[Cruzing12]

Well I'm coming around to it.

Can I just say none of this is answered the question I was trying to find out. The reason I joined group was to get help and all I've seen so far a people arguing and having a pissing contest and everything for the most part what has been said I found on line hence the reason I joined forum. Guess this is the wrong forum to get a straight answer so I'm out of this one.

Usually we aren't this bitter, in the short of it no. it's not required unless a code or drivability issues arise.

As for a scanner I mentioned I don't know of a particular unit, I would figure one with a type of module control, function command to be able to preform such a task.

 

[Baldrico1]

Can I just say none of this is answered the question I was trying to find out. The reason I joined group was to get help and all I've seen so far a people arguing and having a pissing contest and everything for the most part what has been said I found on line hence the reason I joined forum. Guess this is the wrong forum to get a straight answer so I'm out of this one.

For A18xer A18xel (2H0)

Vauxhall Workshop Service and Repair Manuals > Astra J > Engine | Engine control and fuel system - 1.6L (LDE, LLU), 1.8L (2H0) | Repair Instructions | Crankshaft Position System Variation Learn

Astra J > Vauxhall Workshop Service and Repair Manuals > Engine | Engine control and fuel system - 1.6L (LDE, LLU), 1.8L (2H0) | Repair Instructions | Crankshaft Position System Variation Learn

workshop-manuals.com

Scan tools usually used opcom/vauxcom, tech2, GM GDS2 I think snapon, autel units can do this too. Some folks on Astra forums say it isn’t required!

Crank Relearn Instructions (With and Without an OBD Scanner/Reader) | Car OBD Diagnostics, ECU Chip Tuning & Auto Repair Support

I don’t have any experience of having done this procedure. I’m not a mechanic or engineer. Hopefully it’s of some use to you.
Good luck

 

[dancosta12573]

For A18xer A18xel (2H0)

Vauxhall Workshop Service and Repair Manuals > Astra J > Engine | Engine control and fuel system - 1.6L (LDE, LLU), 1.8L (2H0) | Repair Instructions | Crankshaft Position System Variation Learn

Astra J > Vauxhall Workshop Service and Repair Manuals > Engine | Engine control and fuel system - 1.6L (LDE, LLU), 1.8L (2H0) | Repair Instructions | Crankshaft Position System Variation Learn

workshop-manuals.com

Scan tools usually used opcom/vauxcom, tech2, GM GDS2 I think snapon, autel units can do this too. Some folks on Astra forums say it isn’t required!

Crank Relearn Instructions (With and Without an OBD Scanner/Reader) | Car OBD Diagnostics, ECU Chip Tuning & Auto Repair Support

I don’t have any experience of having done this procedure. I’m not a mechanic or engineer. Hopefully it’s of some use to you.
Good luck

Thank you . It is greatly appreciated

 

[dancosta12573]

I answered your question in the first reply to the thread, and several times since. The answer is NO.

No you gave me your answer. If you were so sure of it you woul8have spent so much time arguing and trying to prove your point. The only answer you gave it the same as I can find online. That is why I am here.