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Old 08 Jan 2006, 08:07 am
KWW
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Default Timing way off - replacement engine in '93 Accord

Put in a replacement engine in a car. When I went to adjust the timing, the
15 degree BTDC mark was way up so that I had to look up in the timing hole
to see it (could not look straight in and see it). I estimated roughly that
it was another 15 to 20 degrees out. The check engine light is ON. The
engine ran very smoothly.

After my daughter's '93 Accord's engine "died" I came across a
well-recommended place with low-mileage replacement engines (from Japan) and
got a good deal on a very clean 2.0 litre engine.
Replaced all seals, used old intake and exhaust manifold, and old wiring
harness.
Used the old distributor and coil due to external vs internal coil and
associated wiring differences.
Kept the new motor's sensors (that were in the block) but the fuel-injection
and stuff from the old engine came along with the intake manifold.

Verified that "T" on the flywheel (backplate) corresponded to highest point
on #1 cylinder.
Triple checked timing marks for timing belt (3rd time after running it for a
little).
Absolutely certain that the distributor is correctly set in the motor.

Per the Hayes manual I did put a jumper in the blue connector in the
passenger compartment to perform the timing check.

That is when I took off the valve cover and top timing belt cover and used a
straight-edge to triple-check that the timing belt was not off by a tooth.
It was dead on with the top of the head.

A Honda technician suggested that either my timing light is off, or the
car's computer may be trying to compensate for something, causing the timing
to be way advanced. He mentioned something about another jumper under the
hood, but the manual only mentioned the one inside the car. The guy further
suggested trying to drive it and see if it revs up well, does not bog down,
runs without pinging, etc. If it does, he thought it should be fine.

Has anyone run across this before? Is there any way to "reset" the computer
if that is the problem? Might there be a bad sensor involved?

Trying to keep 5 cars running and this one is taking an inordinate amount of
time.

TIA,
--
KWW


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