bgd73 Posted May 26, 2006 Share Posted May 26, 2006 Is there afuse for ECU? I turned key on and no start. to see there is no blinking light on ECU. Is it dead? Link to comment Share on other sites More sharing options...
idosubaru Posted May 26, 2006 Share Posted May 26, 2006 fusible links are next to the battery under a black cover. check those. remove and reinstall, making sure they have good contact. do you have any power at all? are the battery and connections good, tight and clean? have you done anything to this car recently? or it's been a daily driver for a year straight and then the next day it does this? Link to comment Share on other sites More sharing options...
bgd73 Posted May 26, 2006 Author Share Posted May 26, 2006 Have power turns over, noticed the CEL light no go and no start. Checked ecu light, nada. I was messing with wires near MAF, and heard something click on SPFI unit. I went to start car and no go, just turns over, all fuses good and fusible links. Somethin is stinkin from ECU. I think I killed it. Anyone have one? This is what mine has for numbers (2wd 5spd, spfi): Link to comment Share on other sites More sharing options...
idosubaru Posted May 26, 2006 Share Posted May 26, 2006 i would check those wires you were messing with. if they shorted and damaged the ECU they will likely do the same to the next one you install. that's nuts, you can really smell it? Link to comment Share on other sites More sharing options...
bgd73 Posted May 26, 2006 Author Share Posted May 26, 2006 ECU really stinks. I Left it outside. Having built my personal computers and killed them for years now, I would think a dead board would smell familiar. This one has an odor all its own . I didn't hurt the wires, it was my simple mistake.I took cover off, power on, no heat on regulators/resistors nothing.Gotta remember this sensitive subject next time. found replacement at salvage cheap, same number (396).Thanks for help. Link to comment Share on other sites More sharing options...
Loyale 2.7 Turbo Posted May 26, 2006 Share Posted May 26, 2006 So... Have you Tried the New ECU? It Was the Problem? Link to comment Share on other sites More sharing options...
bgd73 Posted May 26, 2006 Author Share Posted May 26, 2006 I am certain it was problem, I am currently no ride.. it has been awhile since that has happened.Only event number 2 since 1997 (with just 2 old subes) that has left me stranded, and this second time is my stupid fault... Loyale 2.7 turbo, i used your weber pics on my site, thanks! Link to comment Share on other sites More sharing options...
Loyale 2.7 Turbo Posted May 26, 2006 Share Posted May 26, 2006 ...Loyale 2.7 turbo, i used your weber pics on my site, thanks! OH! Thank You... I`ll check it now... Did you Read your Messages today? I Sent one to you, just to Thank you So Much... Best Regards. Link to comment Share on other sites More sharing options...
bgd73 Posted May 26, 2006 Author Share Posted May 26, 2006 I found 3 numbers for an spfi ECU. aa396, 397,398 Can anybody tell me the subtle differences? I have a chance to get a different one than original number. Link to comment Share on other sites More sharing options...
hooziewhatsit Posted May 26, 2006 Share Posted May 26, 2006 does your horn work? I believe it's on the same fuse as the ECU. However.. the bad smell doesn't sound good either way.... I don't know what the differences are between the part numbers... but I wouldn't mind finding out. Link to comment Share on other sites More sharing options...
bgd73 Posted May 26, 2006 Author Share Posted May 26, 2006 I would guess the differences to be turbo, non. I did find a part that fried (at least one) I found the clock was ridgidly placed in and surrounded. I wish pc's did that..Here is a pic of inside the 13 year old super computer. http://www.ultimatesubaru.org/photos/showphoto.php?photo=11205&cat=500 Link to comment Share on other sites More sharing options...
Cougar Posted May 27, 2006 Share Posted May 27, 2006 After looking at the picture it looks like resistor R1, in the lower right corner of the picture, is burned. Link to comment Share on other sites More sharing options...
bgd73 Posted May 27, 2006 Author Share Posted May 27, 2006 Yep. There is also an odor coming off the heatsinkers (heatstinkers ) .I'll just get a new board. 13 years and a precise clock ought to be a freaky nuclear byproduct by now running that long.. . Cant just dip that in the degreaser and call it good. Link to comment Share on other sites More sharing options...
bgd73 Posted May 27, 2006 Author Share Posted May 27, 2006 Ok, going for a longshot. Any ECU guru's here? How about a Zalman fan resistor swap (increase resistance) over the old one.I am completely stuck until Tuesday! Anyone have an ECU apart with the numbers on the burnt resistor in photo (R1) Link to comment Share on other sites More sharing options...
bgd73 Posted May 27, 2006 Author Share Posted May 27, 2006 The 56 ohm Zalman pc fan resistor has worked. Runs even smoother for some reason.... Link to comment Share on other sites More sharing options...
Cougar Posted May 27, 2006 Share Posted May 27, 2006 From the numbers I can see on the resistor it looks like the resistor value may be 6.5 ohms. You could try to replace it but the problem is what caused the resistor to be burned in the first place. Excessive current caused the damage and the circuit that the resistor provides power to needs to be checked out. It may provide power to the fuel pump, injectors, or.... something else. If you put in another ECU and the problem is still there then the new ECU will be damaged also. Try to see what the resistor ties to and if it goes to an external pin on the ECU to help find the area to check. Link to comment Share on other sites More sharing options...
bgd73 Posted May 28, 2006 Author Share Posted May 28, 2006 The problem was all me, simple mistake, quick zap. It is fixed now. I do not have 6.5 ohms on R1, it is now 56 ohm monster. I have been driving for 40 miles or so local today, runs great.When cold the resistor is an obvious millisecond(s) delay, but no problems.Thanks for reply. I will pickup another OEM ecu in few days. Link to comment Share on other sites More sharing options...
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