Paddy78 Posted July 11, 2013 Share Posted July 11, 2013 Thanks to Chris/Keyser, who diagnosed my tapping engine at the Wales meet, I need to replace the rear (behind the plenum) fuel pressure regulator. Are there any guides on how to do this or can someone give me some simple instructions. Is this even something I should be attempting since fuel will be escaping at some stage? Quote Link to comment Share on other sites More sharing options...
evilscorp Posted July 11, 2013 Share Posted July 11, 2013 Just cut a 500ml bottle in half and use that to catch any fuel that leaks when you take the old one off. Think its two bolts with an allen key head so easy to remove. Just make sure you have a new o-ring attached to the new part when fitting. Also best to remove the battery and wait over night for the pressure to go down in the fuel system. Quote Link to comment Share on other sites More sharing options...
Paddy78 Posted July 11, 2013 Author Share Posted July 11, 2013 Cool thanks! I don't suppose you know what size O ring? Quote Link to comment Share on other sites More sharing options...
evilscorp Posted July 12, 2013 Share Posted July 12, 2013 Have you got the replacement part? There should be a groove at the end which goes inside the fuel rail, this is where the o-ring sits. Not sure what size but if you are getting it from nissan it shouldnt be too expensive or hard to describe. This is the part you are replacing (ignore the AAM item) Quote Link to comment Share on other sites More sharing options...
narcotix Posted July 12, 2013 Share Posted July 12, 2013 I pulled out the fuel pump relay while the engine was running so to release as much pressure as possible .. I still had quite a bit of fuel leak though ... Quote Link to comment Share on other sites More sharing options...
Keyser Posted July 12, 2013 Share Posted July 12, 2013 You can do a fuel pressure release through a laptop or phone - if you have the reader and the app of course if not then best not have a lit ciggy Quote Link to comment Share on other sites More sharing options...
MartynB85 Posted July 12, 2013 Share Posted July 12, 2013 What are the symptoms of a knackered fpr? Quote Link to comment Share on other sites More sharing options...
Paddy78 Posted July 12, 2013 Author Share Posted July 12, 2013 Thanks Chris, I do have an ODB2 and Torque, so I'll have a little look into that. Symptoms of a knackered one is it ticking Quote Link to comment Share on other sites More sharing options...
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