WHAT'S UP EVERYBODY ? HERE GOES ABOUT A MONTH AGO I NOTICE MY Z WASN'T RUNING RIGHT. IT HAS A MISS. SO I CHANGED THE AC DELCO PLUGS TO SOME BOSCH 2 PLUGS THINKING IT WOULD HELP BUT NOTHING STILL THE SAME. TODAY I CHANGED MY CAP AND ROTOR AND STILL THE SAME. WHEN I'M GOING DOWN THE ROAD I FEEL THE CAR JERKING AND A LITTLE POPING WHEN I SLOW DOWN. I'M GOING TO GET MY MODULE CHECKED TO MAKE SURE IT'S OKAY. MY IGNITION IS MSD. COULD ONE OF THE WIRES BE BAD? WHAT ABOUT AN INJECTOR? AND HOW CAN I CHECK THE INJECTORS? THANK'S FOR ANY INFO

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Make: Chevrolet
Model: Z28 Camaro Convertible
Year: 1991
Car Setup: stock
Engine Components: Comp Cam
Exhaust: DYNOMAX
Ignition: MSD
Intake: K&N
infopop.com

 

To check the injectors you will have to test them with an ohm tester.

 

MSD are notorious for going bad. They are a good aftermarket ignition, but not reliable. If you do a search on the board you'll find nearly every strange ignition problem was caused by an aftermarket ignition box when installed, especially MSD.