its a corsa c20let when in the calibra it had a fse power boost valve running 4.5 bar when fitted into corsa it would't start at all when placing hand leaving gaps between the fingears over the air flow metre it would start when removing hand it would cut out. We changed it to anthour 4.5 fse power boost valve the same thing happend then we left it for a while with the fingears over the air flow metre once the car reached working temperture we could remove the hand away from the air flow metre and the car would idle tidy but when we reved the car it would misfire and cut out so we direct fitted the fuel pipe to the blanking plate it would run a bit better but still had to place fingears over the airflow metre for it to start once the engine was warm you could remove hand and it would run tidy. So then i got a 3 bar regalator of a xe late type but it had different items number to the let 3 bar reg but when we tryed to turn the car over it just wouldt let any fuel through the reg or into the injection rail
any help would be greatfull
any help would be greatfull