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hi, did you check for injector pulse while cranking the motor over ?
ok,when you turn the key to on there should be hot to one side of the injector ,do you have a noid light to check the injector pulse ?
the other wire at the injector should pulse a ground signal when cranking the motor over .
when you are using starting fluid ,you are actually bypassing the fuel injectors through the intake
you can use a test light as well for checking ,the noid light makes it easier ,also, check all the fuses ,the reason I say this is there may be a fuse bad that you didn't know about ,,thank you ..jazzmaster ..