Got a 6 month ban and yes I found out the hard way 145 mph
stright past parked up Feds on m3 anyway put my cossy in the garage
for a well earned rest started her up every 2 days and after about 5months
it would not start and as I am new to the workings of a cossy I am old school
so checked for a spark and fuel and both were fine had a look on Internet
and heard replace coolant sensor so I bought one from motorsportdevelopements along with charge air sensor
new plugs leads rotar arm dizzy cap phase sensor and group a coil
fitted all this and still no joy and after a lot of swearing
looked back on Internet and got crank sensor and I just got to ad
motorsportdevelopements are the quickest ever for parts anyway
back to the problem fitted crank sensor and it started on the button
well happy started to clear up tools and the car died went to start again
and now it ticks over for about 45 seconds and won't rev up as soon as you
give it some gas it cuts out please somebody help me before I go insane
help. Help. Help. Help

 

If it was sparking this shows the ecu was getting a clean signal from the crank sensor, ie the sensor was ok.
I would do the wiggle test, don't keep starting up every 2 days, you'll coke it up big time, they run rich on a std ecu, much richer than the engine needs, famous for sooting plugs.
What plugs did you put in, what spec is the cossie, a set of IK27 are very good plugs.
What you need to do is wait for it to conk out and see what's missing ie spark or fuel.
The cps connector loom side play up, as the terminals lose thier grip on the pins so have a wiggle here esp.
tabetha

 

Thanks fo info.
What is the wiggle test:-
the plugs I've just put in are ik27's.
The spec is chipped but don't know what chip it is injectors are dark green
upgraded turbo but don't know what one.how would I know what it is.
K&N panel filter,dump valve upgrade,scorpion exhaust,3 bar map,

checked today phase sensor gap this was fine at 0.3mm
also checked crank sensor this was fine at 1mm
got a realy good spark and good fuel still will any tic over for 45secs
soon as you touch the throttle it dies.
Need help as it's needs mot asap

 

iscv unplugged ?

 

really? thats strange, the cold start is fully mappable, infact i could get one to cold stsrt at lambda 1 if i wanted, it would seem its nothing at all to do with the ecus ability as you are implying....again

 

Won't be ISCV if this were the case it would not start at all without more air, I ran mine with ISCV disconnected as had problem, just used throttle instead when cold.

As said do the wiggle test, wherby "Wiggling" CPS connector with engine running as these do suffer poor connections on the car side, though it sounds to me like a fuelling/ignition problem as it's when you OPEN the throttle, check the fuel filter.

You most likely have a T34 turbo, most likely with a .48 exhaust housing, very good turbos!, easiest way is to look at the inlet hose I think it's something like there smaller at the filter end can't remember off hand it's a T34.

Martin

 

Thanks for replys I'm going to change fuel filter and see if it changes I just want to go for a blast the other half is realy getting on my tits about the whole thing.and she does not know how much I spent at motorsportdevelopements ha ha .if it was fuel filter I'm sure it would rev up a little bit surley.I am just guessing help help

 

Merely going by my experience with a MSD chip, but then there's no substitute for correct mapping.
A off the shelf chip by it's very nature cannot be it's best, otherwise you/msd would not have any "extra" to get by mapping cars, or are you saying mappings not necessary as your chips are so good ?, in which case why are you mapping ?
MY experience with L6 shows me these tend to run rich, hang on that's what I said, but then I'm not an arse licker on here like some are.
tabetha

 

you stated it was due to the "std ecu"

which is totally incorrect

we generally live map cars that are in for every bit of power they can get, or its a real odd spec with head work etc. we have had a lot of cars in for mapping on our off the shelf packages and we cannot better them with live mapping.

the fact remains, the rich running has nothing at all to do with the ecu as you keep implying, its the software on it.

 

if it cuts out when you touch the throttle then it could be the TPS.
Not sure why it would cut out after 45 seconds tho.. except if your immobiliser had a ignition supply problem, then it would reset and cut the car out.

 

Just fitted new fuel filter and still the car won't start so I thought I would unplug one sensor at a time and try to start and guess what? I unpluged the idle control valve and it started first time but the idle is very low but it still won't rev up as soon as you plug the idle control valve back on it cuts out. Realy confused now do I buy a new one and hope for the best.but can not understand why It won't rev up. Some one must of had this problem before please HELP ME can not stand to see my cossy sitting still any more
failing no one knowing I'm going to buy a trailer and drive it to Blackpool from eastbourne to see the boys at motorsportdevelopements but this will cost me a bundle and I've got to do all this without the outher half finding out. Mmmmmmmmmmm Please Help me some one
or does anyone know of someone that will come to eastbourne with dianostic gear ???????
My number is 07940979382 please help me I'm going to smash this car to pieces soon with a sledge hammer also what is a tps and where is it located only just getting used to cossy bit and bobs would the tps stop me reving the engine or not ???????????????????????

 

Sounds like TPS is adjusted wrong, its a red sensor attached to throttle body, you need to remove throttle body to take it off, you can easily check the O/P on these.

Martin

 

Good luck mines doing the same but will tick over ok as soon as it is revved pops bangs and cuts out.

 

Hi i see you have bought a lot of parts try spraying wd40 around the inlet and see if anything happens ive just done it to mine and it plays up so took it off even tho it was new but was leaking try this.

 

you got 6 months to sort it!!!!-------------