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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 > My 335 step hitting the rev limiter!



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      10-07-2008, 12:18 AM   #1
muvaside
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My 335 step hitting the rev limiter!

YES , an automatic hitting the rev limiter ! Happened to me twice already in sport mode shifting from first to second . Now for my mods - JB3 , BMC drop in filter and just this last week I started mixing 91 and 100 octane . I fill 6.5 gallons 100 and 5 gallons 91 .I tell you , high octane made a realy big difference on my car .If you can afford it,highly recomend it ! It pulls like a freight train .
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      10-07-2008, 12:27 AM   #2
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Are you bouncing off the rev limiter? The computer instantly shifts once i hit redline. If its not shifting and its bouncing off the limiter i'd take it in asap.
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      10-07-2008, 12:37 AM   #3
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Quote:
Originally Posted by l4wr3nc3 View Post
Are you bouncing off the rev limiter? The computer instantly shifts once i hit redline. If its not shifting and its bouncing off the limiter i'd take it in asap.
No , I wouldn't say bouncing but hitting the rev limiter . It did it after I started using higher octane . The Rpm races thru first gear so fast now , it peels out thru first into almost all of second ! First time it did it , I thought that the DTC was still on which it wasn't .
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      10-07-2008, 01:29 AM   #4
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i've had this happen if i don't have traction in my old 328ci. I think it's normal as the computer doesn't shift if you don't have traction even close to redline...actually i think i've had this happen with procede v1.47 as well
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      10-07-2008, 01:45 AM   #5
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you don't need to bring it in. It's the JB3 map. Terry needs to adjust the max. rpm . Just email him
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      10-07-2008, 01:52 AM   #6
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Its happened to me on SSTT and JB2 as well. I think the tranny computer gets confused about shifts when traction is lost and RPM's shoot up. You can get the same effect with a fully stock engine with all traction controls off, burning out in water, for instance.
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      10-07-2008, 02:03 AM   #7
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This happened to me also when I got JB3, dtc is on, and i was in ds, it bounced off the limiter once than shifted...
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      10-07-2008, 09:09 AM   #8
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Quote:
Originally Posted by sambonator View Post
Its happened to me on SSTT and JB2 as well. I think the tranny computer gets confused about shifts when traction is lost and RPM's shoot up. You can get the same effect with a fully stock engine with all traction controls off, burning out in water, for instance.
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      10-07-2008, 11:08 AM   #9
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I think i've had this once or twice w/ DTC on.
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