Question about 1994 GMC Sierra
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Posted on Jan 02, 2017
these vehicles are known to have problems with the fuel pressure regulator/and also fuel pump. you need to hook up a fuel press gauge to see how many lbs.ther are. being off 1-2 lbs.from spec will cause a no start that will drive you crazy.
Posted on Nov 15, 2008
It can be done but it is very time consuming.
I use an 87 Astro van intake sensors and computer on my 86 OMC.
After six years I am still playing with it.
Runs good and easy on gas.
Got lots of info from DIY-EFI.
You HAVE to change programing in the computer.
I am running a closed loop system with one oxygen sensor in the starboard manifold.
Your 94 computer is not as good for a boat because it also controls the transmission.
Just to give you an idea what your in for.
Posted on May 03, 2009
the injectors are fired thru the engine cotrol module but it gets its signal to fire from the pick-up located inside the distributor if you are loosing injector pulse only the ignition module is bad if you are also loosing spark when you loose injector pulse your pick up is causing the problem if you replace the pick-up i recomend you change the ignition module when doing so because they work together and you have to remove the distributor to change the pick-up
Posted on May 31, 2009
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