Engine check light on

[Rusty]

Hi guys any of u had this problem, my ECL is on and error is idel too rich. So my mechanic replaced all MAF and O2 sensor. Still came on after a few days. Any suggestions

[hawkeye]

Any power kit installed?

[Rusty]

No bro

[thaiedwin]

http://mbworld.org/forums/c-class-w203/440985-rough-idle-drive.html

 

 

This guy seems to have more problem and have the same error as you

[Merceman]

Go to CnC or workshops to run a diagnostic check should able to tell where is problem.

[Martin]

I had the same problem too. Warning light on and off. Suspect the piggy back.

[akula]

I went cnc to check but they told me to remove piggy back first

[Martin]

I went cnc to check but they told me to remove piggy back first

what brand piggy back you installed?

[Merceman]

I went cnc to check but they told me to remove piggy back first

have it checked by the shop install your ECU first. If after removing ECU piggy problem still persist, go CnC

[hawkeye]

Bros he got no piggy back.

[akula]

monster tune

what brand piggy back you installed?

[akula]

I didn't have time to go check by the shop but the engine light went off by itself after 2 days....till now did not reappear again (scratch head!)

have it checked by the shop install your ECU first. If after removing ECU piggy problem still persist, go CnC

[Rusty]

I replaced plugs, O2 and maf sensor and did full service,then I found a hole in my intercooler. Some debris hand damaged it. Now sourcing out for intercooler. Hiaz.. Hey thanks guys for all the brain storming