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Discussion summary
YOUR RESEARCHECU flash RoW software '99-'01
Leading reported evidence
Replace may require different cats
Suggestion or failed attempt
No successful repair reported for this finding.
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Suggestion
Note that some changes may require different cats to prevent damage (and emissions).
Leading evidence: 'Replace may require different cats' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace may require different cats' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
If this is for a street car and you will not be running 100 oct gas.
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Anyone who has flashed their US '99-'01 3.4 with RoW software?
Any issues? The RoW software should not trigger the CEL as much as the RoW software.
Do you have any fault codes after the flash?
I am curious to hear who did that mod as well and how it is done ?
can you do the flash by simply plugging a laptop to the obdii ? or you have to send the ecu and replace it ?
EU software is designed for 98 octane.
I have the EU3 software (European Union) for my race car that only runs 100oct race gas.
I don't believe there is a "ROW" version.
http://books.google.com/books?id=Raa...%20eu3&f=false
If this is for a street car and you will not be running 100 oct gas. I would stick to the stock mapping.
For the '99-'01 3.4 using DME 5.2.2 it seems there is a RoW version, or am I mistaken?
If anyone is using the RoW or EU software in their US Porsches, have you come across any problems? Any fault codes?
http://books.google.se/books?id=Raan...%20RoW&f=false
Depending in the model and model year there are more than 2 (USA/Canada and RoW) pre-defined programs. For example see the chart below..
And yes, there is a program that does not use the after cat sensors.
Note that some changes may require different cats to prevent damage (and emissions).
In the US these are only legal for racing purposes -- not street driving.
Europen octane rating and North American octane ratings are not the same thing. The EU 98 is about the same and the 94 we have here.
Also, why would the secondary O2 sensor fail faster with the catalytic removed?
Why doesn't someone just make an relay or something that manipulates the ECU to think that the smog pump is working, and then get a set of o2 spacers for the secondary sensors, or maybe a set of manipulators? Those are readily available.
If I find something out, I'll post up. I have a few 996's that need this done. Plus there are (from what I remember when doing a vacuum system upgrade) around 3 vacuum lines going to the smog pump and bits. 3 more places for a vacuum leak we don't need.
This is a source reference. Confirm exact model applicability in the original material.
