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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 > Favor to ask. Please post a log



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      04-16-2017, 06:39 PM   #1
TheeGovernor
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Favor to ask. Please post a log

I am trying to track down the reasons for my poor mpgs. Could someone with a n54 powered car (preferably a 335i) please post a log of their car cruising down the high way do 60-70 mph. AC off. Car must be up to temp and please use stock map. Flat ground would be nice. Making sure parameters like load and coolant temp are being recorded.
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      04-16-2017, 10:02 PM   #2
kisarci
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how many miles on the car? maybe pre cat o2s are fouled up? mine were in terrible shape and after replacing to the ntk ones, i gained about 6-7 more mpg. i was so surprised by the difference. sorry im on the mobile app and would post a log for you if i was home.
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      04-16-2017, 10:19 PM   #3
TheeGovernor
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Quote:
Originally Posted by kisarci View Post
how many miles on the car? maybe pre cat o2s are fouled up? mine were in terrible shape and after replacing to the ntk ones, i gained about 6-7 more mpg. i was so surprised by the difference. sorry im on the mobile app and would post a log for you if i was home.
Its possible, but they are relatively new. And I have no codes. Did you have codes when you replaced yours?
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      04-17-2017, 07:05 PM   #4
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i had no codes. i didnt even think about replacing them until i looked at them when i changed my dp's.
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      04-17-2017, 07:23 PM   #5
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I am going to replace them. If you get a chance please take a log and post it up.
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      04-19-2017, 04:51 PM   #6
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I'll post Tom if no one does by then ill bring my tablet to work in am
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      Yesterday, 01:03 PM   #7
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http://datazap.me/u/robby37/60-70-mp...og=0&data=3-22
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