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Q: BAD FUEL INJECTOR? on 1998 GMC Jimmy

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Is there any way to check and see if a fuel injector is bad
(1) Answer
it is under the plastic upper intake. the only way to check the spray pattern is to remove the spider and check externally.
you can check the resistence from the connector but you need a wiring diagraphm to identify the correct wires needed for the test.

Roy