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Ok, so the RN wire is a 12V wire? Is it a safe assumption to say that if the ECU itself (in case of solid SDL etc) shuts down a bank, it just...
Thanks again Ian for all these diagrams, very kind to share them. Invaluable. About the injectors, I mentioned switched earth because I read that...
I had one 550 diagram from you already, the left side, and a different one from the HVAC, so this is very welcome, now I must have everything....
I took a look at the already-opened-before ECU, with an eyeloupe, and noticed that some pins have had terrible corrosion in the past. I made a...
The TPS's on both sides do not show strange values when one bank shuts down, so that should rule out a ECU internal power problem, correct? No...
Yes, the whole cross-data thing is not helping much at all. And if the plugs next to the ECU are necessary, then my 2 scanners are the cause of...
Edit to the above, should be: when the injectors are closed, enrichening does NOT give the O2 a better value
Thanks for the informative picture! makes it clear where all parts are going, and will help in measuring. @ Bart, I will try to clean the...
But it certainly helps me in understanding the system of signal transportation, and now I have something new to check. Thanks again for your help...
Hi Ian, I did a smoke test before I did the major, and all was well then, so I assume the hoses (all of which I checked and some I replaced) are...
So that fun was short lived... I had like 50 km of completely trouble free driving, when the next day, when I wanted to show the missus that the...
And as I just came back from testing, it indeed does make no difference at all (as it can't , when the middle is not connected, clear! ) The brown...
I do not know if it is important, but there are differences between the original Bosch 0 332 019 140 and the suggested replacement the Brown GM...
Ok, final update ( I hope). After installing the new new pumps, the car got its performance back, more or less. But it still sometimes hesitated,...
as with a 355 you mean? brrrr.....same filter.....
I guess I misunderstood a bit, I understood that the fans stay on too long. My mistake. If the temperature , minutes after starting the engine,...
I have been a tester, and I found installing rather simple, not different from a OEM one. I have just made my first test drive after an extensive...
The clutch problem sounds like a problem with the slave cylinder. On a 550 it is a combined system on top of the bell housing, not sure about the...
About CEL, on a Euro car there are only 2 reasons for a CEL, one (if I remember correctly) for the O2 sensors misbehaving, other I forgot. On a...
Normally changing both gas pedal potentiometer and throttle valve potentiometer for contactless magnetic ones does the trick, but in my case it...
