Mapping S2,Boost limit

[newsh]

Exactly. I even bought VEMS but was not happy with it.

Maxxecu would be good, but at least 3 times the cost of mapping motronic...

Where is Jonus, close to London?

Norway

[LHD_Kid]

You have vems or maxxecu plug and play ecus there are plenty of peolple capable to tune them. And if you really want the best to map for you you have Valdas in here mapping vems or Jonus on maxxecu.

Exactly. I even bought VEMS but was not happy with it.

Maxxecu would be good, but at least 3 times the cost of mapping motronic...

Where is Jonus, close to London?

[newsh]

The way Pete has described this to me it’s a fuel cut. If you’re getting fuel cut and there’s no code I would suggest it has to be something wrong with the ECU, either hardware or software.
Try my spare ECU with a stock WG spring and the N75 reconnected and see what happens.

[Costash]

Sure... but then, I still need to find someone to map it. I still need to purchase the ECU... it really isn't a no brainer if there is a sensible option for a one-off mapping of the existing motronic...

You have vems or maxxecu plug and play ecus there are plenty of peolple capable to tune them. And if you really want the best to map for you you have Valdas in here mapping vems or Jonus on maxxecu.

[Rikki Kitto]

Frustrating for sure, I'll be watching for good news as I'm ment to be popping back up there once i have the funds for the work that's planned

[piotr]

Can't understand why Mark wouldn't of done this at the beggining, hope it gets resolved

Same mate-i can't get My head around it
cheers

[Rikki Kitto]

Can't understand why Mark wouldn't of done this at the beggining, hope it gets resolved

[piotr]

Running just on a huge spring is a horrid way of mapping these cars. They drive crappy and laggy. It sounds like you are hitting MAF limit. It should be disabled in your software. You also can’t run 1.9 bar boost on a stock MAP sensor that only reads to a max of 1.5 bar of boost.

Thank you for that .
so it's just confirming that my MAP sensor in ECU must be replaced .I will ring Mark with all that info and see what he will say

[audiman]

Running just on a huge spring is a horrid way of mapping these cars. They drive crappy and laggy. It sounds like you are hitting MAF limit. It should be disabled in your software. You also can’t run 1.9 bar boost on a stock MAP sensor that only reads to a max of 1.5 bar of boost.

[piotr]

Sure... but then, I still need to find someone to map it. I still need to purchase the ECU... it really isn't a no brainer if there is a sensible option for a one-off mapping of the existing motronic...

I start to think that if you not going for some crazy power and you don't care about things like lounch control ,anti lag it's no point to spend alot of money to buy aftermarket ecu and then spend money again to map it .if you can get somebody good who can tune your existing ecu I would stick with OE - at least this is what I'm going to do for now

[LHD_Kid]

Aftermarket ecu is the way .least two options using oem loom is no brainer...

Sure... but then, I still need to find someone to map it. I still need to purchase the ECU... it really isn't a no brainer if there is a sensible option for a one-off mapping of the existing motronic...

[LHD_Kid]

post #28 of your link...

Most likely the ECU clicks as well during this.
Any "fuel cut" software wise will have a "Maximum boost pressure exceeded" code logged.

If there is no such code, it's not fuel cut. End of.

[piotr]

When it was cutting out what was the code? That might help narrow it down. Seem to remember that a certain person said a fuel cut always leaves a code!

https://www.s2forum.com/forum/techni...light=fuel+cut

No dtc-s stored at all (apart from usual when engine not running )

[twoqu]

When it was cutting out what was the code? That might help narrow it down. Seem to remember that a certain person said a fuel cut always leaves a code!

https://www.s2forum.com/forum/technical/electrical/49172-fuel-cut-at-full-boost-why?t=47932&highlight=fuel+cut

[piotr]

And just to clarify boys ,as some of you mentioned about chasing the extra 20bhp.
this is not what I'm after ,I'm not chasing extra BHP,What I'm after is getting to the bottom of what the issue is that going over 1.3 bar is impossible .
if the car would be boosting like some of you mentioned to 1.7-1.8 bar and would produce 350bhp for example I would be more then happy.but the fact that I can't get that level of boost that other people have got from the same setup really bugs me .