D1andonlyantman Posted March 17, 2018 Share Posted March 17, 2018 Hi everyone. Picked up the new supra today. Took another test drive around town, pulls fine, second turbo kicks in nicely as it should. All good. Pay the man and start the journey home... All fine.... Get on the motorway, foot down, Jesus Christ that a big misfire once the 2nd turbo kicks in in the high gears..... remember reading about a fuel cut defender being needed for bpu, and it feels a lot like when my evo was getting fuel cut. Pretty sure that's where we are. I was going to get it a health check anyway but now I'll get them to sort this too. I live in between Stevenage and Cambridge in Herts, anywhere around here know their stuff? I spoke to the bloke who seemed none the wiser. I asked of he'd had a good thrash in it rather than just around town, which he said he hasn't. But that's neither here nor there. It is what it Is, we need solutions not problems. Cheers Quote Link to comment Share on other sites More sharing options...
Ric Posted March 17, 2018 Share Posted March 17, 2018 fuel cut isn't really a misfire. It's a complete lack of engine power, almost like putting the brakes on. Chris wilson is selling some decent calibrated fuel cut defenders. Quote Link to comment Share on other sites More sharing options...
JasonR24 Posted March 17, 2018 Share Posted March 17, 2018 Misfires are distinctive and so is hitting fuel cut. Hitting fuel cut is like having all your power stopped instantly. Like hitting a speed limiter Quote Link to comment Share on other sites More sharing options...
Dnk Posted March 17, 2018 Share Posted March 17, 2018 If its at bpu but no fcd then it'll be fuel cut Quote Link to comment Share on other sites More sharing options...
D1andonlyantman Posted March 17, 2018 Author Share Posted March 17, 2018 Yeah, it was fuel cut. I thought it might have had clutch slip too, but watched the Speedo and the revs were just going up and down roughly 500rpm, but it would barely go past 4k. In lower gears around town it was flying when he put his foot down. If i only went half throttle I could build speed fine which further points towards fuel cut. It's only at WOT it won't play ball. Plus the oem gauge was right off the top, as I guess it's calibrated to .8 bar or whatever Quote Link to comment Share on other sites More sharing options...
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