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Will an early 2001 (H-box) ECU work in a 2000 S4 (just for diagnostic purposes)

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Old 12-12-2001, 09:29 AM
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Default Will an early 2001 (H-box) ECU work in a 2000 S4 (just for diagnostic purposes)

I'm trying to help a friend diagnose a problem with his S4 and want to know if we can swap ECUs just as a test.

Will his 2000 S4 run with my 2001 (H-box) ECU? Both cars are 6 speed.

-Dave Pramanik
Old 12-12-2001, 09:37 AM
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Just make sure you recode it not use ESP...
Old 12-12-2001, 09:43 AM
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Default I don't think 551A will work in the H/M cars... the code is completely different...

You can try it, but I don't htink it will like it at all.
Old 12-12-2001, 09:43 AM
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(or vice versa)
Old 12-12-2001, 09:46 AM
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Default Oh I'm betting it will.. The only thing is it's gonna be looking for ESP

soo you they need to make sure it's coded not use it. Maybe this can be a good test
Old 12-12-2001, 09:48 AM
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Default Well, that's not what I heard :-)

There is a major code change between the A and H/M ECU's... has to do with all kinds of other parameters being checked/used when at WOT, etc..

*shrug* I guess we'll see
Old 12-12-2001, 09:48 AM
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Default does it look for excessive spark plug installation time, hahhhhhh :)????? PAT WHERE ARE YOU?

just kidding man...you've got great effort.
Old 12-12-2001, 09:55 AM
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Default Right there is a difference code wise

but externally it's using the same sensors and engine. Eh we'll see, and no matter what wrong or right I can't use an any ME7 ECU in my car
Old 12-12-2001, 09:56 AM
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Well, I'll give it a shot... what should the ECU be recoded to?
Old 12-12-2001, 10:00 AM
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Default cuz u suck....did i tell you i saw two 130k Z8's? one driving, one in the showroom...i thought

that was the car you had a while back


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