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Cut out problem...

MSPEC

By MSPEC,
in General Automotive Discussion

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MSPEC

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Posted

Cut out problem...

I have just bolted a HKS 2535 turbo onto my RB25DET, anyway long story short it makes 233rwkw’s on 12psi. The car was going great for about a day, now it seems to randomly cut out. When I put the boot into it the engine will cut out anywhere from 4~8k revs, generally this happens at 6000 revs. The wired thing is if I warm the car up for 20 mins and then take it for a hard run the car will rev every gear out up to 4th without a problem. Then on the second run it will cut out in every gear.

Basically the cut out stops the engine from revving and it pretty much goes dead silent. Once I release the accelerator I hear the air rush back out the air pod and the car comes back to life. If I put my foot down again it will go but usually cuts out again. I have been avoiding doing so, as it could be leaning out.

The possible fixes I have tried so far are, replace fuel filter (mine was rooted but replacing it didn’t help). I checked the fuel pump and pickup in the fuel tank but both seemed okay. All the obvious air hoses and things like that have been checked. I even bought a Z32 AFM as I read on the forums the standard R33 AFM can play up with over 230rwkw’s. However, I am yet to put this on and get a re-tune as the tuner does not believe this to be the problem. He suggested I check the fuel pump which I did tonight. Basically I am out of ideas and the AFM was my last hope. If anyone has experienced a similar problem let me know what the deal was ...

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https://www.sau.com.au/forums/topic/64591-cut-out-problem/
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