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Old 11-15-2010, 02:47 PM   #1
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Default AAH vs AFC engine code

Hi
I have a '95 90 Quattro that is needing an engine. I have verified that it is the AFC engine code. I am looking at a 2.8 out of a '97 A4, but don't know if it's compatible and even what the difference is between the two codes???

Any info would be greatly appreciated.

Thanks in advance!
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Old 11-16-2010, 05:20 AM   #2
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Default Re: AAH vs AFC engine code...

You will want to read through this entire site eventually:

12v.org

It will give you the technical differences; &

here is a link to where one choice is "Identification"

http://www.12v.org/engine/index.php
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Last edited by Lago Blue; 11-17-2010 at 07:08 AM.
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Old 11-16-2010, 03:22 PM   #3
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Thanks, Lago. I've been out of the VW/Audi scene since the early 90's. Looks like I've got a lot of reading to do. Thanks again.
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Old 11-16-2010, 03:51 PM   #4
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I believe the 97 would be obd2 which I believe would be a problem.
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Old 11-17-2010, 06:03 PM   #5
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as long as he changes the sensors and the flywheel, he should be fine.
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1993 Audi 90CS Quattro (loving it)
*(suspension and brakes)034 derling control arm bushings + alum-subframe bushings, 034 street density trans mounts+JHM SOLID” Short Throw shifter. B5 rear sport swaybar, B5 upper a-arms, solid VAP shock mounts + B&G springs + Bilstein sport shocks. EBC 3D front rotors + EBC green pads front and rear. 17" ASA's, head lights, aux gauges. blue plasma instrument cluster, A4 3 spoke steering wheel.
*(engine)replaced a motor at the end of 2008, gasket matched heads, ARP head studs, air box velocity stack, 4 to 3 wire MAF conversion, 18.5lbs flywheel with SPEC stage 2 clutch.
1975 VW bus (gone)
1973 VW Super Beetle (what was i thinking?)
1968 VW Bug (my pride and joy)
*2.5 inch front drop and disk brake conversion, *2110cc motor (in progress)new wiring harness,3 inch wider fenders all around, 195/45r15 front and 195/65r15 rear tiers
1991 GMC Sonoma RWD, manual, 4 banger (gone)
1979 Suzuki GS750EN with 31k original miles
1981 Suzuki GS750L (will be on a chopping block for a bobber)
1981 Yamaha XV920
1983 Yamaha XV750 (for g.f.)
1985 Dnepr MT10-36 (stolen)
1992 Dnepr MT11-32 (also stolen)
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Old 11-18-2010, 07:09 PM   #6
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The A4 will have an AFC, exact same engine, if the A4 is a manual, it even uses the same transmission. Use all of your sensors and harnessing, the A4 will be OBDII, your car is likely OBDI (switch was in 1996 I believe).

The AAH is the older 2.8L engine, first used in the 1992 100, last used in the 1994 100 and 90. It MAY have snuck in to some '95 cars.
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Old 07-05-2011, 01:36 PM   #7
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i want to know if a 2.8 5v would fit into a 93 audi 90 n e suggestions?
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Old 07-05-2011, 05:29 PM   #8
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fit, yes, plug and play, NOT A CHANCE IN HELL! why would you anyway?
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1993 Audi 90CS Quattro (loving it)
*(suspension and brakes)034 derling control arm bushings + alum-subframe bushings, 034 street density trans mounts+JHM SOLID” Short Throw shifter. B5 rear sport swaybar, B5 upper a-arms, solid VAP shock mounts + B&G springs + Bilstein sport shocks. EBC 3D front rotors + EBC green pads front and rear. 17" ASA's, head lights, aux gauges. blue plasma instrument cluster, A4 3 spoke steering wheel.
*(engine)replaced a motor at the end of 2008, gasket matched heads, ARP head studs, air box velocity stack, 4 to 3 wire MAF conversion, 18.5lbs flywheel with SPEC stage 2 clutch.
1975 VW bus (gone)
1973 VW Super Beetle (what was i thinking?)
1968 VW Bug (my pride and joy)
*2.5 inch front drop and disk brake conversion, *2110cc motor (in progress)new wiring harness,3 inch wider fenders all around, 195/45r15 front and 195/65r15 rear tiers
1991 GMC Sonoma RWD, manual, 4 banger (gone)
1979 Suzuki GS750EN with 31k original miles
1981 Suzuki GS750L (will be on a chopping block for a bobber)
1981 Yamaha XV920
1983 Yamaha XV750 (for g.f.)
1985 Dnepr MT10-36 (stolen)
1992 Dnepr MT11-32 (also stolen)
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Old 07-05-2011, 05:29 PM
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