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  • Cryptic Clothing Company
  • Donating Members
  • Member For: 16y 10m 8d
  • Gender: Male
  • Location: Brisvages, Capalaba

I gave my car a bit of a boot before and as it rose to around 4500-5000 rpm MIL light popped on. so I pulled over and plugged in my flash tuner and spat out the error code:

P0238 TRB BOOST

SA CIR HI IN

car runs ok. but as it comes onto boost is a bit less of a punch then normaly does. still goes hard but far less then wat it normaly does. I tried to ring my tuner, but they have shut at 5.00. so if someone cud tell me what this is and how to fix the problm. cheers

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https://www.fordxr6turbo.com/forum/topic/58271-can-someone-tell-me/
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  • Cryptic Clothing Company
  • Donating Members
  • Member For: 16y 10m 8d
  • Gender: Male
  • Location: Brisvages, Capalaba

ok code means:

P0238 Turbocharger Boost Sensor A Circuit High,

now what is that and how do I fix it?

  • Cryptic Clothing Company
  • Donating Members
  • Member For: 16y 10m 8d
  • Gender: Male
  • Location: Brisvages, Capalaba

iv been doing some more online csi work and have found out that this means the the turbo is generating too much boost and is tripping out the engine management, or could be a faulty sensor.. what sensor does this use? could it be sumthing with the boost solarnoid?

  • Cryptic Clothing Company
  • Donating Members
  • Member For: 16y 10m 8d
  • Gender: Male
  • Location: Brisvages, Capalaba

yeh I tried to call the tuner, but they were closed when I did and its a long weekend. so I thought maybe someone on here had the same issue and I could maybe fix it myself. if it was a faulty sensor or sumthing

  • iTs alL DaRDy........
  • Donating Members
  • Member For: 17y 8m 13d
  • Gender: Male
  • Location: Adelaide

faulty boost sensor in the ubp is the most likely cause. overboose wont cause circuiit failure code u would get hi boost code.

replace the sensor, clear code and try again :)

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