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Registered
2012 XAT
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118 Posts
Discussion Starter · #1 ·
Yesterday my mom’s car gave a p0028 and p0026 code. I read those were usually caused by low oil. I checked and it was VERY low. Nothing showing up on the dipstick. 3 quarts later and it showed just above the low line. I thought it was a crazy amount to have to add but I drove it around, no smoke or oddness. It had been 8000 miles since the last oil change. I cleared the code and told her we could do an oil change tomorrow.

This morning she called because the car is stalling. It is stalling in a very peculiar way. When you roll to a stop, the engine idles too low and stalls. It did stall me once while coasting at 30mph. Has no trouble starting right back up, all the it idles very low for maybe a second. She brought it over and I changed the oil (only 4 quarts came out)

It seems to idle just fine. I tried doing the idle relearn just in case and no dice. Battery tested fine. Has anyone experienced this before?

Below are videos of what is happening.

While driving
https://youtu.be/k7lFNwj7ae8

On ignition
https://youtu.be/J43kAd7THxs
 

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Registered
2003 EJ20K Forester
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379 Posts
Is it knocking? Running it that low on oil is most likely to damage big end bearings first, which would cause your stalling issues, especially since it is on overrun. If the internal friction is too high, it won't be able to catch the idle properly after overrun.
 

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Registered
1998 Forester
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951 Posts
It's still a idle relearn issue, but I suggest you clean the throttle body.
We see this a lot on ecm resets. It won't stabilize until you clean it. I try to do it on head gasket changes.
For what it's worth, I started adding a maf sensor clean too.

Sent from my SAMSUNG-SM-G935A using Tapatalk
 
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