Engine: 70 T5: V70 T5 rough running, any help appreciated.

[PNuT]

Originally Posted by jod t5

lol......it will hold the boost better , as you know cos the w/g is shut till the mbc takes effect....
i am still very concerned that the lambda zoorst sensor has the caperbility to adjust the mixture enough to compensate for the extra boost in proportion with the map tables you are running......
do you think its a mte issue?
cheers
jod

i dont think im loosing boost due to an airleak.... thats for sure!

assuming the ecu knows how much air is flowing then it should fuel for that? & then adjust again if its not correct when its coming out....

i am running slightly less max boost than the origional mte map.... i need to get someone to try my ecu before i think about it being an mte problem

[Jod T5]

Originally Posted by PNuT

i am running slightly less max boost than the origional mte map.... i need to get someone to try my ecu before i think about it being an mte problem

i wonder if your 4.4 will run ok in a 4.3?........
feel a mini meet in the offing.....?

Originally Posted by PNuT

assuming the ecu knows how much air is flowing then it should fuel for that? & then adjust again if its not correct when its coming out....

but it doesn't because some of the air should be going out via wastegate accross the map but its not cos the bcs is keeping it shut when the ecu thinks its ajar......
sure the lambda sensor can adjust the mixture ratio but i am not convinced it can adjust it by the amount that is needed...

cheers
jod

[PNuT]

the difference between our two systems would show up.... i think i have two exhaust sensors & you only have one?

i personally think the ecu can cope with more than you give credit, i have also blocked off the evap system so the ecu is assuming that air is going in aswell?

as the ecu is adaptive, i would veiw it this way...


from fresh (basic/modified)

ecu reads all its sensors thruout normal driving(what ever that is) & will compensate for anything that isnt right....

i assume there will be an *exhaust sensor map* that the ecu relys on? IF you adjust fueling with a remap then i would expect this map has to be adjusted aswell to compensate for fueling?

IF the exhaust sensors wernt doing the correct job, would you expect the emlight to come on with a fault?

all interesting stuff

LOL

[Jod T5]

Originally Posted by PNuT

IF the exhaust sensors wernt doing the correct job, would you expect the emlight to come on with a fault?

yes, true...ive got a headache now so im off for a pint.....
cheers
jod

[PNuT]

Originally Posted by jod t5

yes, true...ive got a headache now so im off for a pint.....
cheers
jod

ive already lubricated my emsystem