First time attempting this yesterday on a friends 2001. We've got the blocks and a guide I've read throughly.
Using nanocom we sent it to high but couldn't get the nsr block in so jacked it up on the towbar to enable us to do so.
We messed about for ages and were getting constant variables with the nsr sensor so replaced it with a new one.
In a nutshell, the engine had to run a lot to power the eas compressor, turning off the engine caused the nano to shut down and need rebooting so we left it running. Hot sweaty day, irritable but we got there in the end.

It's easy for me to jack up the front and rear of the car over my pit and insert the blocks, no scrabbling underneath needed, I have pit Jack's.
My query..
If I disable the compressor, let all the air out of the springs then it would be easy for us to lift the car up and down as necessary to fit the blocks, read the heights and store them without the engine running and us having to shout over the engine noise(diesel). What I'm not sure of is would the nano still see the heights and store them etc with just the ign on position 2 ?
Just thinking aloud!

Chrisp38 wrote:

My query..
If I disable the compressor, let all the air out of the springs then it would be easy for us to lift the car up and down as necessary to fit the blocks, read the heights and store them without the engine running and us having to shout over the engine noise(diesel). What I'm not sure of is would the nano still see the heights and store them etc with just the ign on position 2 ?

In a word, yes. As long as the ignition is on (and the battery is good), that is the easiest way of doing it.. The ECU won't try to take control and change the heights and you won't be gassing yourself with exhaust fumes while under the car either. Jack it up, fit the High blocks, lower it down onto the blocks, read and write the heights, lift it up, remove High blocks and fit Standard blocks and so on.

Just be aware that if the battery starts to go flat the BeCM shuts down different systems one at a time in order of importance. I was doing the calibration on one car using just this method and partway through it started refusing to accept the new settings and then came up with a sensor out of range error. It was only when I noticed that the HEVAC had turned off, that we realised what the problem was. We had to put a battery charger on it, leave it to bring the battery voltage up to something sensible and clear the error before we could carry on.

Great, Thanks.