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1993 Z28 opti-spark removal/replacement

1K views 7 replies 4 participants last post by  BigBowtie85 
#1 ·
My car has just over ninety thousand original miles I'm the second owner the previous owner did general maintenance and tune up ever since I got the car got it had a bogging sensation and everything I've read leads me to believe my optispark ignition is failing is this something I should tackle on my own I know my way around most things just wondering if there's anything I need to know or short cut anybody has thanks for any help

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#4 ·
I would agree with changing the water pump when doing it, and I would also agree with sticking to the AC Delco for the opti spark. I use the MSD for the coil, but not for the opti. I know lots of people have good luck with the MSD, but I have seen them bad out of the box too. I don't see nearly as many issues with the Ac Delco.
 
#7 ·
Failing fuel pump or a clogged fuel filter will cause bogging also.
I'd try changing the fuel filter if it were me.
 
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