impossible to start

Hector_Moriceau

Hello everyone. I'm new.

I just installed the jetronic kit on my mercedes 190e 2.0 m102.
I'm having trouble starting the engine. For the moment, it hasn't started yet. I've checked the wiring, and the possible air intakes with a smoke machine, and everything seems to be in order.

I've recorded some logs during the start-up phase.
Can you help me understand what's going on?

analyzer-mercedes-190e-20250313-194251.csv

372kB

log-mercedes-190e-v412-20250313-195239.csv

261kB

Hector_Moriceau

I'd also like to point out that I've dismantled the spark plugs and there's spark extinguisher and petrol coming in. I've tested the injectors, which work perfectly.

I recorded the calibrations in the ECU.

the car doesn't go faster than 170rpm.

Hector_Moriceau

[IMG]https://invent-labs.com/forum/assets/files/2025-03-14/1741960187-231443-screenshot-2025-03-14-144754.png[/IMG]
Here is my current electrical diagram without the lamda sensor because my car doesn't have one.

JHM

Hector_Moriceau
AN (RPM signal) is missing on the diagram.

Hector_Moriceau

No, look at the bottom, the AN is at the end of the circuit on my wiring.

Hector_Moriceau

Well, I'm back with the most basic solution. I simply cleaned my spark plugs, which were dirty. they're running now. with a few problems, but I'll come back to that in another discussion. 🙂