flashing coil light on dash fault code p0101

[DAVEEVO]

hi guys 

 

my fabia has an issue where when im in 4/5th gear decelerating feet off the pedals and it gets to 1250 rpm the coil light flashes amber and sometimes the engine symbol illuminates solid amber. 

 

ive replaced the maf censor as fault code would suggest but same problem still persists . my thoughts are it could have something to do with  the vacuum side of things as it only ever happens during deceleration . ive tried to research it and read about the brake light switch and the boost pressure sensor ,the brake lights are working as normal so my first port of call would be the boost sensor , any thoughts please ??? car is mk2 fabia 2013 1.6tdi 105hp with 45000 miles on it .  all hoses checked for leaks as well 

 

thanks guys 

 

dave .

 

ps the car drives normally when the lights are on (not in limp mode etc)

Edited 6 June, 2021 by DAVEEVO

[sepulchrave]

It could be low fuel rail pressure rather than vacuum related.

[DAVEEVO]

thanks for your reply bud

 

during my research i read something like if the same fault triggers 3 times the engine light will come on and the code has always been maf intake values related  p0101 ,would that eliminate the fuel rail pressure issue ??

 

not trying to be clever just trying to apply logic from what ive read (which isnt always a good thing is it lol)

[sepulchrave]

http://wiki.ross-tech.com/wiki/index.php/16485/P0101/000257

 

Never interpret a fault code literally, logic will get you nowhere.

In engineering experience is king for this very reason.

[DAVEEVO]

ok so now the scanner is also showing  code 07329 in engine diagnostics section   any idea what that code relates to guys please ? 

[sepulchrave]

13 minutes ago, DAVEEVO said:

ok so now the scanner is also showing  code 07329 in engine diagnostics section   any idea what that code relates to guys please ? 

 

No idea because that isn't a DTC.

[DAVEEVO]

it did say dealer specific code ?

[sepulchrave]

1 hour ago, DAVEEVO said:

it did say dealer specific code ?

 

Not much to be done then, we don't have access to dealer equipment, obviously.

[DAVEEVO]

yeah just wondered if anybody else had had this code .. cheers anyway ..

[UrbanPanzer]

what scanner you using ?

Edited 14 June, 2021 by UrbanPanzer

[DAVEEVO]

It's the carista app and Bluetooth obd dongle . 

[demerwin]

Good evening, 

 

Is your problem solved? I have a VW Polo 6R CAYC 105 hp with the same symptoms. 

[demerwin]

On 15/06/2021 at 08:21, DAVEEVO said:

It's the carista app and Bluetooth obd dongle . 

Hi I have a VW Polo 6R with CAYC motorcode 105 hp and have the same problem. Do you know the solution?