When servicing fuel injectors not with a test bench then it is very important to check the Ohms resistance using a Multimeter.
There can be a number of things causing an fuel injector or set of injectors not to function correctly. An incorrect Ohms resistance can be one of these causes.
The Ohms resistance is what makes a fuel injector flow the rate of fuel it flows. So if the resistance is different in 1 fuel injector to the other injectors in that set, then this injector will put out more or less fuel than the other fuel injectors causing a misfire or cylinder to flood or engine to run rich or lean.
When you have your fuel injectors professionally serviced this is checked by the flow test at the very end. However if you cannot afford to get your fuel injectors professionally serviced then this is the next best way to test them.
You need to just make sure all injectors have around the same Ohms reading as there is no where you can really check what they should read only against each other. If 1 or more injectors is different to the rest then that injector is worn out and will need to be replaced. Wear & tear is the cause of a change in Ohms reading.
If you get a reading of zero Ohms then that injector is 100% faulty as it will have a break in the internal windings.
If you find you require a Professionally serviced set of the fuel injectors or a service kit to service your fuel injectors please drop us an email info@partsden.com
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