azZdriver Posted July 3, 2011 Share Posted July 3, 2011 (edited) I think my injectors may be bad. I removed a couple and read the resistance at 0 ohms. Does this mean they are bad? Edited July 3, 2011 by azZdriver Quote Link to comment Share on other sites More sharing options...
rsicard Posted July 3, 2011 Share Posted July 3, 2011 Because th injector reads 0 ohms does not necessarily mean that it is defective. Just says that the ohmmeter may be of low quality. A crude check of the injector would be to apply fuel under pressure at 45 psi and apply 12 volts to the terminals of the injector. This would represent 100% duty cycle, a crude way to test the injector. To properly check injectors requires a fixture with large lab test tubes to capture the fuel emitted by the injector(s) by timing and measuring by applying a measured +12 volts pulse train. Timing and measuring for a given pulse width applied. Quote Link to comment Share on other sites More sharing options...
azZdriver Posted July 3, 2011 Author Share Posted July 3, 2011 Thanks. I'll have them tested some where. You know of a good place in Az to have them checked? Quote Link to comment Share on other sites More sharing options...
rsicard Posted July 3, 2011 Share Posted July 3, 2011 Search around on the Internet for places in Phoenix. They need to have a fixture for testing same. Likely it will cost the majority of the cost of new ones to have the old ones tested. There is a good injector sales shop on both the west and east coast. Again, do some searching on the Internet. West Coast is 5 "O" something. Reasonable costs for new injectors. Quote Link to comment Share on other sites More sharing options...
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