I've been trying to diagnose what's wrong with my car, but it's a toughie. It idles rough, and when it gets revved up, it cant keep a steady rpm. When i put it in drive, it acts way worse. I logged data with WinALDL to see if one of you guys could possibly see a number or value way off. It started in the garage, backed out, then down the street normally. Turned around and floored it. It ran horribly... Pulled it back into the garage and turned it off. Its a raw text document, and I can answer any questions you might have. Please help me, cause I'm baffled.

Thanks,
Cornholio

 

The one thing I cannot find in the data is injector pulse widths. Also, knowing the fuel pressure would be helpful.

 

Is there different software that would tell you this? The fuel pressure is at about 11, but every now and then looking at the gauge under the hood, it bounces. It jumps down. When I look at the injectors, they dont spray for a split second, and the gauge doesnt have enough time to go to zero and back up.

 

Well, it was the alternator. The battery would give it enough juice to run in park, but under load it completely failed. New alternator, runs like it did before. Dissapointing... Looks like it just needs a carbed 350 now...