i started haveing problems accelerating to 3000 rpm once i got there car will lose power until 1000 rpm then accelerate back up repeat its slef then it got worse i had to turn all power on to go only 20 miles an hour

 

{Edit}Wait, you said '91. Forget original post if you saw it.

Check fuel pressure.

 

A friend used my account to post that before. We have now found out that the whole left side cylinders are the trouble makers. The injectors are all stuck full open. Anyone know what can cause this? The engine runs fine once we pull the power to the left side injectors. We will continue to trouble shoot it, but any further help that any of you could offer would be great.

 

Just an update to this. I found this to be a very interesting troubleshoot that I figured I would share with everyone who may have a problem like this in the future.

I apologize to the guy I was helping, if your reading this, I didn't get your name bud! Anyway, he told me that he was driving home and the car (a 91 Camaro) died on him. After that the car would idle, but if he gave it any gas at all it would die. He then found out that if he turned on his brights, the radio, the air cond, any power he could, the car would drive, but only at about 25mph. He managed to get it to the auto lab at our college.

I was involved with a class at the time but I kept being drawn to his Camaro to check it out and find out what was wrong with it. (I tell you, I just get drawn to every third gen I see.) A teacher was helping him at the time and he found that the whole left side of the engine was getting spark, so he pulled the plugs one by one and there was no change by the engine until he pulled a plug from the right side, then the rpms would drop.

So then he was trying to figure out what could be causing that. I went and grabbed a lab scope to check on the injectors and found that nothing would register on any of the left side injectors except one. Once that one injector was unplugged, the engine would immediately smooth out and run good. Why would the engine run ok once the only injector that was shown to be working on the left side was unplugged?

I badly wanted to stay and continue but I had another class to go to by then. I found out later by my teacher that there were two shorted injectors. One injector had shorted out so much that it sucked all the power away from the other 3 on the left side. That was why the other 3 wouldn't show up on the lab scope, but the shorted one would. I forgot to ask but I guess the drivers weren't damaged by the shorted injectors, but they definitely would have been if that had gone on for too much longer.

I thought it was cool.