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P0301 continuous led to piston melt after a rebuild :-(

Old Jan 22, 2016 | 01:33 PM
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Leightonm1969
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Default P0301 continuous led to piston melt after a rebuild :-(

Hi, hoping to get to the bottom of the problem.
Piston melted :-( 8000 miles after a rebuild?

I'm having it Rebuilt again but must stop the piston melting problem.
Misfire at boost 3500rpm.
P0301

Plugs new
Coils swopped around
Extra earth's to engine
Fuel filter
I had lean fault with tesco momentus
Then used V power until the present tank of fuel standard shell petrol which is still in the car.
New MAF sensor Pierburg manufacturer
Would a denso work better?
I thought it was when i bought it. The car did run more smoothly after fitting the new MAF Sensor.

Wits end can't have this rebuild melt on me as well
2001 bugeye wrx
Standard completely not even an exhaust.
Pleeeeeeeeeeeeease of you can help

👍👍👍👍👍👍🚗💨💨💨
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Old Jan 22, 2016 | 05:24 PM
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Was it cylinder 1 that went too( closest to drivers headlight?) as that is what the code relates too, could be numerous things but worth getting the injectors checked or flow tested as could be a fueling issue
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Old Jan 22, 2016 | 07:11 PM
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If didn't reset the codes
Cylinder 3, then 2 then 4
Couple of weeks this would happen

Would add to the history of codes :-(
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Old Jan 22, 2016 | 07:52 PM
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rolling road after the rebuild to check AFR`s . .
on strip down was there any sign of burnt valves/seat damage?
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Old Jan 23, 2016 | 08:12 AM
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Default Cheers thank you!

Ok I'll ring and ask about the valves.

Best rolling Rd near swansea???
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Old Jan 25, 2016 | 09:08 PM
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scm crosshands.
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