possible bad opti?
Thread Starter
Instructor
Joined: Feb 2009
Posts: 214
Likes: 0
From: Las Cruces New Mexico
possible bad opti?
i changed the cap and rotor on my 93 with an MSD unit. it has always since i bought it had a slight mis, so i thought i would do a tune-up. cap, rotor, wires and plugs. it still ahs the mis and it seems # 6 and 8 are not firing like they should. i replaced the injectors in those 2 cyl. nothing changed. im getting spark, checked the compression, its fine. all thats left is the dang dist. anybody know if this sounds like the opti spark? what inside goes bad?
Burning Brakes
Joined: Feb 2009
Posts: 785
Likes: 3
From: Richmond Virginia
Is the slight miss there just at idle or all the time/ have you checked compression on 6 & 8 ? Also did you check all the injectors w/ohm meter. The injectors on yours are pulsed/fired 4 at a time so that one being out of range can affect the other 3 in the circuit.
Melting Slicks
Joined: Jul 2004
Posts: 2,695
Likes: 0
From: Chicago Illinois
My bad, I reread your OP and from a guess agree with you it could be the opti seeing it happend befor and after you did your tune up. Try to get a vented opti for the next one like I did on my 93. 25000 miles later still no misses.
Thread Starter
Instructor
Joined: Feb 2009
Posts: 214
Likes: 0
From: Las Cruces New Mexico
well i put the old injectors in andlow and behold it runs fine. crazy! i guess it healed its self, maybe christine is back as a vette now?
thanks to those who added their input
thanks to those who added their input
Le Mans Master
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
Safety Car
Joined: Jul 2001
Posts: 4,871
Likes: 15
From: Detroit's West Side MI
Happens all the time.
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