CR 1.6 CAYC Injection Deviation Amount

[benquw]

Hello Briskodian's  

Wonder has anyone came across unusual engine vibration ? Seems like both hot or cold engine - makes no difference ... 

160 k km so not too high .

Cannot determine pattern or rootcause seems it just appeared out of nowhere , although to be honest alternator is making some sort of bearing wear noise ( perhaps clutch on pulley is also gone - tensioner doesn't  indicate so tho, no vibration or excessive movements) . 

 

Decided to hook up VCDS and investigate further :

  086   Engine oil temperature-TOIL 65 °C
  087   Engine speed 779 /min
  163   Injection amount deviation cylinder 1-FAC_CYL_BAL1 -0.2232 mg/stroke
  164   Injection amount deviation cylinder 2-FAC_CYL_BAL2 -0.4429 mg/stroke
  165   Injection amount deviation cylinder 3-FAC_CYL_BAL3 -0.4081 mg/stroke
  166   Injection amount deviation cylinder 4-FAC_CYL_BAL4 1.0769 mg/stroke
  168   Injection valve 1; voltage-V_INJ_MAIN[0] 121.54 V
  169   Injection valve 2; voltage-V_INJ_MAIN[1] 121.05 V
  170   Injection valve 3; voltage-V_INJ_MAIN[2] 121.54 V
  171   Injection valve 4; voltage-V_INJ_MAIN[3] 116.60 V
  172   Injector valve 1; capacity-CAPA_INJ_MAIN[0] 6.0089 µF
  173   Injector valve 2; capacity-CAPA_INJ_MAIN[1] 6.0172 µF
  174   Injector valve 3; capacity-CAPA_INJ_MAIN[2] 6.0089 µF
  175   Injector valve 4; capacity-CAPA_INJ_MAIN[3] 6.3930 µF

Injector 4 ? From owning 1.9 PD engine I recall that -/+ 2.8 are normal amount - still quite high . Is it trying to compensate for something ? It's known that just because there is deviation in injection amount it is not a solid indicator for injector failure - so what could it be ? DMF ? 

 

Does anyone recommend purging  - Liquid Molly ( seems like solution to go with ) ?

 

Hope someone has some sort of ideas

 

P.S. First post - been registered for good few year and lurking around ! 

[benquw]

Seems this topic has been moved to Octavia ? How can i move it back to Fabia MK2 category? 

[john999boy]

2 hours ago, benquw said:

Seems this topic has been moved to Octavia ? How can i move it back to Fabia MK2 category? 

I don't think it was there initially but I've put it where you've asked now.