Found this on YouTube and thought I would share. Most of the information is covered in the Rave but interesting none the less.

 

Great video. Thanks.
Didnt know they can program the coolant temp sensor at different temps.

 

Thanks for posting that. A couple observations. Does anyone reset the adaption values when replacing things like the MAF or the CKPS? Which of the handhelds out there will do this? If no one does, could this account for the high failure rate of certain of things like Bosch MAFs which I'm continually reading about being "bad out of the box". If the ECU is developing new fuel and timing tables based on how the engine is running over the last 50k or whatever, wouldn't swapping in a new part continue to trigger codes because the stored values for the old MAF would cause the engine to run out of spec? Same for O2 sensors. how many people are resetting the ECU back to default initial tables when replacing parts like this? I don't know if this hocus pocus is actually worth the trouble, but it seems to me that these contradictions could cause problems, aka codes, if not addressed properly. Since probably zero of us have Testbook at our disposal I'm really curious which devices can perform these functions. Nanocom maybe, the rest likely not?

The part about the diesel engines, especially the tail end where it talks about restarting the engine after servicing the injectors was as good as any Monty Python bit. Turn the key on for 30 seconds, then off for five, repeating this six times. And if that doesn't work, go back and try the first thing you tried that didn't work and led you to this step. Great stuff.

Finally, the last 60 seconds or so where they were hustling the D2 through the cones in the wet was worth the whole 45 minutes.

Thanks again for posting, had I stumbled on it myself on YouTube I probably would have passed it over to watch Zappa's Stockholm '73 rendition of Dupree's Paradise for the 1200th time.

Here's a link to the Zappa if anyone else is a fan, this is really tasty.

 

The RAVE manual states to reset adaptions for new CkPS units.
Honestly I do it anytime I replace a major electronic component dealing with engine and ECU... new O2 sensors, new IAC valve, new MAF, vacuum purge valve, vacuum solenoid valve, camshaft position sensor, fuel injectors, coil pack, spark plugs, and fuel pump.

From personal experience the Nanocom, Hawkeye and Foxwell can reset adaptions back to factory specs.

 

Based on the statement below from the Engine Management System section of the RAVE, it appears the adapted values are reset any time the battery is disconnected. No diagnostic tool required.

 

The statements at 18:50, 20:08, & 21:27 contradict the RAVE. I think the RAVE is just too loosely worded. Many adaptions may be reset by disconnecting the battery but certain ones are written to EEPROM and must be manually reset.

 

i think if you disconnect the battery for a couple days it will.

 

What’s the textbook unit they use to change all these parameters? Anyone have one ?

 

Testbook was a piece of dealer diagnostic and programming equipment. I think the reason you would use testbook would be to reset the adaptions for only the device you were changing as opposed to wiping the entire slate clean, so to speak, by disconnecting the battery. Here are a couple docs I found which describe the ECU function in great detail, however none of them make it clear what happens if you disconnect the battery. I now think the RAVE is probably correct, perhaps even as a precaution, and that erasing adaptions specific to a particular component is the preferred method.

Bosch Motronic M5.2.1 EMS ECU Guide

BOSCH_521_Systems

Discovery 2 - Land Rover Technical Academy - Bosch M5.2.1. Engine

 

Here is more documentation for future reference.