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Old 1 Week Ago   #1
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GP TJET p0240 HELP PLEASE!!

Getting 'p0240 boost pressure sensor B circuit' fault code, cars very down on power and only making 3psi of boost. Checked all the vac lines on the boost solenoid and they all seem good and the right way round, any other ideas? Tia.Click image for larger version

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Old 1 Week Ago   #2
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Re: GP TJET p0240 HELP PLEASE!!

and is the boost solenoid itself working?
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Old 1 Week Ago   #3
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Re: GP TJET p0240 HELP PLEASE!!

Quote Originally Posted by nikrox View Post
and is the boost solenoid itself working?
How can I test it mate?
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Old 1 Week Ago   #4
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Re: GP TJET p0240 HELP PLEASE!!

Fixed it turns out its recirc valve opening at 3psi blocked it up and back up at 1bar
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Old 1 Week Ago   #5
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Re: GP TJET p0240 HELP PLEASE!!

Good news

You mean the recirc. Opening was letting the pressure out.
So a ' leak' stopping the pressure building.


How did you stop this?

Charlie
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Old 1 Week Ago   #6
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Re: GP TJET p0240 HELP PLEASE!!

Quote Originally Posted by varesecrazy View Post
Good news

You mean the recirc. Opening was letting the pressure out.
So a ' leak' stopping the pressure building.


How did you stop this?

Charlie
Read up online that the recirc can be faulty and leak air/open to early before hitting peak boost so I blocked off the recirc then took it for a test drive and was back up at 1bar of boost running perfectly fine, it's not long had a new recirc either but I'm guessing the ****ty plastic valves are only good for standard so will be updating with a forge one.
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