Hello, I would like to get guidance and help with basic ignition diagnostics. I have done my homework reading the instruction material, watched hours and hours of videos but I have an situation where I can not access the device on a regular basis. So the normal routine is that the only time I have w...

Hello,

I forgot to mention that I solved this issue. It was components in the ECU that had failed. The TCV driver and many others were changed, and the engine runs like a charm.

Removed

ECM-640A is stored if cam position deviates too much (over 10 degrees for longer than 15 seconds). Put Pico aside for a moment and use your scan tool. There are two data PID-s to check. Camshaft actual and camshaft desired value. At idle check that these mach. And then do this when driving. When va...

Hello,

The code is now ECM-640A. The non-oem valve does not adjust the cam properly, so the difference in actual and measured advance of the cam triggers this?

It is new but non-oem part. The current draw is certainly very different. Also the voltage. I wonder would someone have an insight into this, how does the Volvo ECU deem the signal faulty, does it measure current, voltage or the actual advance of the cam, that would help to determine is the signal (...

Hello, Here is the capture with a new solenoid. The current looks a little different than from Volrem's capture, but I used the 30A TA189 so that might explain the different waveform? On the other hand, I think it is clear that the current is not rising as fast, and has nothing to do with the clamp....

Hello kukushka, I must apologise, I didn't see the part you had mentioned about using this technique with the cable in a coil. Victor2k is right in saying with a rolled cable this is effectively now a coil and any current flow will be amplified which could result in some interference. Going back to...

Hello, I made a grounding cable where the other end is a common welding clamp with a 5-meter long 16mm2 wire attached to a fullmetal grouding block reguarly used in cabinets. I had problems finding good grounds or attaching the small crocodile clips to them, so it this setup OK to use? With this I ...

It is a 4425 custom kit as don't need all the automotive accessories, and yes, I have those clips aswell.

Sometimes I feel the connection is better with the large clamp.

As there are no problems to expect, I will continue using it when necessary.

Thanks.