2003 gmc 6.0 3500 Savana. Truck sit for a while ,first time driving it ran fine. After getting it legal a couple weeks later thrower code p0300 with rough idle no power Tested with test light for and have Injector pulse on all 8 cylinders. Cylinders 2 ,7 both have no injector click with stethoscope, both have sparkplug spark. Fuel pressure at prime 58, running 54, holds at 52 .. I have freeze data from only an Acron code reader as follows .
. Freeze frame data , throttle position 0.0% , RPM 630, Load value 5.4%, Air flow 15.52 gr/sec, map sensor 50, short term fuel trim1 0.0%, long term fuel trim1 0.0%. Short term trim2 0.0%, long term trim2 0.0%, short term 3 +50% , long term trim3 -36.3% , short term trim4 +57.0% , long term trim4 -45.2% , speed 0 , fuel system one and two open.
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jtbtheory
2003 gmc 6.0 3500 Savana. Truck sit for a while ,first time driving it ran fine. After getting it legal a couple weeks later thrower code p0300 with rough idle no power Tested with test light for and have Injector pulse on all 8 cylinders. Cylinders 2 ,7 both have no injector click with stethoscope, both have sparkplug spark. Fuel pressure at prime 58, running 54, holds at 52 .. I have freeze data from only an Acron code reader as follows .
. Freeze frame data , throttle position 0.0% , RPM 630, Load value 5.4%, Air flow 15.52 gr/sec, map sensor 50, short term fuel trim1 0.0%, long term fuel trim1 0.0%. Short term trim2 0.0%, long term trim2 0.0%, short term 3 +50% , long term trim3 -36.3% , short term trim4 +57.0% , long term trim4 -45.2% , speed 0 , fuel system one and two open.
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