Bullaman 15 Posted December 7, 2016 Guys The u beaut ute is blowing more soot than an old 1hz cruiser.... If I pull the vac line off the fuel reg should the engine tune change, if it doesn't is it knackered Seriously black fumes out the exhaust Running ruff, will idle Any thing obvious I should look for , wasted $90 on 02 sensor by the looks Share this post Link to post Share on other sites
gerg 10,871 Posted December 7, 2016 I had a vac line fall off the MAP sensor in my sister's EF, gave similar symptoms: black smoke and rough idle but went ok under load. Vac line off the fuel reg doesn't seem to make much difference to idle in my experience. 1 Outback Jack reacted to this Share this post Link to post Share on other sites
Bullaman 15 Posted December 7, 2016 Thanks Gerg I'll check that hose next Share this post Link to post Share on other sites
Bullaman 15 Posted December 8, 2016 [/url Guilty as charged your honor Thanks gerg Vac hose to map sensor cracked..... Running sweet now 2 deankxf and gerg reacted to this Share this post Link to post Share on other sites
dex 2,065 Posted December 8, 2016 Gerg's on the chrissy list now ,,! Share this post Link to post Share on other sites
ando76 4,354 Posted December 8, 2016 The vac line to the reg just reduces fuel pressure a fraction when there is high manifold vacuum. Good to see you got it sorted. Gerg for PM! 1 Thom reacted to this Share this post Link to post Share on other sites