98 blazer fuel pump?
#1
98 blazer fuel pump?
No Start.Pressure 62 psi when pump runs.58 when pump stops.Holds at 58 for 10 min.Have spark.Will run with the aid of carb spray but dies.Security light goes off on dash and all other lights work.All started with dead battery when vehicle sat for a few weeks.Otherwise had been running fine.No codes in system except c0222 for rt. wheel sensor.With gas from vehicle was able to start a small engine So I assume gas hasn't phased out on me.New cap and rotor. Wires fairly recent.What am I missing?
#2
It definitely sounds like a fuel supply issue. Almost like something is prohibiting the injectors from opening. You could back probe the injector wires and test with a noid light to confirm that theory.
#3
Checked with noid light
Well I checked with a noid light and each injector plug pulsed.Would I be able to check injectors themselves by using pressure gauge.I would build up the pressure then remove fuel pump relay then crank engine and see if pressure drops hence meaning injectors plugged or not?
#4
Can you access the injector balance test with your scan tool? Gotta be a good scan tool, the cheapies won't access it. If so, that's the easiest way to compare/check injector performance.
#5
No unfortunately not.But thanks
Thread
Thread Starter
Forum
Replies
Last Post
BouncingRadical
2nd Generation S-series (1995-2005) Tech
14
11-27-2015 12:30 AM
cide
2nd Generation S-series (1995-2005) Tech
1
11-07-2009 01:26 PM
upblazer95
2nd Generation S-series (1995-2005) Tech
4
03-08-2009 07:15 PM
mytruck2
2nd Generation S-series (1995-2005) Tech
11
12-13-2006 04:50 PM