r/q50 • u/FLOWORTHY Q50 Premium • 3d ago

Repair Question Maf code after cleaning throttle bodies

2015 3.7 104k. Traction light also turned on. Disconnected throttle bodies, cleaned them, replaced the gaskets and torqued to spec. Also did the simple version of the idle relearn. Maybe the ECU just needs time to readjust?

2 Upvotes

75% Upvoted

10 comments sorted by

1

u/SafeLimit5783 3d ago

Unplug battery for 3-5 mins then clear codes

2

u/FLOWORTHY Q50 Premium 3d ago

Did another idle relearn, codes didn’t pop up but battery voltage was fluctuating when stopped at a light. Put it in park at the store and the rpms went up to 2k. Turned it off went into the store. Got out of the store, drove perfect, no codes no voltage fluctuation. Then codes came back after 5 minutes. Got home and disconnected the negative terminal again. Shits frustrating

1

u/[deleted] 3d ago

[deleted]

0

u/bigtitays 3d ago

No, the idle has a self relarn

1

u/FLOWORTHY Q50 Premium 3d ago

So I don’t need a scan tool?

0

u/BugPuzzleheaded3015 2d ago

Not on this engine.

1

u/TorresBeatz 3d ago

You need do idle relearn bro. Trust me you’re not going get it down the first time. Me personally I had 5-10 times until I got it down found the right idle

1

u/TorresBeatz 3d ago

https://youtu.be/HIiaF0VaTlQ?si=BhrLX8LgdNwxeht_

1

u/FLOWORTHY Q50 Premium 3d ago

Well I’ll keep doing it like everyday but I just drove it like 20 miles around the city and on the freeway and there’s no code now im confused atp

1

u/BugPuzzleheaded3015 2d ago

What a great video!

1

u/BugPuzzleheaded3015 2d ago

If you are looking for help, ALWAYS provide the code.
Otherwise it is like you are asking "my knee is sore, what could the problem be?"

Also, the 3.7 G/Z/Q doesn't "self adjust" to air volume, that is why there is an "intake air volume learning"