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Mercedes Benz SLK200 Kompressor 2002 - Rough running, codes P2024 & P2002 #

Posted by Paul Mifsud on July 20, 2012, 9:52 pm

Year of Manufacture *: 2002
Engine Size and Code *: 2000 170444
( Optional ) Scanner Used: verus , auto diagnos, star
( Optional) Fault Codes: p2024 p2002 no MIL

Hi

I've had this vehicle in for rough running and poor starting, replaced engine loom, cam magnet and seal, as the loom was saturated with oil. Solved part of the problem, engine now running nice but hard to start when hot.I am know thinking about k40 relay but not quite sure what it controls as I lack info/circuit diagrams.

Please help!

Re: mercedes slk200 kompressor

Posted by James Eardley <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat3143' width='330' height='300' border=0 style='border:none;'> on July 20, 2012, 11:01 pm, in reply to "mercedes slk200 kompressor"

Hi paul

I have P2024 as EVAP circuit (petrol)

I have P2002 as particulate trap-bank 1 efficiency (diesel)??

James

Re: mercedes slk200 kompressor

Posted by Kevin Apps <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2589' width='330' height='300' border=0 style='border:none;'> on July 21, 2012, 12:31 am, in reply to "mercedes slk200 kompressor"
Kevin Apps

Paul
If you are useing STAR why are you also useing mickey mouse scanners ?

Is the Star not showing any guided diagnostics ?

Kev.

Re: mercedes slk200 kompressor

Posted by paul mifsud <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat3013' width='330' height='300' border=0 style='border:none;'> on July 21, 2012, 8:15 am, in reply to "Re: mercedes slk200 kompressor"

Hi guys Thanks for your quick response,I am not getting any clues during cranking, fuel press, engine speed, inj pulse with noids lights all ok. This morning Im trying a new k40 relay.

Re: mercedes slk200 kompressor

Posted by paul mifsud <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat3013' width='330' height='300' border=0 style='border:none;'> on July 21, 2012, 7:49 pm, in reply to "Re: mercedes slk200 kompressor"

Hi James Im very sorry to mislead your diagnosis but the second code was meant to be p2004, which is now no longer displayed. thanks any how

Re: mercedes slk200 kompressor

Posted by Mark Carter <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1428' width='330' height='300' border=0 style='border:none;'> on July 21, 2012, 9:00 pm, in reply to "Re: mercedes slk200 kompressor"
Mark Carter

Hi Paul,

I have;
P2004 Mercedes-Benz Intake Manifold Runner Control Stuck Open Bank 1

But I'm with Kevin, if you have Star then why not use the guided diagnostics within DAS.

Mark

Modern cars, Its all wizardry and witchcraft

Re: mercedes slk200 kompressor

Posted by James Eardley <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat3143' width='330' height='300' border=0 style='border:none;'> on July 21, 2012, 9:51 pm, in reply to "Re: mercedes slk200 kompressor"

Hi Paul

so, is the EVAP(P2024) code permenant/reoccuring?

Did fuel trims, emission readings, manifold vacuum, lambda readings suggest anything before the memory was reset?

Can you Provide any test results so that we can
form an opinion, I would say Coolant temp sensor readings at least.
cheers hth
James

Re: mercedes slk200 kompressor

Posted by paul mifsud <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat3013' width='330' height='300' border=0 style='border:none;'> on July 23, 2012, 8:38 am, in reply to "Re: mercedes slk200 kompressor"
Paul Mifsud

Hi James already replaced ECT sensor with a known good one I borrowed from a donor vehicle. no change.

Re: mercedes slk200 kompressor

Posted by Glyn Morgan <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2543' width='330' height='300' border=0 style='border:none;'> on July 23, 2012, 11:26 am, in reply to "Re: mercedes slk200 kompressor"
Glyn Morgan

Hi Paul

Have you checked the fuel pressure ?

Cheers Glyn

Re: mercedes slk200 kompressor

Posted by James Eardley <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat3143' width='330' height='300' border=0 style='border:none;'> on July 23, 2012, 11:44 am, in reply to "Re: mercedes slk200 kompressor"

Hi Paul

I believe you are missing my point if you want help with a problem with any car you MUST provide us with the tests that have been carried out and more importantly the RESULTS.

Otherwise all we can do is guess at what the problem is.

For example, you say the fuel pressure is OK. I am not saying it is not, but, if we knew how you tested it and what results you got we can judge for ourselves if the results are within spec.

Also this way people could offer different test procedures and then we may all learn something.

As for the coolant temp sensor that has been replaced, this was not mentioned earlier?

Why was it replaced?
What tests were carried out?
What results did you get?

For example, even if there was a coolant temp sensor code in the memory.

The tests procedure could be,
Is there water in the system?
Is the water circulating?
What are the readings on scan data?
Can you back up any discrepancies with a scope?

Then if there is a problem,
Is the wiring ok? (load test)
Is the ECU faulty?
Has the ECU got the correct powers and grounds?

As you can see I have not even mentioned the coolant temp sensor at all yet.

I am not saying this is the correct order or only way of testing because every circumstance is different and your test results can move you in different directions.

I hope you don't think I am having a go at you (Im not) I am just trying to stress the point of accurate/methodical diagnostics.

This is the way people who can help you, diagnose cars, so hopefully you can understand how it is hard for people to form an opinion or point you in the correct direction with the problems you are experiencing with this merc, without any test or results.

HTH

James

Re: mercedes slk200 kompressor

Posted by paul mifsud <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat3013' width='330' height='300' border=0 style='border:none;'> on July 23, 2012, 9:39 pm, in reply to "Re: mercedes slk200 kompressor"
Paul Mifsud

Hi Thanks to all that helped, the case is know closed. Replaced fuel pump and now it starts every time hot or cold. Sometimes we over look things. FIXED Regards to all from Paul

Re: mercedes slk200 kompressor

Posted by Kevin Apps <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2589' width='330' height='300' border=0 style='border:none;'> on July 23, 2012, 10:37 pm, in reply to "Re: mercedes slk200 kompressor"
Kevin Apps

Paul.
"Replaced fuel pump and now it starts every time hot or cold"
But you posted fuel pressure OK. perhaps you could post the info. james asked for so it can help others.
Kev.

Re: mercedes slk200 kompressor

Posted by paul mifsud <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat3013' width='330' height='300' border=0 style='border:none;'> on July 24, 2012, 8:41 am, in reply to "Re: mercedes slk200 kompressor"

Hi kev and James The problem with the pump was intermittent, at the time I posted fuel pressure ok I saw it switching on and off on live data,cracked open at the union and fuel seemed to be well pressurised and since it was starting from cold I ruled it out, I wish I had the right fittings for my pressure transducer.

Re: Mercedes Benz SLK200 Kompressor 2002 - Rough running, codes P2024 & P2002 #

Posted by Kevin Apps <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2589' width='330' height='300' border=0 style='border:none;'> on July 24, 2012, 10:24 am, in reply to "Mercedes Benz SLK200 Kompressor 2002 - Rough running, codes P2024 & P2002 #"
Kevin Apps

Paul.

"but hard to start when hot" no mention of intermittent there.

Fuel pressure OK, tested by cracking a fuel line

what can i say ! !

Kev.

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