Had the engine out of my valver recently, to fit new gearbox, new cambelt, new alternator and powersteering pump. it was running perfectly before i took it out. We put it back in on friday and test drove it. it seemed fine then allof a sudden it kept cutting out as we where driving along. the immobilser light kept coming on then goin out. so the engine was constantly cutting out every 2 mins. tried different ecu, checked timing thats fine. checked battery voltages they are ok at 13.7v. any ideas :( cheers martin