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Octane adjust pin in use?

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Old 09-21-2004, 01:59 AM   #1
Sacramento CA
92 XLT & 91 3000GT VR-4
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orange Octane adjust pin in use?

I had this code pulled from my 1992 explorer and the used car tech at the infiniti dealer i worked at didnt know what it ment. any ideas?

1992 Ford Explorer XLT 4x4
Factory Tow Package with Trany cooler, oil cooler and 3.73 LSD rear end
All stock with 190,000 on the clock and still running strong

1991 3000GT VR-4
335HP DOHC 3.0L Twin Turbo V-6
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Old 09-21-2004, 11:50 AM   #2
Spanish Fork, UT
92 XLT and '87 Bronco II
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Your code list is incorrect on this one, I think. KOEO 341 is normally supposed to indicate that octane adjust pin circuit is open. Properly diagnosed, you would go through the octane adjust circuit (get wiring diagram) until you find the break.
That said, I suspect that the engine was pinging (a common complaint on these engines) and someone removed the octane adjust shorting bar (removed, engine timing is retarded a little bit) to try to fix it. There are better fixes for engine ping if this is the case. It's been discussed many times; see what you can find using the search function.

Mr. Shorty
92 XLT 4x4
87 Bronco II XLT 4x4
'98 Chev K1500 Suburban SLT 4x4
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