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2009 Mitsubishi Outlander P1590 and P1777 Fault Code: Engine Speed Change Issue at 95,000km

Model: 2009 Mitsubishi Outlander Fault Code: P1590 Posted: 2015-03-04 19:44

I own a 2009 Mitsubishi Outlander with a 2.4L AWCS engine, currently at 95,000 kilometers. Occasionally, the vehicle fails to change speed smoothly during driving. This issue is accompanied by two diagnostic trouble codes: P1590 and P1770. I'm seeking help identifying the root cause of these faults and how to resolve them. Any insights or technical explanations would be greatly appreciated.

Related fault codes
P1590P1777
Comments (2)
Anonymous 2019-03-29 20:51

I don't have a definitive fix, but I experienced the same P1590 code on my vehicle just under a week ago. It was accompanied by another code, P1777. If you find a solution or identify what these codes mean, please share—this could help others with similar issues. Best of luck!

Anonymous 2019-03-29 21:13

The original poster has not been active since 2015, so it's unlikely they will respond to this thread.