I looked over his data log, and was going to comment, but seemed like he was upset by lack of timely response, and was giving up on us. And he apparently feels we are not any "support".

What he apparently missed when reviewing his log was a single frame DTC 51, which, if valid, would indicate a PCM checksum error. The other codes mentioned appeared for a single frame of data. Not all that unusual to see them, although not necessarily in this number. And they are not disappearing because of any elapsed time or drive cycle consideration. They are disappearing because they are spurious errors.

The last sequence of 25 codes in a singe record occurred on shutdown. That is unusual.

Could be a problem with the PCM, given DTC 51. But there are other instances of whole strings of invalid data in a single record. This can be the result of interference on the data link circuit, possibly due to high voltage interference.

The LT1 is a dying breed. There aren't many knowledgeable people who care enough to put the effort into being a reliable and timely asset to the remaining owners. Shame it's that way, but in my opinion, there's only a handful of us who are holding this site together. And like you, Rob, we are doing it on multiple sites. At this rate, I don't think this site will last much longer. And given threads like this, where the effort is apparently unappreciated, I'm not too sure I even want to keep doing this any more.

 

That seems to be state of the world now.
Nobody can be bothered to learn what they need. They don't want to pay and they want to be spoon fed the info.
I've had my LT1 now 13 years or so and still learning.
Rebuilt the motor & still trying to tune it after several years.
Still learning.

When I got my 1st Camaro (32 years ago) we didn't have google.
I started with a HP books "bolt on horsepower" and went from there.
Parts took 6+ weeks to ship from the 'States. Now I can order on a Friday and have the parts delivered on a Monday.

Don't despair you aren't on your own.
You posted something the other day I had to write down.
PCM cell 18 is a weighted average of the other cells... didn't know that.

Mitch - in a wet UK

 

Thanks for the reply, Shoebox! I love the style of the car. Before we bought it from our granddaughter to get her out of financial trouble, I put the car through its paces and it ran like a scalded dog. That was the last time it ran like it should. After we bought it, we just went for a leisurely cruise, and I put my foot into it a little on the way home, and that was the end of that. I like being able to climb into the engine compartment and get at everything. That doesn't happen with these newer cars. If we get it running right and my wife wants to keep it, we probably will. Going to check out the Opti and a few things that I can get at. After that, I will have someone pick it up. I've heard that it takes 5 to 8 hours just to change the plugs on these cars. Thanks again. A couple of other people have really tried to help.

 

NO......, never say die. When I started building my car up I knew very little other than the basics of fuel injection. I learned about everything I know of LT1 now thanks to this site, but unfortunately time flies and my car got sidelined due to family and a son. Due to circumstances I found it hard to login to spend time reading/helping others when I didnt even have time fir my own car. This site though is a giant archive of info and most problems can be fixed by searching and reading. I was a transmission technician before my LT1, I still specialize in trans. but thanks to having to learn how to do everything myself on my LT1, i was able to make the transition to all around technician, and a very profitable one at that.
I would hate to think about losing the vast amount of knowledge contained here. My car is coming back to life soon, and I still own enough LT1 parts to build 2 supercharged vehicles and then some, lol. I almost just bought another one yesterday. Its not an LS1, but theyre still great engines, aside from the ignition system IMO.

 

Fred

I see your very helpful posts on this and other forums....and also some OP of threads who don't seem to appreciate the replies you offer. Seems some want you to reach through the internet and fix their car for them.

I am a original owner of a 96 Impala SS and it is forums like this with people who bring a great wealth of info who have helped me directly or indirectly by me finding results for whatever issue I may be searching.

Yeah the LT1 heard has thinned and many newer owners of 20+ year old cars with very little or any car/mechanical knowledge with the "post, I want a answer now" mentality are out there. Frustrating.

Just know there are still a few of us lifers out here who appreciate your contributions

 

exactly, the newer lt1 owners are likely ill prepared to tackle lt1 issues, especially the obd1 vehicles. As tough as it was though, honestly that's what made me a better tech. Obd1 just led you in a direction. Obd2 diagnostics got much better, especially in the y2k era. People really think today we just plug in the scan tool and it tells you what to replace, lmao.

Back in the day, us hard core lt1 owners stuck together and I was very impressed how knowledgeable these guys were here for "enthusiasts". I couldn't get enough of this site and all the knowledge it had to offer. Watching everybody's accomplishments, and failures. That's learning. People today just want answers, now. One day I want to grow up to be like Fred.