Hello, i have w212 om651 2009 sedan, but sometimes when its cold the rpm fluctuates by 50/100 up in idle other than that it runs good acceleretes good with kickdown.But after i replaced the quantity control valve on hp fuel pump Engine light has come on dash after reving it to 2k rpm and power...
GAD was founded in 2009 where we developed bespoke ECU Remapping software for motorsport clients, moving forward, we have extended to road vehicles for both performance and economy, contact GAD Tuninghttp://www.GADTuning.co.ukto discuss your requirements.
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