Sale ends todayGet 30% off any course (excluding packages)
Ends in --- --- ---
Forum Posts
Courses
Blog
Tech Articles
If it's not really about tuning or wiring. Then it belongs in here.
= Resolved threads
Hello folks, I have a DS3 Racing with 207hp 1.6 4 cyl Thp engine.
On diagnostics monitor it shows me on cylinder 3 an injection duration of 10ms on idle. 1, 2 and 4 only have 1ms. on cyl 3 it goes a bit down to 8-9 ms after revving and letting it go down. the engine runs quietly, but i can feel a little shaking from time to time.
I use Autocom for diagnostics.
No error codes.
What I found out and tried so far:
Cleaning the engine with verylube
Changing ignition coils and spark plugs.
Use cleaning additives in the petrol.
I checked with an endoscope and intake valves have a lot of carbon residue. Piston also some left even after the cleaning process.
Does anyone have any opinions?
Attached Files
Photo_2024-10-26-15_32_27_732.JPG
- Photo_2024-10-26-15_48_06_253.JPG
Andreas,
Safe to say if one cylinder was receiving 10x the fuel of the other 3 cylinders, the engine would sound and run terribly.
My guess is there's an error in the monitor itself, perhaps it's off 1 decimal place and 10 is actually 1.0 ms.
You could purchase or borrow an oscilloscope so you can measure the actual injector on times to verify what's happening.
