Help with fault codes 16684/16687

ccclark

Active Member
Jul 24, 2016
45
1
Ive just had the car mapped last week running very well (in till today )just took it for a blast along the road engine warning flashing like mad ,loss off power when I got back noticed a funny burning smell so I plugged it in with my cheep code reader and got those codes it didn't give me any info just the codes any help is appreciated I hope I haven't blown her up ☹️ Sorry guys just read a sticky saying it could be coilpacks when I google them it was saying it could be a Number of things would a faulty coil put out 2 fault codes
 
Last edited:

Sparkie

Angling Adict.
Sep 25, 2009
2,541
779
Middlesex
Probably coil packs. Had 2 fail since mapping the car.
You can hear and feel it misfiring,
If you're with RAC or another get them round. Just pay for parts and they usually carry original vw versions.
Cylinder 1 and 2 are easy to get at.
3 and 4 needs a ten mm spanner and Allen keys.
Code 16684 is multiple cylinder misfires detected.
Think it's defo coil packs.


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ccclark

Active Member
Jul 24, 2016
45
1
Yea cheers guys changed plugs and coilpack 3 looks like it sorted it plugs looked like they hadn't been changed for awhile quite expensive ptfr7 something or other. platinums! lol