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Billman’s P1457 DIY

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Old 08-16-2012, 02:10 AM
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I'm PISSED.. As driving to work my CEL lite up.. Here at work and I have two codes.. P1457 and P1457 PD.. What gives!!
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Old 08-16-2012, 07:55 AM
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Originally Posted by TurbanRacer
I'm PISSED.. As driving to work my CEL lite up.. Here at work and I have two codes.. P1457 and P1457 PD.. What gives!!
Start at page one of this thread. The fix/diagnostics bill recommends is the proper procedure for this repair.
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Old 08-16-2012, 08:57 AM
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Easiest way to check would be to monitor fuel pressure and remove the gas cap. That would reveal a vacuum lock.
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Old 08-16-2012, 10:32 AM
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Yeah I'm trying to get the adapter to test at the pulsation damper, per helms. Requires a special tool.
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Old 10-19-2012, 03:36 AM
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thxs bill, this fixed my cel sry so late LOL
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Old 10-19-2012, 05:07 AM
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If either or both of those valves are bad does it do any harm?

Is there any negative effect to running with this code on?
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Old 10-19-2012, 07:02 AM
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Yes, any other code that needs to set you will never know. Plus you are pissing away fuel (in vapor form)

I highly recommend fixing it.
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Old 10-19-2012, 07:35 AM
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Originally Posted by SgtB
Easiest way to check would be to monitor fuel pressure and remove the gas cap. That would reveal a vacuum lock.
you say its easy monitor the fuel pressure from removing the gas cap? how do i check ? how do i confirm the issue neither being the gas cap or valve set.
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Old 10-19-2012, 07:55 AM
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Mr. T is having a strange problem. A fuel gauge a the pulsation damper is the method.

For the problem Billman is addressing, follow his steps if you're getting a CEL.
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Old 10-19-2012, 08:02 AM
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haha i thought page 2 was page 1.. ok so its not the gas cap. lols
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