Recall faulty ECU's for years 91-95 3000GT and Stealth

[danaocity]

I have 91 3000GT I replaced the engine twice and trany once. When I open my ECU the capacitor leaks and eat some of the lines or trace. I sent it to rebuilt the ECU for $100 cause it's on sale and replace the capacitor of my TCU by myself cause it's not look bad. Since then my car runs fine.. The first time replacing the engine cost me $ 1,200. The second time $900 excluding my labor. My transmission it was rebuilt for $1,800.

[rush6432]

Lol if this is gonna happen you know you might as well throw in the 90-94 dsms and galants and mirages and all other 91-94 computers as they ALSO had the problem...i dont think your gonna get them to go for it but its worth a try.

[ProwlerGT]

Originally Posted by danaocity

I have 91 3000GT I replaced the engine twice and trany once. When I open my ECU the capacitor leaks and eat some of the lines or trace. I sent it to rebuilt the ECU for $100 cause it's on sale and replace the capacitor of my TCU by myself cause it's not look bad. Since then my car runs fine.. The first time replacing the engine cost me $ 1,200. The second time $900 excluding my labor. My transmission it was rebuilt for $1,800.

Was your engine both times and tranny really bad or was it the ECU and TCU the whole time?

[ProwlerGT]

Originally Posted by rush6432

Lol if this is gonna happen you know you might as well throw in the 90-94 dsms and galants and mirages and all other 91-94 computers as they ALSO had the problem...i dont think your gonna get them to go for it but its worth a try.

Maybe 3S would be a start and phase into the others if it makes any progress at all, but it seems as though making an argument for the dsms, galants, and mirages as well would definitely beef up our ammo. Its just hard to say whether or not including them along with the 3S' CAPs argument would hurt or help. What ya'll think?

[ProwlerGT]

BUMP. No I haven't forgotten.

[badass3000]

interested,
my ECU just had a spasm one day and gave a constant ground to injector #6. Filled the block/heads/manifold/turbo with raw fuel, messed up a headgasket but could have seized the engine or spun bearings.

These ECU truly are crap, good design, nice features, just shotty build.

[Hammer]

I would like to see a recall as well. I want to help!

But let me play the other side role (Mitsubishi exec for a sec)

Lets see you know that the ISC is only good for 50,000-100,000 miles right?
And when this part fails it can damage the ECU.
So you all want us to replace these ECU's for free when many of you
might be operating cars with bad or about to fail ISC's. Put a brand new
ECU into a car with a shorted ISC and you will blow out the new ECU.
And this ISC is a recuring maintainence nightmare. To be really sure
to protect your ECU you would have to replace it every 45,000 miles or so.
And 2 of these ISC's cost the same as 1 ECU. So do you chance it or not?

Ok if you are not aware of this ticking time bomb in your car then maybe
we can hold Mitsubishi liable for the repair to the ECU for failure to notify
owners of a recuring must replace item the ISC.
But it would be a court battle
there is no way Mitsubishi would cave in on this out of good will toward
owners of cars they no longer make. And it sounds like they want out of the
ECU support bussiness as well.

Now I agree that these ECU's have other problems beside the ISC.
And the recall is to fix these other issues mostly.
But the ISC issue alone is enough to get Mitsubishi off the hook
or at least their lawyers will focus on that aspect of it to our detriment.
Not sure we can win this even if we throw a ton of money at it in a court
case.

[Hammer]

Here is additional info I just found on the internet about this issue,
I hope this helps some people!

Info from: http://www.ecmtogo.com/

IMPORTANT NOTE FROM BELOW: IF YOUR ECS HAS FAILED IT CAN CAUSE
YOUR ECU TO FAIL AS WELL. If your 3000GT/Stealth is intermittently or consistently not firing 1 of 3 coil packs, therefore running on 4 of 6 cylinders, it is likely due to damage received from ECS


Mitsubishi/Honda ECM failures -- Fact or fiction:

The fact is, the Mitsubishi and Honda models of ECMs and TCUs manufactured within the years of 1989-1994 utilize certain electrolytic capacitors that after a certain number of hours or mileage, begin a systematic breakdown. These capacitors eventually break their seal and leak the electrolyte which is a corrosive substance. This corrosive substance actually destroys the area of the mother board computer chip and any adjacent components will be adversely affected. So the longer one waits to repair the unit, the lesser a chance there is of reparability. Most units are repairable unless there is damage to a part that is not made available to us. Presently, their are specific components that are damaged occasionally that we can not purchase. We are the first company to specialize in this field and we have the best technicians in the business. The hardest component to acquire is the processor chips. The processor chips are imbedded chips or IC chips that contain vital information which is copy written and is likely not to be able to access. In most cases when the IC chip or chips are damaged, they will experience a heat to the imbedded chip which will damage the chip and often a heated IC will have a variance on the smooth surface of the chip from the heat. The variance may be in the form of a bubble or rise or in some cases a hole or crack is blown though. In these cases, we can possibly change the IC chip if another donor computer is available. This will be the only time the repair cost will be affected due to the fact that often we must purchase the unit for the specific IC application. When this occurs, you will be informed of the change in the price quote and upon permission, we will change the IC chip processor for the additional cost. The warranty will not be affected.







Specific to Mitsubishi 3000GT & Dodge Stealth:

We have discovered that many of these cars (depending on model type) have a suspension control module ECS. These suspension control computers have similar faulty components therefore they are also prone to failure. We offer repair service on these suspension control computers as well. Be sure to check if your car has this module because they can and do damage the engine control computer when they fail, which can damage the fuel control on the ECM which can render the unit disabled and possibly damage the unit beyond repair. If your 3000GT/Stealth is intermittently or consistently not firing 1 of 3 coil packs, therefore running on 4 of 6 cylinders, it is likely due to damage received from ECS.





Specific to First Generation OBD-I (1990-1994) Mitsubishi DSM ECMs:

If your model car fits the category listed on our HOME PAGE it is a high probability that you need to replace your ECM or you will eventually.

Between 1989-1994, Mitsubishi manufactured Electronic Control Modules (ECMs) with great design and precision. One problem has been revealed over the years: some of the components that were used have shown a tendency to fail, especially by heat.

The most prominent candidates for failure are those installed during the 1989 through 1994 model years with 60,000 or more miles. It is also true that hotter climates contribute to increased failure probability. In other words, the Southern States: Texas, Florida, Georgia, and even Hawaii, have a higher number of failures than the Northern States.

The supply of Mitsubishi ECMs new and used has been greatly reduced due to the growing competitiveness of this industry. Keep in mind most of these quote-unquote "Rebuilders" are more than likely people that have seen the trend in Mitsubishi ECM failures and are trying to capitalize. I'm all for free enterprise -- after all, this is America and may God Bless her (and all of us for that matter) but don't let yourself be fooled by the new kids on the block. Nor should you be mislead by the low prices of some of these folks. If it sounds to good to be true and too cheap to be quality, it probably is. You know you can't wager your safety or that of your family or customers to the opportunity of a "great deal". Check references! A lot of these guys offering warranty's and advertising themselves as rebuilders have not been in business long enough to match the warranty they are offering!

We are proud members of the Better Business Bureau and the Automotive Parts Rebuilders Association. We HIGHLY RECOMMEND you check with the BBB before you give out your hard earned money to someone who may be well behind the learning curve for Mitsubishi ECM repair. It is simple to do and may save you money and time. If nothing else, ask the prospective supplier or "rebuilder" if they are members of the BBB or if they have ever had any complaints registered with the BBB. Also be sure they have actual test vehicles to test the repairs.

Also be aware of the used Mitsubishi units often sold in salvage yards. Although the automobile salvage and recycling industry is vital to my company and the world even, make sure you understand the difference between a "USED" unit and a "REBUILT" unit or even a "REPAIRED" unit. All these are different classifications. Many times when you are dealing with a foreign manufactured ECM not in the Mitsubishi hot zone, a used unit is a solid safe and money saving alternative. But it is VERY IMPORTANT to remember any 1st generation Mitsubishi product (1989-1994) will have the same manufactured components that are often the problem with the ECMs failure. So before you buy a used unit with little or no warranty just to "save a few bucks", factor in the failure probability.

Our knowledgeable staff will help you with better understanding the reason you may be experiencing computer problems or even help prove you don't have a computer problem at all. That's right, Automotive Computer Supply can test Most Mitsubishi units in the "Problem Zone" (manufactured years 1989-1994) and tell you if it is the ECM or another possible related or unrelated electrical problem. This service is provided FREE!!! Just pay for the shipping to us and back.. We would be happy to help you SAVE MONEY!!

[iGoRa]

1991 Mitsu GTO, I had mine replaced , not only ECU ,but ECS as well

[DoctorDex]

Add me to the list too.