Ok so today I'm doing a little diagnostic work on my 88 IROC-Z28 and I pulled the connectors on all of them and 4-5 have little to no effect of the engine 3-4 definitely have an effect on the running of the engine. What should my ohm's be on these injectors?. I only ohm'd the bad ones they read 14.9-15.1. Is this reading the impedance?. I also checked for voltage and got like 219-224 for a reading VDC. Could this be right?. I was just checking to see if they where getting anything.