Can anyone tell me if the st170,s trip computer can tell the avarage mpg like some of the others as well as mileage or trip mileage, cheers

 

No the display is only for milage and trip milage.

On some focus' they have a fuel computer that fits in where the oil temp and oil pressure gauges are on the ST170 dash. You could fit the fuel computer but you will have to loose the oil gauges, (not worth it IMO)

 

thanks for the reply but ive just seen on ebay some one says for a £1 they will tell you how to use the mile meter for other readouts inc fuel, etc what do you think?

 

what a fookin con lol.

There is a service mode you can put the car into to check read out's from the engine, ecu etc. to enter it you hold down the trip reset button and switch on the ignition and then after about 5 secs release the trip button and the car is in service mode. press the trip button to cycle throught the dash test mode and the read outs i.e water temp, oil temp, oil pressure, battery voltage, ecu hex reading, fuel gauge calibration.

The fuel read out isnt mpg its just a reading off the fuel tank sensor i think it reads from 256 (full) to 0 (empty) used for checking calibration.

BTW i just i just saved you a £1

 

Ive tried this and its good but does it harm your car in anyway. The first time i tried it, i saw all the needles go up and thought i fooked it.

 

No it's all fine - the RS has the same functions on it's digi dash - tells you boost pressures etc. Very useful.