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The mkiv Supra Owners Club

Supra 2jz power cut NEED GURU HELP


em-power

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Hi guys...i bought that supra and since i bought it this car have 2 problems:

 

1) if i go full boost , full accelartion the car start to cut power

Here a video :

 

If i drive normally and i push 70% accelerator pedal, the car run perfect untill the rev limiter!

But if i push hard 100% full accelleration, than i have this power cut!

 

2) many times but not always...when i arrive to a corner or a stop, and im in Neutral gear, the engine switch off

Not always but often.

 

 

Car is 2jz twinturbo manual

Boost 0,9

Only 1 catalyst (the small one before turbos)

Catback blitz

Decat (long one)

 

 

I already changed:

ICV valve, with new one.

Spark plugs and all the old clips on the coils.

 

The car dont have any FCD... But who sold the car to me said that i dont need FCD if i have 1 catalyst

And boost its 0,9bar (i dont know if is correct do not have fcd??)

 

What can i check??

Any suggestion??

 

Thank you very much

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