C230 Sport Coup

Ed, I finally found it!
It was on the CD, under
Repair and Maint
Engines
ME Fuel Injection Ignition System
Engine Diagnosis light in instrument cluster comes on

That document has a lot of info regarding faulty wiring harnesses and the fixes, but one of the possible fixes is reseting the the Air flap.

Thats the thing on the drivers side, front of the car, that the air filter box attaches to. When the engine is cold, it stays closed for about the 1st 30-60 seconds. Mine never seems to open fully, so I'm thinkin' it needs a reset.

It can be related to P2036 P0410 P203A.
"Malfunction in secondary air injection
actuation chain."

Damn, it took me hours(!) to find this....

So, where the "Limp home position" ? (help! :0 )

If it's like anything else on our cars, not doing a periodic reset is likely a bad thing.

AF07.61-P-2000-01A Learning in recirculated air flap actuator
ENGINE 111.981 in MODEL 203.747
1 When ignition is switched off press flap slightly past limp home
position.

90° position must be changed manually. The processor
shut-off delay has a duration of approx. 5 seconds.

2.Switch on ignition for approx. 15 seconds, switch ignition
back off again and wait for processor shut-off delay.

3. Switch ignition on for approx. 45 seconds, switch ignition
back off again and wait for processor shut-off delay.

The learn-in procedure for the recirculated air flap is then
completed.

gwako

This is great Info - but now just need to know what is "limp home position"

rubensans

Very interesting. Thanks

C230 Sport Coup

I read nearly the whole DVD, (as it applies to my model) and nothing on
what how limp home mode effects the flap.
Lots of other good stuff though!

G'night.

SeaCoupe

Excellent. How I found it on Splinters disk I don't know.

I was working a trade show for work all weekend. When I got home last nite, I was exhausted. I had you on my to do list for today.

Once you reset it, let me know if you feel the differance. I did.

To answer you question about S/C porting, I did not get a CEL from the Port job. It was unrelated, but I did run lean until the ECU learned to adapt to the increase in air.

Given that you have the header, I say do it!

Steig seems to want our business. They mostly do the Eaton's on mustangs and the cobalt, minis. No MB business. So maybe, if you offer a great DIY for the forum they have, they might give you a discount or something.

Worth a shot.

Ed

DACHIGGA

When you do figure it out, show us some pics,

Ed told me how to do it, but I didn't feel the need to.

SeaCoupe

How do you like the ported S/C?

E

DACHIGGA

It's great, with the KN filter I have, it sounds like a monster.... But I haven't really taken the car out, only in my back alley. Since it's winter and I still have school, I didn't insure the car, but ask me again in 2 weeks when I insure my car and I'll let you know then. On the few runs I did in the alley, I can feel the increase in power.

Dion

C230 Sport Coup

"1 When ignition is switched off press flap slightly past limp home
position. "
Ed, Whats the starting position? You're the only one who's ever done this...
I tried to move it once before, it seemed like it's stuck pretty good...
anything you can do to elaborate a little would be cool.

Ha, I sat and read the whole damn DVD yesterday, found lots of great stuff. This was HIGHLY buried.

SeaCoupe

Yes, it is in there pretty good. You will need to push pretty hard. All you are doing is bumping it. So, once you move it half an inch you are good.

E

gwako

...but isn't it spring loaded, and it just bounces back to its regular position..

C230 Sport Coup

c'mon ed, you've done this..
somebody throw me a freakin' bone.
Need the info....

gwako

Hey Guys,

I actually did this, and wow I am not kidding what a difference. My car has been going into limp mode (reduced power) for the last month, and I usually wait until the check engine light to come on for me to clear it or actually trip the ECU on purpose to clear it to get the car out of limp mode. But this time when it was in limp mode I actually did this reset and the car is behaving like a monster again. THANKS and THANKS AGAIN !!!

P.S. On the second step during the 45 seconds wait, you can actually see the flap close up automatically and then open up again - pretty much resetting itself.

rubensans

Can someone explain detailed this:

" press flap slightly past limp home
position "

I just don't know what it means.

Thanks.

spyderpig

Just noticed that under the part that attaches to the air box makessome noise like a hard drive accessing data once I turn the key to position 2.
Is that normal?

Oh and The flap in my car was fully opened when the ignition was off...

rubensans

The noise is normal.

So we are suposed to try to close the flap?

Thanks.

spyderpig

No I think we're suppose to open it.
but ours is open that might refer to

C230 Sport Coup

This is getting rediculous.
Whats the starting position?
Somebody sell me a vowel for god sakes!

I think I got it...
"90° position must be changed manually"

So, that means, push it, hard apparently according to E,
and knock it about 20 degrees off Kilter from straight up, and do the thang...
can't wait to try it tomorrow.

C230 Sport Coup

Do you worry at all about blowing out the rings at 18 PSI ?
I likely sending mine for a rebuild sometime soon, along with the alt,
just for preventative maint, so thats why I ask.

Mini Couper forums with ported M45's stated 18psi in case you wondered.
What was it stock?
I think with pulley it 11 psi vs. 7 psi stock. (M111)

spyderpig

So you got it?
let me know.

gwako

I actually just closed the flap a couple of times, and because its springloaded it goes back to its open position, and then I moved to step 2, which was the ignition part. You'll know when its working as an actual noise comes out of the valve, and on the third step (which is the second time you turn on the ignition) my flap actually closed on its own and then opened, telling me that in fact it actually resetted itself.

As i said I actually did this on my car and it did wonders - let me know if you have any questions.

Thanks

rubensans

I think if you do the same without touching the flap you will have the same result.

The key is to know the exact start position so the calibration is better.

HeirKranz

i have to do this to mine, i have been getting the secondary injection issue for quite some time

DACHIGGA

Well, i don't think that should be an issue, but in any case, I don't think we can get up to 18PSI on our cars, I recall that on the Minis running the same SC get more boost than us, don't quote me on this but I think that's the case.

If you are worried, I think you should talk to Ed, he's had the ported SC on his car far longer than me and should be more knowledgable on the subject.

DACHIGGA

Just an update, the MCS runs 12PSI stock and 14PSI with pulley, so the 18PSI is with pulley or not? Becuase if it's 18PSI with pulley, then no way will the M111 pull 18PSI.

Dion