Just a quick one any reason why on a lot of the parts data bases when i put in my reg it keeps saying my engine code is atz but its actually aqw ???

Cos they're crap, probably. 

Databases have errors and omissions even those from the parts or car manufacturers, these errors and omissions are copied and repeated and when databases are merged often more errors and omissions are added.  Then parts get superseded and rationalised bringing in slight or complete mismatches and more errors and omissions.  With tens or hundreds of thousands of parts on computer systems updates and corrections aren't kept up or even bothered with often.  Then a new system is bought in . . . and guess wot 'appens. 😄

 

Edited 16 May, 20233 yr by nta16

4 hours ago, Breezy_Pete said:

Cos they're crap, probably. 

 

I have a great time with these wonderful databases. My car is a late 2006 build, but comes back as a 2007 on a lot of systems - due to it being an MY07 Mk1, but most systems interpret this as a Mk2.