got an engine running p8, anti lagged greys t35 full house and approx 430 bhp

Problems are;
driving steady down m1 starts to miss , struggle and die. put my foot down hard and goes like stink ! then at 140mph ( or so) and lack of boost and the thing will not catch back on for 2-4-even five seconds, but when it catches back on boost bang 140mph not bother !
it runs very very rich, - will not start plugs fowling !
when it does it is running on permanent choke

it cost 8.59 to get from wakefield to junct 26 of the m1 then another 20quid to get to leicester forest east (junct 21)

what the hell is up with it
blue sensor, brown sensor or 3 bar map !

 

Blue , water temp sensor , controls choke settings. The P8 has a sensor "failure " shut down programmed in at 4K . give it a go !

 

Could be either/or, all three will cause excessive fuelling.

 

Will choke still work when idle valve and throttle are modded for ALS? Or am I barking up wrong tree!

 

its more like very excessive fueling

if the map sensor is in error ( 3bar) would it think its under full boost under all conditions and fuel accordingly

it feels perfect at 3-7000 revs on the boost