rs2/s2 ecu differences

[peter]

i have been looking at 034s chipsets for these ecus,they say to check the resistance between pin 7 and pin 25 to check the resistance.before ordering chipset.
rs2 18.77k
s2(aby/aan) 19.38k
mine was originally an aby ecu but has had various chipsets over the years and the resistance is 17.93k.
034 suspect it has been altered in some way.can anyone explain the differences and what i can look for on the boards to see if they have been doctored other than being socketed for chips.
thanks

[Smiley]

The main difference is of course the 250/300kpa sensor, I could imagine this difference to an indicator at the pins, IF these are conected to the sensor.
Maybe anybody has the pinout laying around?

[Smiley]

ABY ECU pinout is here:

http://s2central.net/motronic_pinout_ABY.html

MAF connections, so i was wrong with my assumption.

[4WheelDrifter]

Pin-outs are the same between ABY,AAN and ADU.
MAP sensor is 300Kpa due to the extra boost. Also the R201 resistor is different to alter the fueling.

[peter]

i have found the r201 resistor it has definately been changed,it measures 6.18k.
does anyone know if this is s2 or rs2 or something else.