[Enabled]

Throttle body can be faulty as well and cause the internal error due to bad adaptations from throttle. I've seen this failure variant a few times.

Sometimes it was the dme, sometimes it was the throttle body.

[BobbySD]

Throttle body can be faulty as well and cause the internal error due to bad adaptations from throttle. I've seen this failure variant a few times.

Sometimes it was the dme, sometimes it was the throttle body.

its probably impossible to diagnose throttle body except change for another one right? if it works fine during diagnosis...

[BobbySD]

ECU tested... no issue in that

[willisodhiambo]

The only way I see this.
1. Car dies only when injection and firing stop.
2. DME will always log a fault if there is a reason why ignition or injection is failing and it is trying its best.
3. The only way the car should die without DME logging a fault is if its power supply is getting interrupted. It cant log a fault if it is not powered and it also cant self interrogate if power is gone.

DSC should log a fault that it cant see DME but if it also logs nothing them a main power supply is failing. Trace power supply connection points at junction box, and grounds. Also start thinking about junction box. With a vin I could go over the wiring and share what I think.

Connect a meter to dme supply and ground and do a live run. Check if voltage is still available when car begins to go. I think it is a power supply fault before dme relay. Main supply line and or ground

[ZAV]

BobbySD,
your problem is faulty oil thermal sensor. Disconnect it and test.

REP + THANKS is very appreciated

[willisodhiambo]

Was this problem ever resolved?

[BobbySD]

BobbySD,
your problem is faulty oil thermal sensor. Disconnect it and test.

REP + THANKS is very appreciated

Was this problem ever resolved?

I disconnected the oil sensor as ZAV adviced. For now Im testing it. Its two days and for now its ok. I want test it more because by me feeling the problem occurs more when it was hot outside and its raining now.

Anyway it looks promising.

[willisodhiambo]

I still want an explanation how an oil sensor can cause engine stall. I like to understand the theory behind a repair, not just do things because it worked before

[ZAV]

I post oscilloscope image later.

[ZAV]

I looked at my old notes. Only a bad signal was saved. At some point, the oil level sensor generated a very high frequency signal compared to the correct signal. As far as I understand, this bad signal restarted ms45 (buffer overflow or something else, I don't know) - at this moment the diagnostic connection was disconnected.