just a quicky... does the vac line on the fpr run straight to the manifold?

first run after my re-build, its starts misfiring at around 3k, havnt been over that for running in reasons

i have a V2 WRX with parralel fueal rails, and SARD fpr set at 3.5 bar (both new after re-build)

cheers

 

hi mate,fpr pipe runs direct to manifold,sounds like the usual coil pack issue might be causing a misfire then !

 

Have you defo got the FPR's feed port/s and tank return port hooked up correctly?

 

the fuel pressure is to high iirc it should be set at 3bar with the vacuum disconnected.

 

just thought... i put 95ron unleaded in it to get it home, out of my petrol mower gerry can... might be the reason

 

Probably. How long has the petrol been in the can for? Could've gone stale and lost it's calorific value?

 

been in there for a few months... ill fill it up with V power or tesco super before i take it for its MOT

 

Bound to be stale fuel - and what with it starting off as only 95 RON anyway.............