projekt70chevelle

iTrader: (4)

Is there any way to differ driving characteristics between a failed cap/rotor or failed optical sensor? My 95 developed a bad mid range misfire accompanied by backfiring, loss of power, a poor idle, and a leaking water pump. After I checked all connections, plugs, and wires, I went out and got all the gaskets, EWP (that I was planning on getting eventually), wiring kit, and cap/rotor kit. I will be doing the replacement this weekend, but now I am having second thoughts of it only being carbon-tracing in the cap.

I think I read somewhere that problems with the cap usually cause driveability issues, and that problems with the sensor usually cause a No-Start condition. Any input is greatly appreciated.

ss.slp.ls1

iTrader: (36)

Didn't read your post yet, but any time you go through that much effort, it's better to replace the whole unit and sleep easy then to just replace the cap and rotor. You can get a new opti for ~255 bucks from "thepartsladi" on Ebay.

transamws6_97

iTrader: (5)

if you are replacing just the cap n rotor i hope your a gamblin man

95z28camaro

iTrader: (15)

Um is there even a place that sells just the optical sensor? And yeah like said its best just to do it all together vs taking apart yours and going through the trouble.

BALLSS

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Revelation Z28

iTrader: (10)

call up mitsubishi they make them

96capricemgr

iTrader: (1)

The optical sensor is not a wear item. The cap rotor and bushing are.

BALLSS

leaking WP......that contamination in the Opti will effect the sensor.

As noted the cap, rotor AND bearing are wear items. The sensor is electrical and can fail as any "electrical" componet can by itself but more so when exposed to fluids (WP leak). Bearing will wear and cause "wobble" and is not part of a cap/rotor swap.

As suggested replacing the entire unit is advisable...especially since the original issue most likely a result of a leaking WP pissing coolant on/in Opti.

multmigs

iTrader: (2)

X3 replace the whole unit, why take that gamble for a few bucks more ur 100% I'd say do wires/plugs at the same time if they aren't newer also u said you checked them but what does that mean age wise they can look just fine.