6a12 Mivec MD rpm stuck at 6500

[wiramaroon]

hello king² and otai².. firstly i want to appolagize for my broken english. i'm using proton perdana with 6a12 mivec md engine. the engine running in normal condition before (code: MD305054). after my ecu burn, i replace it with halfcut ecu (code:316487), the engine can start but rpm can't go above 6.5k.. some people said i used wrong ecu. later i buy another halfcut ecu (code: MD305059) since the code almost same with my old ecu.. yet the rpm still stuck at 6.5k.. kepala peningg already.. can king² and otai² help me?

thanks in advance

 

[DanzEterna]

u need to find the original mivec md ECU as other models have RPM limiters,
alternative option will be to eliminate the rev cut in the ecu

 

[sarutobi84]

Stuck at 6.5k sounds like limp mode/safe mode.go diagnose your ecu for error code.
Maybe some sensor aldready kaput! You need to find why your ecu burn also.else it can effect your new ecu too.

Go diagnose error code 1st and i think u should correct ecu or can kacuk v6 mivec ecu

 

[touringe17a]

change your coolant sensor. should be ok after that. mivec ecu require the temp of your coolant more than 60> degree in order to open mivec. another thing dont direct spool ur radiator fan as it might bring down the water temp too low.

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