 1.6. and is having problems with it using to much fuel 11-12L 100km and running a high warm idle.

O2 sensor and AFM have been replaced, to no avail. Do these have ECU problems like early 90's Toyotas and Mitsubishi's?

Haven't really dealt with them before.

<edit> Im thinking it might be Coolant temp sensor related, that could cause it to run a bit rich and use more gas and also run a high warm idle?</edit>

[andyztouring]

What temperture does it run at on the open road?,if its showing cold,replace the thermostat,which would have been the first thing I would have checked.

[blindnz]

thermostat seems fine warms up normally and stays on the same temp all the time