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Old Sep 1, 2019 | 05:50 PM
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Cleaning out the garage today. This is 286K miles worth of '94 Opti Sparks.

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Old Sep 1, 2019 | 08:21 PM
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Thats a lot of optis. Using the same type each time?
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Old Sep 1, 2019 | 08:43 PM
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Time for the LTCC swap
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Old Sep 1, 2019 | 08:45 PM
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Originally Posted by Raidmagic
Time for the LTCC swap
One of those lasted about 30K after I installed the LTCC.
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Old Sep 1, 2019 | 08:48 PM
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Originally Posted by FAUEE
Thats a lot of optis. Using the same type each time?
Mostly Cardone. They last anywhere from about 5K to 50K, as I recall. It's a crap shoot.

286K is a lot of miles, too
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Old Sep 1, 2019 | 08:49 PM
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Any of those still have a Mitsubishi optical module in them? If so, they're probably worth salvaging.

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Old Sep 2, 2019 | 09:35 AM
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Originally Posted by oilyfishhead
One of those lasted about 30K after I installed the LTCC.
Really? Once you do the swap they just become a crank sensor, right? What failed?
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Old Sep 2, 2019 | 10:05 AM
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Originally Posted by oilyfishhead
Mostly Cardone. They last anywhere from about 5K to 50K, as I recall. It's a crap shoot.

286K is a lot of miles, too
I'm curious, because my 92 has an invented (supposedly much worse) opti and made it 130k on its own opti, I replaced that as PM and due to incorrectly diagnosing what truly was a Vats issue. You're a bit over double my mileage and have used WAY more of them than I have.
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Old Sep 2, 2019 | 10:50 AM
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As I recall, the original Opti made it to about 125K before the before the bearing went. The rest are all aftermarket.
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Old Sep 2, 2019 | 10:54 AM
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Originally Posted by Raidmagic
Really? Once you do the swap they just become a crank sensor, right? What failed?
I'm not sure what failed. It just started the classic intermittent engine stalling problem. I changed the Opti and the problem went away.
I'm not sure how many miles are on the latest Opti. I don't drive the C4 much anymore since I bought the C5.
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Old Sep 2, 2019 | 08:42 PM
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Originally Posted by Raidmagic
Really? Once you do the swap they just become a crank sensor, right? What failed?
Cam sensor, actually, but same general idea. After the LTCC conversion, a failure would likely be either the optical sensor or the shaft bearing. It's no longer a distributor after the LTCC is installed, so it won't need a rotor. There'll be no high voltage to distribute.

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