Anyone know about engine codes??

[J7USS]

http://www.autoshoppingcenter.com/Volkswagen/audi_enginescode.html

Above is what ive found to do with Audi/Vw Engine codes,
Does anyone know the Difference in the 2 Engines AMB and AVJ, these are both listed for my Model 2001 - 2003 but told there must be a difference between them.... yes most likely is, hence the 2 diff codes but what??? aint gotta clue...

Still seaching for a ****** engine for mine, reckon Ill lose weight at this rate

 

[tbcuprat]

AVJ = Audi A4 150BHP, 205cc Injectors@3bar, 4 bar FPR, ETKA Partnumber 06B 133 551 M.

AMB = Audi A4 170bhp, 205cc Injectors@3bar, 4 bar FPR, ETKA Partnumber 06B 133 551M.

Hope this helps.