bogus wrote:
UPDATE:

I am so damned pissed right now. It has all the appearances of an unrepaired ECM.

I am getting the same damned codes... same damned results.

Tomorrow, I am going to have to take apart the dash to get at the damned CCM and confirm the harness.

The receipt from SIA indicates only a "reflowed unit." It makes me wonder if they actually a) read my letter and b) tested the damned unit.

As you can tell, I am not happy right now... for some reason, I knew this was going to happen.

bogus wrote:
I just won another ECM on ebay... now I have 2.

The question is if the one at SIA is ever going to work again...

It was $229 for a good working used unit.

93Moneypit wrote:
Cool that means both my ECM are OK I'm going to change out my opticrap this weekend for the forth time
This time with the MSD I'm really getting tired of changing those dam things

Ultraman wrote:
I would drop a note to SIA and tell them you are unhappy that they could not solve your problem since your ECM continues to not function. Did you spend money with them? It you did I would ask for it back. Then the ball is in their court. If they say too bad, so sad, then you move on and let everyone know that SIA is not that great of a deal.

You may not win but you would have left it up to them to make it right. That's all you can do without a lot more work and frustration. It's weird that they can't find the problem.

Pcolt94 wrote:
I have seen the external pins of a connector open up electrically to its internal connection within the box. This can happen under the weight, load, pressure or torque produced by the external connector on the connector of the box.

Pcolt94 wrote:
Just a few thoughts

Having worked 35+ years in commercial and military electronics I have seen, repaired and supported a lot of electronics not to mention automotive. Sometimes it's tough to fix a system with loops, feedback and bus talk, when components seem to check good individually.

Getting the ECM checked by a dealer might, or might not tell you what you are looking for. The thought is definitely positive to yield the facts or truth. One better is to try the ECM in another corvette of same vintage. There nothing like a functional test for best verification. Sometimes simulated tests just don’t show the real story.

I have seen the external pins of a connector open up electrically to its internal connection within the box. This can happen under the weight, load, pressure or torque produced by the external connector on the connector of the box. I'm basically saying that this condition may not exist when it is placed on a test bench and the connectors are just laying there nicely. Just a possibility.

If you have an indication on the dash (SES light) or another condition where an assistant can look at while you move or wiggle connectors and harness, something might show up. Having put another ECM in your vette and getting it started having normal conditions sure does look like you had a bad ECM. I would then put the original ECM back in and check results. Finally I would try if possible the suspect ECM in another car. Having cross checked and double checked in this way then might give you a warm feeling of what you really have and then you can go back to SIA with some very confident facts.

Of course this is my approach and just suggestions. Depending on whether you can come up with another vette may limit doing these things but might just give you some new thoughts on the situation and you approach.