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Check engine is flashing, cylinder 3 and 1?

Tiny
BHAMDOC1973
  • MEMBER
  • 2013 VOLKSWAGEN TIGUAN
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 114,000 MILES
Starts and idles fine. These were the initial codes. I deleted them. You start the car idle is still fine, but the check engine is flashing, cylinder 3 and 1. They look like they have been changed. Do you think the runner flap can affect any of this? Engine revs fine.
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Thursday, March 23rd, 2023 AT 9:10 AM

12 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,110 POSTS
Yes, the intake runner control can cause misfire codes, I would check the valve and its operation, here is the location so you can check it out. Also, I would replace the spark plugs and service the throttle body. Check out the images (below). Please let us know what happens.
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Thursday, March 23rd, 2023 AT 9:46 AM
Tiny
BHAMDOC1973
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I thought number 5 is the runner or are you talking about the electrical part that controls it? How do I check it? Remove it and see if it moves when I cycle the engine?
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Thursday, March 23rd, 2023 AT 9:59 AM
Tiny
KEN L
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Yes, that is a good way to see if it works. Let me know what happens.
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Friday, March 24th, 2023 AT 10:20 AM
Tiny
BHAMDOC1973
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Runners work fine. Do you think this carbon build up is the reason? Not seeing the electrical part that controls the flaps, unless it is the one that has a vacuum line to it, but no way to test it.
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Saturday, March 25th, 2023 AT 8:56 AM
Tiny
BHAMDOC1973
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Also, I have seen a video that shows that when 3 valves are closed one cylinder valve is open, is that true?
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Saturday, March 25th, 2023 AT 9:18 AM
Tiny
KEN L
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Thanks for the videos. Yes, that is okay that one cylinder has its valve open. It looks like the flapper intake valve is working but about the actuator, does that seem to move at all? It looks like a normal build up, but I would clean the flapper valve and intake runners.
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Sunday, March 26th, 2023 AT 12:36 PM
Tiny
BHAMDOC1973
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What is the flapper valve? Am only moving the rounded black piece which has an arm.
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Sunday, March 26th, 2023 AT 12:45 PM
Tiny
KEN L
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Yes the part inside the intake looks like it is working I was asking about the actuator part.
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Monday, March 27th, 2023 AT 12:14 PM
Tiny
BHAMDOC1973
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What actuator part, how do I check it?
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Monday, March 27th, 2023 AT 12:19 PM
Tiny
KEN L
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It would be the part that attaches to the flapper arm. See if it moves when you turn the key on?
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Wednesday, March 29th, 2023 AT 12:01 PM
Tiny
BHAMDOC1973
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I bought a new intake which comes with the new arm valve as it has lots of carbon inside it, and this new one has the updated version which does not break easily.
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Wednesday, March 29th, 2023 AT 12:31 PM
Tiny
KEN L
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Good to know, please get back to us on what happens.
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Thursday, March 30th, 2023 AT 1:13 PM

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