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  1. sebastien

    290 mcx apex misses at full throttle.

    I did a full season last year with no issue and the only thing i change this year is a hallman boost controler. I check the injectors by adding pressure in mcx ecu, i did a leak test, change plugs with a 0.20 gap and check my fuel pump pressur and everything is OK. So what is next...it only...


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