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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Any VRSF DP fix DIY?



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      04-25-2017, 07:13 PM   #1
Diox
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Any VRSF DP fix DIY?

I've been trying to find a good source for this but the one e90post link that leads to it doesn't work.

There is a BMS F30 PDF for it but the lack of pictures has me confused to no end.

Any help please?
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      04-26-2017, 12:49 PM   #2
AtlasM
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Instructions are here:

http://www.e90post.com/forums/showpo...&postcount=303

This link says O2 Catsim but it is the same product as the VRSF N55 dp fix, just different name.

It doesn't mention MHD but if you have MHD you will need to go to Stage 0 map to pass emissions with the DP fix, because the other maps block the O2 sensor related codes from having a catless DP and this also blocks you from showing oxygen sensor readiness on emissions.

I drive around on a Stage 2+ MHD map and the DP fix and there are no codes.

Make sure you use the exact connectors listed. The first time I did it I used something similar but not the same and it wasn't making good contact and threw a bunch of CEL codes.

Last year when I went to buy them from the Amazon link provided in the post I linked you to, the seller never shipped them, they improperly listed them as in stock when they weren't. I got Amazon to refund the purchase and bought them from Crutchfield instead.

https://www.crutchfield.com/p_669PP6...onnectors.html
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      Yesterday, 05:24 PM   #3
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But my dp fix has five cables and they are pins/connectors :|

http://www.vr-speed.com/vrsf-catless...-bmw-335i.html
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      Yesterday, 06:03 PM   #4
AtlasM
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Quote:
Originally Posted by Diox View Post
But my dp fix has five cables and they are pins/connectors :|

http://www.vr-speed.com/vrsf-catless...-bmw-335i.html
That's for N54, not N55. When I got mine from VRSF they didn't have a separate N55 DP fix page, it was an add-on to their catless downpipe. If you contact them and say you need the N55 one they may do an exchange.
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