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The mkiv Supra Owners Club

Running lean on 1st turbo


BABZ988

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hi all,

As the title say, i have an issue with my car , TT 6sp BPU,

 

at idle or mid throttle, all is fine but saying that i drive at 2000rpm, if i floor it i see my AFR rising too 15' or 16' as long as i'm on the 1st turbo and then when the 2nd come on line at nearly 4000rpm it quickly come back to hight 11'.

i might be looking on the VSV FPR side

 

have done lot of research but nothing interresting...

 

thanks

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