Hello every one i have an evo 8 fully built with an gt35 hta82 recently when am driving it when am going to be in boost like from second gear for example and reach the 5500 rpm or 6000 rpm my car give the feeling like it stopped or its boost cut and its not feeling that fast i change the the spark plugs and fixed the gap made a fuel test the pump is great made a data log cant find anything and a boost leak test ,,, nothing at all and its driving me crazy please guys any help ... and if i drive it like before going to be in boost the car is perfect and no one can solve the prb its driving me crazy

 

what does your afr gauge reading at the moment you feel no power?

 

Boost leak is what it sounds like to me

 

boost leak or check your tune buddy

 

its not a boost leak we made a test and yes there is no pwer at all when i reach the 5000 rpm the car feel like its missfiring and spark plugs are new and the gap to the afr is between 10.8 and 11 wich is good ... the guy in the garage told me that maybe its from the cranck shaft sensor and the cam shaft sensor i need to change them but i need to be sure first when i press pedal the car is in full power when i reach the 6000 rpm its like the car is cuttting timing or somthing

 

does the car have tephramod installed? It could be stuck in valet mode if thats the case.

 

the cAr was perfect suddenly this happened . do u think is somthing related in wiring or camshaft or cranck sensor ? cz sometimes i try to turn the car it wont response and when its cold it gives the sound of american muscles car with big camshafts ...

 

How much boost are you running?

 

sounds like you need to take it to a shop

 

no matter what boost is running if its 15 psi or 33 psi the same result and i took it to the shop we tought its boost leak we fixed it then we changed spark plugs and gap them but still the same my question is , is it possible to the cam shaft sensor .?

 

Have you checked the clutch pedal sensor? If its messed up you could be hitting the stationary rev limiter. There should be 2 of them so check them both.

 

Use correct plugs and gap them to 0.020" and then report back.

 

The problem is solved , we changed the plug that we puted on the cam shaft sensor the pins and the prb is solved thanks guys .