[ROVERNET - UK] SD1 Vitesse/EFI: which fuel pressure regulator
(standard/adjustable)?
Kent Kinard
kentkinard at verizon.net
Mon Jan 21 21:14:35 GMT 2008
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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