ARL150 Cold Start Rough Ide HELP!!

pd150turkey

Active Member
Aug 29, 2015
3
0
Hi gurus

i have 2004 seat leon arl150 tdi (270.000 km) 6 speed manual , which suffer from cold starting rough idle(shaking) , when engine temp become 80-90 degree rough idle gone works good

what we done for fixing

1-CTS seems fine
2-New Tanden Pump
3-New n75
4-New Turbo
5-İnjector Calibration , O ring change , seal control
6-Camshaft belt and all lifters changed during looked for injectors condtion
7-Battery controlled
8-Timinig belt changed
9-dual mass flywheel
10-cam postion sensor
11-crankshaft sensor

Car is considered as stock except nozzles

1-injector nozzles changed with aftermaket italian seven(7) brand bigger injectors , which made for older model Passats assume 2000 years or earlier.
 
Last edited:

pd150turkey

Active Member
Aug 29, 2015
3
0
some data readings

Cold Start İdle
Fuel quantatiy correction cylender 1 -0.12 mg/H
Fuel quantatiy correction cylender 2 -0.12 mg/H
Fuel quantatiy correction cylender 3 -0.5 mg/H
Fuel quantatiy correction cylender 4 0.35 mg/H

Hot Engine İdle (No rough Idle)
Fuel quantatiy correction cylender 1 0.02 mg/H
Fuel quantatiy correction cylender 2 -0.21 mg/H
Fuel quantatiy correction cylender 3 1.27 mg/H
Fuel quantatiy correction cylender 4 -1.11 mg/H
 

Dan FR

Meth addict. Stage 2+ Yo!
Nov 14, 2013
1,795
8
Caerdydd
It'll be the injector nozzles most likely, get the right ones back in the car. Diesels are highly sensitive to incorrect fuelling when cold
 
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