All I need to know the thread and bolt size for the csi port on the fuel rail. I need to block it off for a while till I can get and clean another cold start injector. Its stuck open and its not the switch as I just had it replaced. Yes the new switch was checked to make sure it was working. I am currently low on the cash so a new csi is too pricy but a bolt to keep the fuel from flooding my d.d. would be a big help! If this is a stupid idea don't hesitate to tell me! Sorry if this is too easy for the tech forum....:1zhelp: