HELP ME>>>1991 GMC Injectors?

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angelsurfer69

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I have a 1991 GMC Seirra 8clyn. 5.7 liter
one of our fuel injectors was stopped up so we replaced the fuel injectors..we got it primmed and now it barely will run. It spitters and sputters and keeps falling dead. The fuel pump is running good.
So far we have put a new fuel filter, plugs, wires, rotar bug, dist. cap, o2 sensor.
you can see the gas is coming out good on the new injectors they are not stopped up.
yes it ran good before just rich. and no it is not smoking
 
Did it run good before the stopped up injectors? Is it smoking at all when it starts up?
 
I would get some good chevron super unleaded gas, with tecron,which is a fuel system cleaner, if you can get the truck to figure out how to run right, then techron will help by slowly getting out harmful deposits that build up over time from cheap gas, once on the freeway getting a good long drive will get the motor hot, and help burn off contaminants inside the engine. have you been using el cheapo fuel at the gas station?, generally your injectors get plugged up from crap in the gas,they can wear out, but it would be unlikely for all of them around the same time from low quality el cheapo gas stations, some companies buy bid gas, which is contaminated with all kinds of stuff, like water and tiny bits of crap, and if the tanker was not cleaned correctly, or the driver was being sent off on another run and had no time there could be any number of contaminates in cheap gas. but dumping a bunch of cleaner is not a good idea, if you can get this thing running, keep it running, it may take some time for your truck to learn how to run RIGHT OK? it has been running wrong for a while. if you can get it running around town, try to use some good quality gas like chevron. and get it on the freeway and drive, as long as you are onehundred and ten percent sure everything else is right, it should be fine, it is easy to get in a hurry and forget some small thing, so make double sure it is all right. good luck
 
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