CLK-Class (W209) 2003 on: CLK 270 CDI, CLK 200K, CLK 200 CGI, CLK 240, CLK 320, CLK 350, CLK 500, CLK 550 [Coupes & Cabriolets]

M271 Boost cut, Restart car= engine check light

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Old May 8, 2011 | 12:43 PM
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YZYgold's Avatar
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From: Singapore
CLK200 W209
M271 Boost cut, Restart car= engine check light

Hi

Ive got a clk200 using the M271 engine.

Ive upped the engine pulley(fabricated shud b abt same as the c230) and supercharger pulley (kleeman) and have gotten 1 bar of boost, however my ecu has been giving me boost cuts and when i restart the car, im getting an engine check light.

Would anyone know a solution to this problem?

My car has been custom tunned via obd2 port. I doubt its the tunning part. Its AF ratios are quite on the safe side and not much advance of the ignition.

Im also using a 1 step colder iridium plug. Heat range 7. Ive got the kleeman extractor and HKS drop in filter.

It gives pretty darn good power but the torque and hp drops after 4.6k rpm.

ZY
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