Is My Power Fc Locked? It Wont Save.

[toy515]

hey guys i bought a second hand power fc for my s15 rb26 but it wont save new settings. i bought 700cc injectors and 2 rb25 afm dialed them in by using paulr33 power fc faq and that saved but i try taking fuel out in the injector correction and turn my car off and it goes back to what it was? i dont understand why one things saving and the other ones not?

[Guilt-Toy]

look at the power fc faq. you have not installed the power fc / loom correctly

[Cartman]

look at the power fc faq. you have not installed the power fc / loom correctly

agreed, the main relays need to be rewired for it to work.

[toy515]

i read the faq but why does somethings save and some dont? is it posible that it could be locked?

[Guilt-Toy]

the ecu writes the changes to memory after you switch off the ignition. there is a relay that keeps power to the ecu for a second or so after the ignition is switched off. you need to set this up correctly.

[toy515]

when i switch my car off it takes about 2 seconds to turn off?

[Cartman]

when i switch my car off it takes about 2 seconds to turn off?

the 2 relays in the rb26 harness that are located about 15cm away from the computer need to be rewired powerfc's do not have a lock function as far as im aware.

[paulr33]

hello

are you using this screen?

if so, this is the ignition and injection temporary adjustment screen

its meant to let you test and try out corrections to the whole tune

ie different fuel, different base timing, other engine changes etc

once you are happy with the amount of correction required you need to either

a) alter the injection and ignition maps accordingly

b) alter the airflow correction accordingly

c) alter the injector correction accordingly

or sometimes its a combination depending on what you are trying to do

but yes, the screen above, wont save, as its not meant to, it resets to 0 when you power the car off

[The Dan]

If you are using a hand controller to change the settings then they can possibly be locked. The datalogit has the ability to lock specific setting screens.