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Old 06-04-2009, 10:49 AM   #191
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did you do some fuel upgrades though, that the ecu cannot compensate for?
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Old 06-04-2009, 11:47 AM   #192
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the focus uses PWM to control its fuel injectors. you said you're on a base tune from McNews? perhaps you should call them... make sure you're using the injectors they set up the tune for.
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Old 06-04-2009, 12:53 PM   #193
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Compression is 30psi! I don't know how I did it, but the crank must of somehow gotten 180* out of phase. All the pictures I'm looking through show cylinders 1 and 4 at TDC though, and the cams appear to be in the correct position.

If I did somehow manage to get the crank 180 degrees off, I fear I have bent valves.
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Old 06-04-2009, 02:21 PM   #194
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ohhh nooooooooooo....aughhhhhhhhhhh
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Old 06-04-2009, 02:39 PM   #195
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an even 30 psi on all cylinders? wow... not good.

did you use the OEM Ford SVT headgasket (not some silly thick one)?

You could try a few drops of oil to see if that bumps your compression up to normal.

Also, double-check your valve lash - Are you sure you got all of them right? If your lash is too tight (or zero), then you won't get good compression.

I'm not sure if it should start with only 30psi... anyone else seen theirs that low?
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Old 06-04-2009, 04:27 PM   #196
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just some random thoughts, Matt sent me in here and I thought I'd throw in my somewhat experienced 2 cents...

30psi is probably due to fuel washing down the cylinder walls.

if you are on the stock tune using bigger injectors, that is your problem.

The Focus does not have a fuel pressure regulator. There is the pulse damper and also the delta pressure sensor. The pressure sensor uses the vac line to tell the difference (delta) between the rail side and manifold side of the injectors. Then the ECU uses this to tell the fuel pump how much pressure to put in the rail to achieve 40psi across the injectors.

make sure your crank position sensor is plugged in.

have you checked spark yet?

i have some more random thoughts but answer those first and we'll go from there.
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Old 06-04-2009, 06:05 PM   #197
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Where do I put the drops of oil?
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Old 06-04-2009, 07:05 PM   #198
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in the cylinder you're testing, right before you test it (via spark plug hole)

Someone correct me if I'm wrong, but no more than a teaspoon or so should do it.

The oil should fix the problem if its a ring issue (from gas on them, or because they are shit, or whatever)
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Old 06-04-2009, 07:06 PM   #199
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Spark plug holes.

With as much gas as you've put in there you're going to need a full teaspoon or two.
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Old 06-04-2009, 09:30 PM   #200
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ugh, how is this coming along?
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