P0303 2011 GT after clutch replacement - Mustang Evolution

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Old 03-13-2012, 12:06 PM   #1
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P0303 2011 GT after clutch replacement

Ford just replaced my clutch / flywheel due to manufacturing defect that led to impossible shifting. I have a Boss 302 intake manifold and a CAI installed as well as a 91 octane Bama tune. When I got the car back it started misfiring and throwing p0303 around 5k RPM. I made sure the tune was still in tact by re flashing, but still have the problem. The car has 22k miles on it and has had the intake and CAI for about 15k. It's never been a problem until now. Not sure what needs to be disassembled to replace the clutch / flywheel - is it possible something could have gone wrong during that process that could lead to the issues I'm experiencing?
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Old 03-13-2012, 12:30 PM   #2
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There's something that has to be re timed. The ecu detects misfires with the flywheel and ford is notorious for missing this step. It's been discussed a few times before but im not sure if it was on this forum or not. A google search should turn it up.
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Old 03-13-2012, 04:11 PM   #3
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The cam sensor needs to be reset. It goes off the flywheel.
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Old 03-13-2012, 04:58 PM   #4
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It might be a crank sensor on the flywheel but I don't think it would be a cam sensor
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Old 03-13-2012, 06:24 PM   #5
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Re: P0303 2011 GT after clutch replacement

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It might be a crank sensor on the flywheel but I don't think it would be a cam sensor
Thanks that is right. I was at shop installing my stall didn't realize I put cam..It is crank sensor.

Any way ford says any time you do a clutch/stall/balancer you should do a relearn for it. There is a TSB about it I need to find. You need a Ford Procal to do it or take to dealer.
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Old 03-14-2012, 05:04 AM   #6
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Re: P0303 2011 GT after clutch replacement

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Thanks that is right. I was at shop installing my stall didn't realize I put cam..It is crank sensor.

Any way ford says any time you do a clutch/stall/balancer you should do a relearn for it. There is a TSB about it I need to find. You need a Ford Procal to do it or take to dealer.
I think you guys are correct about the crank sensor.......Hold dealer to the issue.they should know but you need to drop the hint as to what it is.Where are you located?
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Old 03-14-2012, 04:05 PM   #7
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Re: P0303 2011 GT after clutch replacement

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I think you guys are correct about the crank sensor.......Hold dealer to the issue.they should know but you need to drop the hint as to what it is.Where are you located?
I mentioned the TSB to them and they said they are sure they already did the reprogramming. Either way, when I get home from vacation on Monday I'll head up thereandhave the do it again. I'm in North Hollywood, CA.
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Old 03-19-2012, 01:00 PM   #8
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So I just left the dealership. They said they re programmed the crank sensor, but needed to re-flash the ECU, overwriting the custom tune I had installed. I used my SCT to install the custom tune and was feeling good. On my drive to work I got a flashing CEL and a loss of power that was similar to what was happening when I got the P0303. This happened several times during the drive, but the CEL would only flash, never stay on. Does the custom SCT tune overwrite the crank sensor programming, or does it seem like they didn't perform the sensor programming correctly?
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Old 03-19-2012, 04:33 PM   #9
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Quote:
Originally Posted by ryanast
So I just left the dealership. They said they re programmed the crank sensor, but needed to re-flash the ECU, overwriting the custom tune I had installed. I used my SCT to install the custom tune and was feeling good. On my drive to work I got a flashing CEL and a loss of power that was similar to what was happening when I got the P0303. This happened several times during the drive, but the CEL would only flash, never stay on. Does the custom SCT tune overwrite the crank sensor programming, or does it seem like they didn't perform the sensor programming correctly?
Did you check to see if code would pull up? The dealer can see what code was stored even if you can't. This kept happening to me. They ended up replacing my computer.
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Old 03-19-2012, 05:15 PM   #10
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The SCT is not reading any codes. The CEL flashes but will not stay on. I have tried checking for codes while the CEL is flashing, but nothing is caught.

Do you have a custom tune? I imagine the SCT would need to be re-flashed if it is connecting to a new ECU.
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Old 03-19-2012, 05:39 PM   #11
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Quote:
Originally Posted by ryanast
The SCT is not reading any codes. The CEL flashes but will not stay on. I have tried checking for codes while the CEL is flashing, but nothing is caught.

Do you have a custom tune? I imagine the SCT would need to be re-flashed if it is connecting to a new ECU.
No if they replace computer they will flash it to your car. It would be married tin your VIN with same computer code.
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