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Doosan G30P-5:
Multiple Codes, 771, 352, 353

Replaced dither valves and tmap, cleared the codes and we're all good.

• Posted 18 Mar 2017 02:30
• Reply by grego
• Alberta, Canada

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352 and 353 indicate MAP sensor issues,damaged wiring component failure ect, however 771 is FTV valves (or dither valves) or attached vacuum hose problems. Possible plugged orifice on side of mixer.
Make sure all vacuum hoses are leak free, confirm the PCV valve (very critical) and spark plugs are new.
Resolving 771 fault may eliminate other faults.

• Posted 5 Feb 2017 10:02
• Reply by tom_p
• Alberta, Canada

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