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.
Image (Click to make bigger)
Thumb
Thursday, March 23rd, 2023 AT 9:10 AM

12 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 51,685 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.
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Thursday, March 23rd, 2023 AT 9:46 AM
Tiny
BHAMDOC1973
  • MEMBER
  • 1,842 POSTS
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?
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Thursday, March 23rd, 2023 AT 9:59 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 51,685 POSTS
Yes, that is a good way to see if it works. Let me know what happens.
Was this
answer
helpful?
Yes
No
Friday, March 24th, 2023 AT 10:20 AM
Tiny
BHAMDOC1973
  • MEMBER
  • 1,842 POSTS
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.
Videos (Click to make bigger)
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Saturday, March 25th, 2023 AT 8:56 AM
Tiny
BHAMDOC1973
  • MEMBER
  • 1,842 POSTS
Also, I have seen a video that shows that when 3 valves are closed one cylinder valve is open, is that true?
Was this
answer
helpful?
Yes
No
Saturday, March 25th, 2023 AT 9:18 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 51,685 POSTS
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.
Was this
answer
helpful?
Yes
No
Sunday, March 26th, 2023 AT 12:36 PM
Tiny
BHAMDOC1973
  • MEMBER
  • 1,842 POSTS
What is the flapper valve? Am only moving the rounded black piece which has an arm.
Was this
answer
helpful?
Yes
No
Sunday, March 26th, 2023 AT 12:45 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 51,685 POSTS
Yes the part inside the intake looks like it is working I was asking about the actuator part.
Was this
answer
helpful?
Yes
No
Monday, March 27th, 2023 AT 12:14 PM
Tiny
BHAMDOC1973
  • MEMBER
  • 1,842 POSTS
What actuator part, how do I check it?
Was this
answer
helpful?
Yes
No
Monday, March 27th, 2023 AT 12:19 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 51,685 POSTS
It would be the part that attaches to the flapper arm. See if it moves when you turn the key on?
Was this
answer
helpful?
Yes
No
Wednesday, March 29th, 2023 AT 12:01 PM
Tiny
BHAMDOC1973
  • MEMBER
  • 1,842 POSTS
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.
Was this
answer
helpful?
Yes
No
Wednesday, March 29th, 2023 AT 12:31 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 51,685 POSTS
Good to know, please get back to us on what happens.
Was this
answer
helpful?
Yes
No
Thursday, March 30th, 2023 AT 1:13 PM

Please login or register to post a reply.

Related Engine Revs Up Content

Idle Air Control Motor Replacement
GUIDE
Idle Air Control Motor Replacement
The idle air con­trol mo­tor or idle speed con­trol mo­tor is de­signed to ad­just the air flow into the in­take man­i­fold at en­gine idle. En­gine idle speed is mon­i­tored by the PCM...