hi have 1990 5.7 19,333 miles 7 injectors ohms at 19 one ohms at o.
un plug the one injector mis and surges goes away.is 19 ohms to high for the 7.and if it is ok can I get away with changing one injector.thanks ron.

 

of course the one inj. at zero is bad....but the other seven should ohm between 12-14...I would replace all of them...and that is not uncommon for those to go bad...especially if they are OE. you could get away with one....but I would bet that the others will follow suit and you'll be in the same boat again. my shop policy on certain vehicles....like older gm multitec injectors being one of them....is to replace all the injectors.