powerwrx

iTrader: (11)

will disconnecting my battery for half an hour reset my ecu?

jonnystiv1

yes did it on my sti left it off for an hour and reset it

jonny

jasonius

iTrader: (1)

what MY..?

myblackwrx

iTrader: (1)

Works for me on 93wrx

powerwrx

iTrader: (11)

MINES AN MY94 WRX

myblackwrx

iTrader: (1)

Should work as all you are doing is draining the capacitors in the ecu.
I changed to a z4 ecu which had been unpowered for a few days connected it to the car worked a treat

powerwrx

iTrader: (11)

i have a z4 on now, will the battery trick work the same on this ecu

myblackwrx

iTrader: (1)

should do as you are draining the capacitors.
Might i ask why you need to reset the ecu?

powerwrx

iTrader: (11)

seems abit sluggish just thought it mite help

myblackwrx

iTrader: (1)

After the reset take it for a drive (normal road speeds no need to rag the car) the ecu will adjust itself.
If it stills feel sluggish check Main Heading Goes Here

powerwrx

iTrader: (11)

cheers mate thanks for your help

dynamix

iTrader: (3)

as per previously posted link this is the instant way to do it on a classic and resets on newer models:

Scoobypedia | Trusted knowledge for everything Subaru | ECU Reset browse


and a great trick for fast learning - works a treat for upping the IAM after a reset.

Scoobypedia | Trusted knowledge for everything Subaru | ECU Fast Learning Trick browse

hth

myblackwrx

iTrader: (1)

Glad to help

rentonone

iTrader: (1)

can the fast learning be done on late classics to?

MELLY1985

is the (Classic (JECS) ECU) the common ecu for a 93 wrx import do u no thinking of resetting my ecu using the scooby pedia metod shown aboved wondered if this would sort out my hesitation and rev loss problems since decatting my car any suggestions cheers

dynamix

iTrader: (3)

not that i have seen but i am a million miles from being an expert

myblackwrx

iTrader: (1)

Melly if you have just decatted your car it shouldn't make any difference to the running of your (i've had it done on my 93wrx and its fine).
Yes the JECS ecu is standard should have either u8,w6 or 2c (not too sure of the last number/letter).
You can reset the ecu but its more likely to be coilpacks or sparkplugs causing the problem (i'm not an expert but the ecu is very reliable so not likely to be the problem).
I have a couple of spare standard 93wrx ecus if you want to try a different one.

powerwrx

iTrader: (11)

I HAVE A SPARE W6 ECU FORSALE IF YOU ARE AFTER A REPLACEMENT MELLY

MELLY1985

well i have reset the ecu and all seems to be fine now