Is Your Optispark Failing ?

[mdstud]

I don't know about the p/n however I would recommend going with a completely new unit and replacing the entire thing.

[4thgenZ]

Ok, so I'm thinking my distributor may be done again. Will the distributor cause the car to skip and shake? The water pump I put on last summer (I did the distributor at the same time) starter leaking out the weep hole (lifetime warranty on the pump was nice). Now the car skips. I'm doing the wires just to be sure before I go and change the distributor. But I just dropped most of my money on tuition for this semester and I saw you guys talking about rebuild kits for the distributors. I'm short on money so I'm willing to rebuild the distributor if I have to, but I don't know where to find the rebuild kits. The car is a 94. Can anybody tell me where to get one if I need it?

[Adam365]

My 95 z28 dies while i'm driving sometimes and won't start right away but after i let it sit for a bit it will. Does that mean my opti is going? Or is this something totally different?

[1987turbo]

sorry guys im new here but im about to buy a 1994 z28.. he said it hesitates when not giving it much gas but when u put it to the floor it goes like nothing is wrong. any ideas any help thanks

[blackhowling]

ok i have a 94 caprice with the 4.3L L99 engine with the optispark system trying to find out whats wrong my car starts to heat up the will kill and will not start back up tell the next day i think its kinda weird since i try a couple hours later and it wont start...ive replace the back to the distributor befor cause the optical sensor went out an have replace the coil and the control module can someone help me

[gchaux]

Now thats funny.i dont care who are thats just funny

[mychevyisntheavy]

Originally Posted by MoffZ28

Is Your Opti-Spark Failing?

LT1 owners have dealt with the Opti-Spark distributor for 11 years now, but there is still much confusion regarding the causes and symptoms of a failing unit. Tapping into the PCM with a scan tool is a good way to start, but sometimes no codes will be set. Before diving into the Opti-Spark, be sure to verify that your grounds are good and the coil and wires are not the source of the problem, as they are much easier to change.

Symptoms:

* Car suddenly dies and won't restart
* Starts but immediately dies
* Extended cranking to start
* Rough idle
* Sputtering
* Backfiring
* Trouble reaching higher rpm
* Black smoke from exhaust
* Poor performance with car warmed up
* Weak plug wire spark
* Codes 16, 36, and 42 may be set

your info is very helpful. but when i redid my motor i didnt know anything about the opti. i just bought one from summit (cap & rotor) put them together. so far. knock on some wood. i havent had problem with it. i`ve got about 4-5000 miles on it.

[Blown1993Z28]

I found a good kit to replace they quirkey opti. Check it out;
Lingenfelter Performance Engineering: Bailey LTCC Coil Conversion Module - LT1 to LS1 Ignition Controller