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The mkiv Supra Owners Club

Fuel line, filter to dampener


fastcar
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  • 1 month later...
Also interested in your issue

 

Was having a fuelling issue and misfire on wide open throttle under second turbo! Looks like it may have been an exhaust system issue not being restrictive enough! I'm running 3" double decats to a 4" exhaust and 2.5" restrictor ring, think it was to much for the hybrids, stock fuel system and ECU to cope with! Put the second cat and stock exhaust back on for MOT and seems to have stopped doing it as capping boost down to 1.1bar, either that or low boost is just masking the problem. Will put the other system back on with a 2" restrictor and see how that goes

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I`d say you`ve answered your question buddy.just hope theres no damage to the engine.

 

Hopping that to mate! Ran fine for 1500 miles but I didn't really give it much stick. The night it started happening I was on it and shot a flame out the back big enough to light the road up behind me like a flood light. Gave it some stick last night with the stock exhaust on and seemed to running sweet. Will do a compression test aswell, should give me some kind of indication of the health of the engine!

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