Multiple codes maybe Vacuum/fuel related?

Tiny
BHAMDOC1973
  • MEMBER
  • 2014 BMW X5
  • 6 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 82,000 MILES
I finally got the replacement engine in. This engine has 82k, came with all the sensors included with the engine, including turbo. I of course put back the original ECM which bolts to the intake, otherwise car would not start. It started fine with no issues, ran it few days while still on the left, and of course I have to re-check everything to make sure no hoses, harness, or connections were damaged or were unplugged. I started it yesterday and took several times to start. The air filter box which connects on the top and which connects to where the MAF sensor it was off, so I thought maybe the air was not measured correctly, but it started. I have several codes which I am sure are correlated. There is a very tiny misfire, or I should say what feels like a minor vac leak which causes a minor hiccup while it's running and parked. Checked codes and this is what I have. First few show all the codes. After I deleted them and started it I got less codes which can be seen in the pictures where I have my finger in it. One of the codes may be blurry to you in one of those pictures but it's 160504. The last picture shows the codes after I deleted them again and restarted.
Friday, November 15th, 2024 AT 8:17 AM

4 Replies

Tiny
BHAMDOC1973
  • MEMBER
  • 1,557 POSTS
Another update: found an unplugged connector which belongs to the fuel pump, but the pumps had different connector head on the other motor compared to the new one, so I just replaced the pump and plugged the right one in it. I have one left connector which was plugged into the pump before and was causing all the codes, I am trying to find out where it goes to. It comes out of the harness and shares a split that goes to the compressor as I indicated in the video. If you can help me find out where it goes to, I would appreciate it.
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Friday, November 15th, 2024 AT 10:37 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,526 POSTS
It is difficult to read the code numbers, can you please post them in your response?
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Friday, November 15th, 2024 AT 10:45 AM
Tiny
BHAMDOC1973
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  • 1,557 POSTS
Don't worry about the copies for now as I have found the connector like I mentioned in post 2. Please see video in post 2 and let me know if it's possible to help.
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Friday, November 15th, 2024 AT 10:51 AM
Tiny
BHAMDOC1973
  • MEMBER
  • 1,557 POSTS
I meant dont worry about the codes in first post. If you can help me with the connector I would appreciate you
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Friday, November 15th, 2024 AT 1:37 PM

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