similar. First time ever my car would not start few weeks back, went straight into limp mode, running totaly 100% previous and night before. Codes were relating to throttle body and main ECU fail, however one code can bring another code up. They checked the battery (almost 8 years old from new but still firing up like a new one) revealed a fault, could just be one cell not outputting correctly. New battery on, sorted now running fantastic.
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MR200 Stage 3 200PS
Evans Halshaw
Mountune Pro