no i know that sort of cut out, my old 1 done it when i tried winding the boost up.so i went back to the amal valve. i then got another ecu (CHIPPED)and it still done the misfire im talking about. i then went back to the bleed valve and ive had it at 12 psi, no cut outs at max boost which sugests the ecu i bought IS chipped. when a limiter is faulty will it cut out at any time, at any boost?[/i]