BRZ WONT RUN UNDER 2000 RPM
 

Hey i have a supercharged brz with the rotrex supercharger by jackson racing and i seem to have a problem haha. i was cruising in a parking lot with a friend of mine and when i put down the clutch to sort of roll a bit my engine died. i assumed i just stalled it and tried turning it on again but wouldn’t start. we ended up punching it towards a parking spot and looked into it. when i tried starting it again, i kept playing with the accelerator and got it to run but will only stay on if i keep it above 2000rpm. before this happened it was running smoothly on e85 then i made a switch to regular 91 and i guess i did some hard pulls while on 91 before it died on me on the street but ran perfectly fine until i “stalled” it in the parking lot. My guess is something with the fuel system but i honestly have no idea. any input on what could possibly be wrong would be greatly appreciated:) Also it hasa DW300c fuel pump with ID1000 Fuel Injectors


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https://youtu.be/1gJ71JzpBLQ
This is the guy who had the brz before me and talks about a seized supercharger. Could that be a problem?


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Take the belt off and try and rotate the supercharger manually by hand. You should be able to rotate it by hand. Another way to check is to remove the supercharger output hose and see if its blowing air.

Is your car tuned for your fuel setup and the Rotrex?

I feel like seized Rotrex would make the belt squeal if you turned it over.

Just had a very similar issue a few days ago on my brand new FI install. Car would idle weird, hesitate, stall out completely. Tuner said I needed to do an idle relearn. Follow the link below exactly. Once I did, it has idled perfectly ever since. If not, you may have a problem with your MAF/MAP or a vacuum leak.

[ame]https://www.youtube.com/watch?v=Ud6OU13IDSQ[/ame]

Getting a CEL at all?