Hi all need some help my 2002 civic limps at 55-60 .The codes are 238-map sensor high (replaced map sensor) 1236-boost pressure control negative 1237_boost pressure control positive .some help would be spot on .The turbo vanes are free and easy .thought it may be evrv solinoid.Thanks in advanced

 

So you have a turbo, correct?

How much PSI is it at?

 

yes a 17cdti no boost clock on it

 

Well how much PSI you are running is kind of important. The stock MAP sensor can only read up to like 11 PSI.

 

its just a standard factory setup bog standard my sons is a 2door same model runs at 10-14 psi .I dont know enough to check mine cheers

 

My turbo'd 2002 civic is doing the exact same thing right now. i'm only running 8 PSI. I have no check engine lights though. But at higher speeds and higer RPMS my car limps and pulls power. If you figure out what the problem is, please please let me know.

 

are you running on a tuned ecu or a stock ecu???

 

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bog standard factory,have changed map sensor,cleaned vnt,accuator moves freely,vacuume hoses seem sound,its a common prob could it be evrv solinoid or clogged up egr .Anyone who can solve this id like to hear from you cheers

 

so your car isn't tuned?