mean94lt1

iTrader: (34)

just wondering if anyone has had any problems with their msd opti?...i have a ignition problem and i believe it is the opti..i bought it used...as soon as there is a load on the motor above 2000 rpm it misses like crazy...and at an idle when you first start it it pops through the exhaust

94nitrousedLT1

I had a problem with my first one. I got it replaced and had no problems after that. Most of the problems with the MSD opti are that the rotor comes loose. You should check that first.

mean94lt1

iTrader: (34)

i would think that if the rotor came loose it would miss all the time and it doesnt at an idle

fordeater

iTrader: (5)

did you install it correctly, is car throwing any codes??

Revelation Z28

iTrader: (10)

maybe carbon tracking?

porksoda

iTrader: (39)

I have read about others having problems with them but most were due to improper installation. Mine has worked perfect since I installed it, and I open it up everyday that I drive!

mean94lt1

iTrader: (34)

honestly there is really no wrong way to install the motor was on tdc #1 and i put the pin in its hole anything over 2000 rpm it misses like crazy im going to try a delco in it to see if it fixes it

Green3spd

iTrader: (7)

PLEASE check the obvious FIRST! I installed a motor once and it started misfiring under a load. I replaced the opti also.

I had two plug wires swapped the whole time!

Might I add, the opti DID quit on me 10 mins. later driving down the road
(guessing the two being swapped messed it up)

355z28

iTrader: (8)

ive had mine for ahwile and no issues.

B4CZR2

No problems with mine, bought mine as a complete unit new, never opened it up to make sure the rotor wasn't loose so hopefully it will continue to keep working perfectly.

porksoda

iTrader: (39)

When I say improper installation I mean they assembled the opti wrong. The MSD opti has been known for the o-ring between the cap and housing to come loose and cause the rotor to rub. This is why they started putting out the square o-ring so it wouldn't roll off its lip.

mean94lt1

iTrader: (34)

ic what your saying i had the cap off of it and couldt see anything wrong and called msd and the tech line sucks im not sure its the opti now i have a feeling its the lifters