Does that part number match one in the chart on post #2? I'm curious so I can update my list too.I got the original OEM number and am going to verify the replacements I got are compatible.
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Does that part number match one in the chart on post #2? I'm curious so I can update my list too.I got the original OEM number and am going to verify the replacements I got are compatible.
Added note:I have an old laptop(using Vista OS)that I monitor my engine with and also use Tuner Pro RT...very helpful.Maybe I can help..My Burb is a '95 with a big block and sounds like it's the same setup as yours.This year big block needs fuel pressure to be 26-31 psi.The cold idle as Shurkey says is controlled by a diaphragm attached to the side of the tbi unit and that is controlled by the idle solenoid which is controlled by the pcm.There is a vacuum line going from the base of the tbi unit to that idle control solenoid and then on to the vacuum diaphragm on the side of the tbi.there should also be a wire connector attached to the the idle control solenoid so the pcm can turn it on and off.When the engine reaches a pre designated temp the pcm will activate that icm solenoid and cut the vacuum therefore releasing the idle vacuum diaphragm and dropping the idle to what the pcm wants.Hope I explained this correctly
I downloaded two different 1995 manuals--the regular '95 service manual, and the '95 Driveability and Emissions manual.Thanks for the info. I will be doing more research on PSI requirements for replacement injectors. I just find it odd I have a factory GM service manual and it says 10-13psi but I can't find the specs for the OEM part number (17113080) or a replacement for that number to compare what I have to use as a replacement. I really don't want to change the fuel pump in the tank. It's been running great for years with the low pressure pump.
This assumes you have an L19, VIN N 7.4L. I'm sure you do...that's the only one listed for '95 C/K trucks.Start engine and observe fuel pressure reading. It
should be 62-90 kPa (9-13 psi) on 4.3L, 5.0L and 5.7L
engines. On 7.4L engines the fuel pressure should be
179 to 220 kPa (26 to 32 psi).