backfiring, no power HELP
today start up my car & it was backfiring alot, i found a big exhaust leak by the resonator. i'm getting spark on to all cylenders but there's no difference to the engine when i pull the wire off cyl #1. it runs almost normal but stuters and struggles over 3 grand. i think that the injector may be shot. i've heard you can use an ohm meter to test it but i have no clue what it should read. any help?
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