Originally Posted by El Padre
snap !!!!!!!!! sOMETIMES SHE IS IMPOSSIBLE TO STALL BUT AFTER A VERY LONG RUN, POP HER IN REVERSE AND YOU HAVE TO HIT THE REVS HARD NOT TO STALL. SOMETIMES NOTICE THAT 3RD IS LIKE ARRRRHHHHHHHHHHH WHOOOOOOOOOOOHOOOOOO AND SOMETIMES IT ACTS LIKE 5TH OR SOMETHING, ESPECIALLY AFTER A LONG DRIVE.
Anyone know whats going on?
Originally Posted by Pud237
No idea at all, but its really quite annoying!
Big thanks to the Ned & Sam at AutoLusso - they diagnosed a slight (tiny) blow from the rear bank exhaust manifold. Sam noticed it after his eyes started stinging after he held his head down the back of the engine for a while..
This is obviously messing up the lambda reading, which is causing the engine to adjust the fuel map, and the less-than-ideal burn is why it feels a bit less responsive when over 70 degrees and not at more than 2/3rds throttle - this is when the engine takes the lambda reading into consideration when adjusting the fuelling. Maneouvring after a motorway journey is the time when the problem shows up most on mine as it meets the criteria. If I drive it an hour later, when it has cooled to under 70, the lambda is ignored and it drives fine, crisp reponse.
Maybe you have the same problem, I'll get a quote for sorting this out and decide if it is worth doing. It passed its last MOT in this state so its obviously not bad enough to affect emissions.

Back on the road: Alfa 156 3.0 24v V6, Silver with red leather, Q2 diff, GTA Teledials, headlights & inlet manifold, AutoDelta carbon intake,
decat pipe and SuperSprint rear box, FK coilovers, Dastek Unichip - my 245bhp beast!
Gone but not forgotten: Alfa 156 2.4 JTD Veloce, Vela Blu, Angel 'mad map' & BMC CDA, Ferodo DS2500s - the fastest tractor in town!
AO 'Bratpacker' No 5.
