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

[Kent Kinard]

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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