M111.955 loosing power when engine is warm (sorry writing in english)

[Achsmanschette43402]

Hello

I'm very sorry writing in English but Google translator is no good fron Finnish to Germany. I hope it's like this if not you can delete this thread.

I'm getting really desperate with my problem.

My car is loosing power when engine is warm. Engine light is on. When i clear all codes and start driving with cold engine it's working as it should be.

What i have done so far:

- changed MAF twice

- changed the camshaft position sensor + plug for the wire on the sensors end

- changed front lambda

- camshaft position controller (magnet)

- changed check valve (A 002 140 68 60)

- checked ECU for oil and there was none

- changed oil filter and oil

- changed fuel filter

- changed air filter

- purified purge valve (something to do with gas vapors)

- purified air shut off valve (it was stuck)

- checked air flow with following instructions http://sdrv.ms/1dduzbP

- purified throttle body

- checked pipes and stuff for air leaks

- changed cooling temperature sensor

- changed spark plugs

Official Star says that it is MAF that should be changed...again.

Another workshop says it is cam shaft position sensor...again.

One said that it could be catalytic converter and one said it could be crankshaft sensor.

Mechanical timing was one suggestion.

I dont' know what to do. Does somebody here know???

Any help is appreciated.

[Spannungsprüfer4783]

Hi,

Which trouble code do you get and when?

Do you have the power loss before you get the MIL on?

Is it the P0410 from your link?

Regards

[Nanonetworks]

Motortalk wird international ;)

Welcome janikannisto,

May I take the liberty of translating your article:

"Ich bin langsam am Verzweifeln mit meinem Problem. Mein Auto verliert

bei warmen Motor Leistung. MKL ist an. Wenn alle Fehlercodes ge

löscht werden und das Auto im kalten Zustand neu gestartet wird,

läuft es so, wie es soll.

Was ich bis jetzt gemacht habe:

- Luftmassenmesser zweimal getauscht

- Nockenwellensensor getauscht + "plug for the wire on the sensors end"?

- Lambdasonde vor KAT getauscht

- Nockenwellensteller (Magnet) getauscht

- Rückschlagventil Sekundärluft getauscht

- auf Öl im Kabelbaum kontrolliert -> kein Öl

- Kraftstofffilter getauscht

- Luftfilter getauscht

- Auslassventile gereinigt

- Reinigung Luftabsperrventil? (war fest/verdreckt)

- nach dieser Anleitung Luftstrom geprüft (http://sdrv.ms/1dduzbP)

- Reinigung Drosselklappe

- Dichtheit Ansaugtrakt geprüft

- Temperatursensor getauscht

- Zündkerzen getauscht

Die Stardiagnose sagt, dass es am Luftmassenmesser liegt und nocheinmal getauscht werden soll

Eine andere Werkstatt sagte, es sei der Nockenwellensensor.

Einer sagte, es liege am KAT, noch ein anderer vermutete den Kurbelwellensensor."

[Achsmanschette43402]

P0341: Camshaft Position Sensor "A" Circuit Range/Performance (Bank 1 or Single Sensor)

This is with cheap code reader.

Zitat:

Original geschrieben von broken

Hi,

Which trouble code do you get and when?

Do you have the power loss before you get the MIL on?

Is it the P0410 from your link?

Regards

[Spannungsprüfer4783]

Zitat:

Original geschrieben von janikannisto

P0341: Camshaft Position Sensor "A" Circuit Range/Performance (Bank 1 or Single Sensor)

This is with cheap code reader.

Zitat:

Original geschrieben von janikannisto

Zitat:

Original geschrieben von broken

Hi,

Which trouble code do you get and when?

Do you have the power loss before you get the MIL on?

Is it the P0410 from your link?

Regards

Ok, I'm more experienced with intake and supercharger related errors. I'm out, sorry.

A general advice. Can your code reader log live data? Try to log data from your error free cold start to to MIL coming up. Like air mass, fuel pressure, air intake pressure, short term fuel trim, ignition angle, speed, rpm, throtte position. This helps a lot.

Good luck!

a guess, you have oil in your wires.

[Nanonetworks]

Zitat:

Original geschrieben von broken

a guess, you have oil in your wires.

He already checked this, there's no oil in vehicle loom.

[Druckluftschrauber30803]

measure / exchange the benzinepump

[Spannungsprüfer4783]

Zitat:

Original geschrieben von pannenlos

measure / exchange the benzinepump

Why is the camshaft position sensor error related to minor fuel pressure?

@nanon... He only checked the ECU for oil, that's probably not enough.

[Achsmanschette43402]

Thank you all taking part to this thread.

 

About this fuel pump thing...could it be faulty only when engine gets warm?

Because loosing power starts when engine is 80 or more celcius.

When engine is cold it works great.

 

Engine idling is good both cold and warm engine.

[Druckluftschrauber30803]

Hallo,

is the floating bearing in the DC-engine warm, is the rotary speed down...

[Achsmanschette43402]

That i have not checked.

One thing is that my battery is quite weak. Of course I have not driven much lately. Could weak battery cause these kind of problems when engine is warm?

If so then battery has been weak sence i bought this car because problems started week after deal.

This problems has been an issue starting from 2011 :) First it was now and then but now it is every time when engine is warm.

[MichaelHartig]

Could you check the age of the Battery? nice to know will be how old the car is, because in cars which are assembled before 2003 there are often Problems like that

but the problems are normally permanent

[Achsmanschette43402]

Oh sorry :) Did not mention that any where. Year 2001.

[MichaelHartig]

there will be a possibility that you have destroyed you SAM. Did you changed the battey in the past ?

[Achsmanschette43402]

No battery changes.

 

Tomorrow im taking car to a workshop. Lets see what he finds out.