Installed ESS TVS2 SUPERCHARGER problems after flash tune - Bimmerfest - BMW Forums



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E63 / E64 6 Series (2004 - 2010)
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Old 08-25-2019, 01:58 AM
Jberg6r.1.9 Jberg6r.1.9 is offline
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Installed ESS TVS2 SUPERCHARGER problems after flash tune

New fault codes after flash tune. unable to communicate or start, it cranks but does not start. (Only able to start when maf and ecu being bypassed and car runs great on cam and crank position.

Iím wondering if the ecu went bad (doubt it) or if Iím having voltage / or what another member @superchargede60 discovered with the supercharger inter coolers water pump being on same circuit as the fuel pump and overloading the circuit but I am Troubled as to the codes showing up after install of tune.

Tried reflashing back to stock and unable to or problem remains.

I feel As if weíre close to completing this project just few more hurdles. hope someone here has some insight into the electrical system of the 6íer and wiring diagram.

All codes are in the attachment.
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Last edited by Jberg6r.1.9; 08-25-2019 at 01:59 AM. Reason: Spelling error
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Old 08-25-2019, 11:19 AM
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Hsurf Hsurf is offline
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They're all activation codes so the DME isn't sending those items any signals by the looks of things. That's a big install and on these cars that wiring is going to be pretty brittle by now given the heat it's expected to cope with, given how much it would have been shifted about I'd check the continuity of the wiring from the DME first, it'll be a pain but you need to be sure the signals can actually get from the DME to it's destination.
Nice work so far by the way .
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Old 08-25-2019, 12:38 PM
Jberg6r.1.9 Jberg6r.1.9 is offline
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Thanks Neil, appreciate the feedback, I will have mech recheck The wires and the integrity. Probably wires got crimped in the process of putting everything back in its place. Also another symptom I forgot To mention the car shuts off or stalls when at a stop Light or stop sign after short test drives. Is able to start right up after stall.
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Old 08-25-2019, 01:08 PM
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Hsurf Hsurf is offline
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That may just be a symptom of the DME and MAF disconnected, when the revs suddenly drop it's not compensating quickly enough on the fuel/air mixture, just a guess, you first need to know that the signals can get to where they need to go, once that's done you can start looking at specific items that can cause this if it continues to do the same.
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Old 08-25-2019, 07:30 PM
HerbP HerbP is offline
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My guess is that something is not allowing the Vanos solenoids to work properly, causing timing issues. As Neil stated the wiring becomes very brittle over time. Check the wiring to all 4 solenoids to verify they are receiving the proper voltage at each of the 2 connector pins. With the key on, one side will get 2.84 volts, & the other side should be around 12 volts. If you have ISTA you can check to see if the Vanos system is working properly? I would also maybe do a smoke test to see if you could also be sucking a lot of unmetered air, this would also confirm if the purge valve is allowing any air in the system. There is only one other member that installed the ESS Turbo, & he did not get very much help from them in finding the problem. Remember when you get things working properly, is not to pull more boost than is designed, since your bottom end is not built to match your SC.
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