khalilnasser

Dears,

I really need your help here please.
I recently changed my c240 2002 engine because oil and water got mixed up in the engine
I swapped my c240 engine with c320 engine as advised by the dealer, but now after the swap when i press the kick down or on hard acceleration my car jerk a lot and the code P20d4 load limit reach is displayed on the scanner

first the dealer said its a MAF sensor error and replaced the MAF sensor and the fuel pedal with brand new one , after this the jerk and the same error code still appeared and the problem is not solved.
I was doing some research and I found that the Engine ECU have to be replaced in order to accommodate the new fuel and air mixture needed for the new 320 bigger engine.

please guys can anybody help me do i have to change the ECU and if yes does replacing the ECU only will solve my problem?

I need help soon as i am paying a lot of money on the drain if the dealer continue with his trial and error behavior.

Thanks guys for your continuous support
Regards,
Have a great weekend.

tjts1

This is not true. The dealer should be able to recode the ECU for an C320. You might also want to try a C320 TCM.

khalilnasser

Sorry i didnt get your answer should i replace the ecu or not

tjts1

No

khalilnasser

So how can insolve the jerk on thenkickdown what could be doing this

khalilnasser

Dear please can someone help me solve this problem i still have this jerk and loss of power when accelerating i changed everything the maf sensor and the throttle body the engine ecm replaced with a c320 ecm and still have the problem please can someone help menwhat left to check andnif it is a ecm problem or mechanical plroblem the only error showing on the scanner is p20d4 load limit active