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post #1 of 3 (permalink) Old 02-06-03, 03:47 PM Thread Starter
96 EF Futura
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Join Date: Aug 2002
Location: Now Residing in Brisbane
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timing troubles

ok when I put my EA in self test mode to set the timing I get a slightly erratic reading ocassionally. I will set it to 10 degrees BTDC, if I hold the trigger of the timing light on, the mark will be perfect, but then it will jump about 5-6 degrees either side of the mark ( advance/retard ) then go back to where it is supposed to be, then will eventually jump again. I am thinking it could be the ECU or distributor, or even a slight misfire but wanted to know what you guys thought...The ECU and Distributor will be changed when I do my MPFI conversion, but in case it could be something else I would like to rectify the problem.
Thanks in advance

Lets go find that Hotdog tree I planted

Lowered EF Futura
Black Steelies ( too cheap to buy proper mags )
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post #2 of 3 (permalink) Old 02-07-03, 12:28 AM
Australian BA XR6 Falcon
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Location: Perth WA
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Could be just a dodgy plug lead, dodgy dizzy cap. If it doesn't effect driving, I wouldn't worry about it to much if your swapping to MPEFI.

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post #3 of 3 (permalink) Old 02-07-03, 03:49 AM
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Pcm will hold 10deg. for only 2 min's.
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