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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > V2 problem??



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      12-18-2007, 08:53 PM   #1
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V2 problem??

I went on a drive after install and my boost is at 7.6 at idle. when I step on the gass the boost lowers to like -.09 What the heck did I do wrong?? Oh, and no codes?
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      12-18-2007, 08:58 PM   #2
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Did u place the old boost solenoid back to stock?
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      12-18-2007, 09:00 PM   #3
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Yep, had it in for service today, so I had it back to normal before install
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      12-18-2007, 09:21 PM   #4
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Solved, kinda... Had a wire come off (cold and electrical tape don't mix)... New problem CODE says engine malfunction Reduced power?? check all six ecu conections, they look good, so i went a block a hit the gas Boost shot to 16.7 so I turned around. What the heck is going on?? 1.47 was so easy to install....
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      12-18-2007, 09:25 PM   #5
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You should not even be seeing 16.7 boost spikes from what i heard Shiv stated...My boost peaks at 14.9 to 15 the most and thats at 3-4 gear at around 5500 rpms..
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      12-18-2007, 09:28 PM   #6
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right, well I did and before that it gave me that code... Something is wrong somewhere... I just don't know where.
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      12-18-2007, 09:31 PM   #7
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The car is running fine?? Is it still giving you any codes?
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      12-18-2007, 09:32 PM   #8
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It's got the engine malfunction Reduced power code, I have a C reader, never used it though where does it hook up?
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      12-18-2007, 09:35 PM   #9
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Quote:
Originally Posted by SGP335i View Post
Solved, kinda... Had a wire come off (cold and electrical tape don't mix)... New problem CODE says engine malfunction Reduced power?? check all six ecu conections, they look good, so i went a block a hit the gas Boost shot to 16.7 so I turned around. What the heck is going on?? 1.47 was so easy to install....
Two things:

1) Makes sure you installed the new green loom that came with the v2 upgrade
2) Since you had an open circuit on one of the signals, you threw a code (as you mentioned). No biggie. Just unplug your battery for 30 min and re-test your car. Your code should be gone and your boost should be back to normal.

Shiv
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      12-18-2007, 09:37 PM   #10
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green loom is in I'll try the unplug THANKS SO MUCH SHIV!!!
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      12-18-2007, 09:40 PM   #11
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Driver side panel inside of the car near where your left knee...You will see a cover i think says OBDII or something...Plug it in then turn on the ignition button twice but don't start the car, just press the button twice....I think you have wired something wrong...I would go back and check it again...Remember that with this install it requires us to connect stuff to the Procede connectors...I mess that part up too...You have to be careful and get a flashlight to look at the numbers because they are very very small and mistakes can happen!!!
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      12-18-2007, 09:41 PM   #12
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If he can't help u than no one can!!!!
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      12-18-2007, 09:42 PM   #13
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Oh and I ment to ask how do I pull up the boost graphs with the procede software?
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      12-18-2007, 09:44 PM   #14
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did you datalog them? you have hit start datalog and end datalog to make a file, once you have made a file and saved it, then you can view file under datalog to see your boost/rpm/whatever files.
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      12-18-2007, 09:44 PM   #15
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Quote:
Originally Posted by cn555ic View Post
Driver side panel inside of the car near where your left knee...You will see a cover i think says OBDII or something...Plug it in then turn on the ignition button twice but don't start the car, just press the button twice....I think you have wired something wrong...I would go back and check it again...Remember that with this install it requires us to connect stuff to the Procede connectors...I mess that part up too...You have to be careful and get a flashlight to look at the numbers because they are very very small and mistakes can happen!!!
Yeah I definately double checked it, im thinking it may be the open circuit, but I don't know. The car did feal kinda weak when I did the last run
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      12-18-2007, 09:45 PM   #16
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did you datalog them? you have hit start datalog and end datalog to make a file, once you have made a file and saved it, then you can view file under datalog to see your boost/rpm/whatever files.
next run I will log them thanks
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      12-18-2007, 11:06 PM   #17
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MUCH BETTER, thanks Shiv... I'm still trying to figure out how to pull up my data logs though I did 5 and when I go to "View data log" it opens analysis 1.01 and then I try to "load data set" and I can't find the logs?? Where the heck are they...

I didn't have a wing man so I had to drive and start and stop the logs, but I only ever saw the boost get to 12.7ish??? is that normal?
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      12-18-2007, 11:11 PM   #18
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Try C:\Program Files\Procede\Pde_Reader_v2_0\data

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Originally Posted by SGP335i View Post
MUCH BETTER, thanks Shiv... I'm still trying to figure out how to pull up my data logs though I did 5 and when I go to "View data log" it opens analysis 1.01 and then I try to "load data set" and I can't find the logs?? Where the heck are they...

I didn't have a wing man so I had to drive and start and stop the logs, but I only ever saw the boost get to 12.7ish??? is that normal?
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      12-18-2007, 11:20 PM   #19
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got it trying to put the graphs up now
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      12-18-2007, 11:26 PM   #20
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I got no idea someone said to hit print screen button but that didn't work anyone? Posting Data logs?
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      12-18-2007, 11:32 PM   #21
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Well my max boost was 13.8 not 12.7 and it jumped up at that at the end from 10.0 to 13.8
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      12-18-2007, 11:45 PM   #22
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Perfectly normal.
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