OP isn't a regular here anymore and I'm not ECU savy : but the 1st question is But why?   is your car Auto?

I love updates like these hah : proof people read (or search) the forum & why I try & help keep it alive  

The year is 2026 and I've had a WRX NA Bug eye for 15 years (that's 2x cam belt kits if you're counting) and the trim-extras list goes like this: HID headlights flared guards  Wrx seats  raised suspension  boot spoiler  Rev counter centred in the instrument cluster Momo steering wheel with powershift tiptronic  fog lights  side skirts  Wrx brakes Twin piston slide calipers on the front    BTW I still get 7.8 ltrs/100km out of it and it's not fast but nimble enough.   

ive just got a new bg5a with a 20h sad part is primary turbo is cooked, however i have all the bits to single it, although im wondering if i can use the 4b ecu ive got apparently its an auto sf forry ecu, if possible to use what does it invole any help would be great please and thankyou 

Hello all, I've just installed my original Lamco oil temp sensor in the drain plug location (since it was oil change day), car is a GF8. However I've found it hard to get a consensus from online sources as to what the expected operating values are (with so many people having to resort to aftermarket sensors), as I went for a very spirited long drive ie 60km of B-roads, and never saw temps rise above ~90C with ~70C being the norm during mild sections and normal town driving (ambient temp was ~20C). I have the Torque app and coolant temps reported by ECU were reported as consistently ~83C-ish during normal driving (though i wasn't keeping an eye on this during the spirited driving). So I cant imagine what kind of environment would lead to the gauge reading 120C-130C which is well within its range (tracking the car in 40C temps maybe?). The Lamco manual isnt helpful as it just says expected temps are the result of the environment... Anywho, does anyone have an original sensor in the drain plug location and can confirm I'm in the ballpark for expected values? I'm fairly confident the sensor/gauge combo is OK as I stuck it in a jug of hot water just off the boil (well as quickly as I could get it outside to the car) and got a reading of 90C-95C in the weeks prior to actually installing it in the car.