TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

Can an APX Engine Code type be replaced by another code

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Old Apr 22, 2002 | 09:43 AM
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Default Can an APX Engine Code type be replaced by another code

I am currently searching for another TT engine since a Superchip blew mine up. ( new website under construction ).

I have sourced another 20V Turbo Engine which has the K03 turbo etc however the engine code is different. Will this be a problem mating it with my ECU which maybe programmed with the old engine code information. Would another re-chip solve this problem.

Any advice appreciated.
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Old Apr 22, 2002 | 09:59 AM
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Default APX is not a familar code to me, that may be from an A4 or a Passat....

in which case, the block will fit but everything else will not like manifolds (exhaust and intake) A/C compressors etc....could be more trouble than it is worth.

ATC(TT), AWW(Jetta/GTI) or AWD(Jetta/GTI) are direct bolt ins..

AMU is the 225 (I think)
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Old Apr 22, 2002 | 10:02 AM
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They use APX for the 225 overseas.
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Old Apr 22, 2002 | 10:06 AM
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You want the APX engine. It has lower compression, and a K04 turbo, not K03.
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Old Apr 22, 2002 | 10:07 AM
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ah.....gotcha.....then yes, you want the APX =P
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Old Apr 22, 2002 | 10:11 AM
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AJQ for 180, and APP for.......I dunno yet! 8^)
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Old Apr 22, 2002 | 10:12 AM
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APP could be the 150hp TT
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Old Apr 22, 2002 | 10:17 AM
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Ahhh! You could be correct sir!
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Old Apr 22, 2002 | 11:03 AM
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Default Re: Ahhh! You could be correct sir!

My 180FWD has the APX code on it??????

I have found an AED unit to replace it.

Will this not fit then for sure???

thanks
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Old Apr 22, 2002 | 11:15 AM
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What country are you in?
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