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In this video I will walk you through some basic tests on verifying spark, injector pulse and fuel pressure. All you need is a digital multimeter and a small pocket screwdriver. I will be using the Power Probe IV but this is not a necessary tool to handle this problem. I chose this particular tool due to the long reach of the cables and the direct connections to the battery. This allowed me to not worry about finding a good ground underneath the rusty vehicle when i came time to verifying the fuel pump power and ground.
Engine Performance Diagnostics chapter 16
- cranks but does not start
- replace faulty fuel pump
- how to test for spark
- how to test for injector pulse with a Power Probe IV
- how to test for fuel pressure without a gauge
- how to test fuel pump power and ground
- Power Probe IV (a DMM may be used as a substitute)
- pocket screwdriver
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(Chapters 14, 15,16) Fuel Delivery and Fuel Pressure Testing
Related videos:
How to test fuel pressure, injector pulse and spark with basic tools - Honda:
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How to test an electric fuel pump (no fuel psi testing) - Ford:
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Fuel pump electrical circuit diagnosis (no fuel pressure testing) - GM:
{youtube}ZgNY3ZpjSsU|615|345|0{/youtube}
No Start No Fuel Pressure Troubleshooting - GM 2.2 Ecotec:
{youtube}R9PzG_FiNhY|615|345|0{/youtube}
How to test an electric fuel pump - using a test light:
{youtube}Q3ZiTsKCdO8|615|345|0{/youtube}
Low Fuel Pressure from a bad fuel pump ground (Ford Ranger):
{youtube}rQ7tvIxQSt0|615|345|0{/youtube}
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For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available as an eBook or paper book.
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