thanks very much i really appreciate your help.if i could post you my ecu i can put a chueqe payable to you or paypal it you for the return postage i will see you ok for this. best phone or text me 07816979215 for your address thanks ray. ive read lots of your posts. i dont have any gear to test injectors other than swop them around. i listened to it through a stethoscope and compared to the other three it sounds different thanks ray