[ROVERNET - UK] SD1 Vitesse/EFI: which fuel pressure regulator (standard/adjustable)?

[pj.info]

Hi Kent

Thank you for the hint. Btw. do you think this replacement would basically affect the emission values?

Best regards,
Pierre.

Le lundi 21 janvier 2008 22:14, vous avez écrit :
> Hi Pierre,
> Replacing the fuel pressure regulator is a good idea anyway.  The 4CU 
> systems tend to run lean at the top end and the standard fix has been to 
> install a rising rate fuel pressure regulator.  RPI sells them and has 
> listed them on their Ebay store in the past.
> 
> Roverly,
> Kent K.
> 
> pj.info wrote:
> > Dear Rovernetters
> >
> > I noticed that the membrane of my pressure regulator lets air passing through 
> > from the fuel supply / tank return side to the manifold depression pipe side. 
> > Is this normal? I suspect the regulator being defective. (I already had 
> > several cold start problems -just unwilling to fire up- although the battery 
> > was in perfect condition and the distributor / spark plug cables ok and fuel 
> > flowing though the rails by slightly depressing the flap of the air-flow 
> > meter).
> >
> > Having had a look at Rimmers,  there are 2 possible choices for the fuel 
> > pressure regulator:
> > - Standard	ERR268 (now replaced by EAC1284P)
> > - Adjustable	EAC1284UR
> >
> > => Does the adjustable regulator fit just in place of the standard one?
> > => Does anybody have had any experience with adjustable pressure regulators, 
> > i.e. how would you tune it (could this have an influence on the pollution 
> > figures NOx,CO,...)?
> >
> > Thank you for your advice.
> >
> > Best regards,
> > Pierre.
> > '86 SD1 - Vitesse
> >
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