Date: Sun, 29 Jun 2003 13:40:29 GMT From: Paul Halliday <pjghnopsamyonder.co.uk> Subject: Re: Fuel Over-Pressure Switch Questions
in article bdmbpu$uhoj7$1nopsam52899.news.dfncis.de, Grunff at grunffnopsam.com wrote on 29/06/2003 10:31: > Paul Halliday wrote: <snip>APC pressure transducer location and operation. PH mistook this for the fuel over-pressure switch and had some high boost fun :)</snip> >> A ha! Surely this is the fuel over-pressure switch. Hence, the vac for this >> device was not interrupted by my fiddling the other day and would still cut >> the car's fuel at 0.95 Bar. Again, am I on the right lines? I can't find any >> reference to this in the Haynes, so I'll have to take advice on this one. > > Found it - I had to look in the Bentley - Apparently it was > fitted to 16vTs between 1985 and 1988. My 1986 doesn't have one. > > Figure out if it's normally open or normally closed (measure the > resistance across the connected terminals, having first > disconnected them). If it's normally open, then just disconnect > the terminals, secure them with a cable tie, and forget about > them. If it's normally closed, then disconnect them and connect > the two terminals together securely. > > As for it's vac connection, just plug it off. Thanks for that Grunff. I presume I am talking about the same thing? Its purpose is to shut the fuel off at a certain pressure. It should only operate when something is very wrong with the APC, like it is not holding back boost at high pressures. In my case, I bypassed the APC pressure transducer, so it did get the high boost and the fuel shut off kicked in exactly right. Good stuff. I'm much more clear about what's going on down there. Paul
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