Acura TSX getting P0685 error ECM failure
08-20-2017, 04:13 AM
#1
Cruisin'
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Acura TSX getting P0685 error ECM failure
Hey all, I just got a 2010 TSX v6 3.5l less than a month ago and I am getting a few errors after a few weeks. Day 1 of issue engine would stall at 4000-4800 rpm with check oil flash then start up again when rpm drops back down. Assumed vtec solenoid failure. Day 2 check engine light appears with check VSA, then check emission then check charging systems all in the same drive. EBOD2 says there is error code P0685 ECM. As soon as I get home I check the oil cap and oil is flowing over the valve head springs. I turn off the car and turn it on and all of the errors are gone. Day 3 I test drive hard to check the vtec and no issues. Should I be worried? Is this ghost codes leading to something more serious?
08-21-2017, 04:40 PM
#2
Where did you buy this car that you would have all these problems right after bringing it home? I had a similar story with a car I purchased from a used lot, ended up having to bring it back after a week. Did you perform any repairs?
08-29-2017, 05:11 AM
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Cruisin'
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You kinda nailed it. It was definitely electrical because the battery was fine but the bolt that holds the ground wire for the sensors was loose. Tightened it up and no more issues. Thanks for the advise.
