A few running problems on 2.8i

[woodgerhutt]

hi all hows things? i have a 2.8i touring i have sorted a few problems out so far but now running out of ideas

ok so were to begin it likes to idle just under 1000rpm i will be spraying brake cleaner around the pipes on intake side to check for leaks i have just changed the cam sensor because i have been getting power then no power and bogging below 3k and after 3k felt like it was driving up a very steep hill and after changing its great pulls hard also the injectors were clicking very bad which after reading up about it found out that the injectors were batch firing like a limp mode after changing the cam sensor they sound less tappy but still seems like they are still batch firing i have seen on a few websites about the coulor of injectors i have green ones i think what size are they?and are these the right ones its had the intake conversion but it was done very bad so had it fiberglassed also i have noticed i have a fuel pressure reg as you can see in the pics when i first had the car the neddle was sat at 4bar but very jumpy never smooth but since i have done these few things its now smooth its just had a full service its had alot of money pumped into it by the last owner but never any tlc shrik cams,bigger intake,port polished,remap,tublur exhaust mani,ashley back box,coilovers all round,strut bars front and rear,all m3 running gear all adjustable plus lsd diff its a great motor its my ladie

also i have found that i have 2 water pipes on the thorttle body but no pipes there? will this cause problems some where maybe with the air temp sensor?

and i think my lamba sensors are playing up or maybe plugged into the wrong ones?

[Ferret]

Start by checking for air leaks, like you've already suggested, and then I think you're best off getting codes read. So much work has been done to the engine, you'll just be going in blind without the codes.

And whats that dial thing down near the air filter ?

[woodgerhutt]

its a temp dial due to no aux driven fan to cool down the engine it now elctic lol i have checked 2day with brake cleaner and revs do not go up or down so no air leaks i have checked the injectors and they are brown tops 36lb? not sure

also when coming to stop when its cold the revs drop down when its hot it stays jst under 1k so cud it be the cooling pipes from the thorttle body that are not there? any help

[Dale69]

The coolant pipez on the throttle body act as a choke, thats a 325 throttle body, u need to fit a 328 throttle body

[stickle]

also look under the throttle body, to see if the extra vacuum slot is connected

[woodgerhutt]

vacuum slot it this for the exhaust flap thing?

and i need to get a 2.8 body i was told it was a 2.8 body can some 1 jst jst check my pics to check it is a 2.8 lol

[woodgerhutt]

does the 2.8 not have this then if so i have to get 1 any ideas were i can get 1

[stickle]

the m50 throttle body has a different arrangement for vacuum hoses ( i did have one here on my desk but my mate took it away to be bored out)

the m52 (328i) throttle body doesnt have the vacuum slot, just the water hoses.

the vacuum hoses connect to fuel/charcoal filter and brake something lol.

i will try get pics of mine.

Attachment 1774 M50 throttle body, see the vacuum hose connector on the right.

Attachment 1775 M52 throttle body, only coolant connections.

[woodgerhutt]

cant view the pics and i dont have any pipes on the body but the intake still has the bit that the m52 has its a square bit of plastic with the pipes and air temp sensor on it but it was gaffer taped up and leaking bad so i had the hole thing fiberglass into the intake my dad did it for me i will take it off 2morra and take pics i have never see it done this way?

[woodgerhutt]

is the vac pipe for the idle valve?