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Old 11-16-2021, 01:02 PM   #17
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Join Date: Aug 2018
Location: Woodland Wa
Posts: 1,309
Quote:
Originally Posted by DrRobin View Post
I have a Ctek battery sense fitted, it was that which said 15% capacity, voltage was 12.3V but it was quite cold. The car started ok and when running voltage was measured at 14.1v, pretty normal for my car.

The car did run better with the MAF disconnected and with it circuit my fuel trim and plugs are showing it is running rich, so it definitely points to the MAF.

I am going to take it as soon as my 5 point T20 arrives, give it a clean if it needs it and unless it is as good connected as disconnected then I will order a new one. I should know pretty quickly now what I know what to look for.

Thanks for all the help.
Ok your battery voltage looks ok. The 15% capacity was throwing me off.
I do think it is most likely a MAF issue. I also thought it could be a vacuum leak.
But with negative fuel trims and and plug color showing a rich condition a vacuum leak is unlikely.
Keep us posted I like to know final outcomes.
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