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The mkiv Supra Owners Club

Strange boost problems


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hi all, something must be a miss here, with the B/C OFF the car will peak at around 1.35-1.4bar but then when i put my foot down again it will only peak at maybe 1.1bar! Then when i put the B/C on channel 1 it will only boost to 1.25bar! Now i didnt think that a boost controller can lower boost!? I thought it only raised it.

Also on the same day the afr's at 1.25bar were at 11.5 then 5 mins later they were 10.1 at 1.25bar.

Surely this isnt right as the car doesnt feel very strong pulling at all.

Any help would be great.

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