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Where to repair ECU


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9 replies to this topic

#1 Petersubaru

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Posted 18 September 2004 - 09:31 AM

anybody have experience or know of someone that rebuilds ecu's for subaru

#2 roxtar

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Posted 18 September 2004 - 12:05 PM

the bad news is that an ecu is a computer will all hard-wired software. so if something goes bad with it... its turns into a paper weight. you're better off trying to find one from a junk yard for a car with the same engine/fuel system as yours.

#3 Cougar

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Posted 18 September 2004 - 02:19 PM

I have repaired a few of these units. Two of them were for a '88 GL-10 that had the same problem. A transistor that drives the power transistor for the fuel pump ground went bad and for $1.80 I replaced the bad transistor.

Another unit had a problem with the IC that turned on the ECU light. Replacing the IC fixed that.

What kind of trouble are you having with your unit?

#4 Petersubaru

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Posted 20 September 2004 - 09:10 AM

At the moment I am not experiencing any problems with the ECU, but only thinking about some alternatives if problems occur and looking for ways to be flexible so that I can take the 86 GL10 turbo where ever...for those who have driven on the Alaskan Highway and far further north then Anchorage to the Artic circle will know exactly what I am talking about...I have been up that way twice and some people will say that maybe I should buy a new car...but on several occassions I have seen $40-$60K cars stranded in Norhthern BC/Yukon with the only option of towing them a 1000 miles to the dealer..then again maybe I should keep on travelling with my carbed subaru...any further info would be appreciated...Thanks....

I have repaired a few of these units. Two of them were for a '88 GL-10 that had the same problem. A transistor that drives the power transistor for the fuel pump ground went bad and for $1.80 I replaced the bad transistor.

Another unit had a problem with the IC that turned on the ECU light. Replacing the IC fixed that.

What kind of trouble are you having with your unit?



#5 Cougar

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Posted 20 September 2004 - 11:15 AM

You can get refurbished units but they are still fairly expensive, at least over a unit from a salvage yard.

I live in Anchorage so I'm fairly close by the area you are talking about. There are some other members around here also.

#6 Petersubaru

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Posted 20 September 2004 - 12:03 PM

just one question ...refurbished from where??...

You can get refurbished units but they are still fairly expensive, at least over a unit from a salvage yard.

I live in Anchorage so I'm fairly close by the area you are talking about. There are some other members around here also.



#7 Cougar

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Posted 20 September 2004 - 12:50 PM

I purchased a refurbished ECU through a locale auto parts store here in Anchorage. This was before I ended up fixing my original unit. I wouldn't worry too much about the ECU failing on you. They are usually very reliable. Mine gave out after I installed a new replacement alternator because the original one was having diode problems. I think the little extra voltage from the new unit caused the transistor in the ECU to fail. A shop had gave me one to work on that fit my car and the exact same transistor in it was bad also. I think the transistor either had a production line fault or was not the correct one to use for that design. A generic replacement worked ok. Another car I had of the same year and model didn't have this trouble.

If you are going to purchase another ECU for a spare I would try looking for one at a salvage yard, you should be able to get one fairly cheap. You can plug it into your car at the yard and see if it works. I would leave it in place and keep the original as a known good spare.

#8 QikRXTurbo

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Posted 22 September 2004 - 03:49 PM

The main issue I had with my standard ECU was dry joints on the main board. It used to cut out if I went over any harsh bumps etc
After resoldering it about 4 times, I got jack of it & bought an aftermarket ECU...

#9 Hank Roberts

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Posted 02 February 2006 - 07:40 PM

A year ago when I was first starting to try to get my 1988 GL running, I found a place in Great Britan somewhere that will take, check/diagnose, and if needed repair ECUs. I didn't contact them, and I'm afraid I've lost track of it, but it's got a web page somewhere.

I have a "spare" -- the '88 didn't pass smog 'til the mechanic replaced the ECU (this was before I bought the car). It supposedly had a 'bad internal ground in the ECU connection to the EGR' but I doubt it. The code came back, after I bought the car; they'd left one of the two EGR ports plugged solid with carbon.

I suppose sometime I should swap them again just to see if it works.

After I redo all the ground wire connections ....

#10 grossgary

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Posted 03 February 2006 - 06:55 AM

the ECU is small and lightweight, just carry an extra one somewhere. great insurance if you're worried about it, takes about 3 minutes to swap.

extra alt, ECU, coil, starter, ignitor, fusible links, full size spare and you're golden (assuming your t-belts and ignition are good, which i assume would be on a long trip).




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