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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 > Welcome to your N54 Car Master issue List. WIP (sticky?)



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      12-15-2014, 08:04 PM   #1
332ijunkie
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Welcome to your N54 Car Master issue List. WIP (sticky?)

Something Ive been collecting over the years after working on these things plenty. A work in progress
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File Type: pdf N54 Service List.pdf (39.9 KB, 1108 views)
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      12-15-2014, 08:49 PM   #2
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Very nice summary of VERY common FAQ's here. Well done!

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      12-15-2014, 09:49 PM   #3
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Very thorough and well worded. This is a must for any newb
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      12-15-2014, 09:59 PM   #4
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Very Nice information collection!
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      12-15-2014, 10:04 PM   #5
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Should be a must read for anyone who doesn't know about these cars
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      12-16-2014, 09:03 AM   #6
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Thanks! I will continually be updating it as i remember stuff and as more new exciting stuff comes in!

This should cover about 50% of the posts on this forum lol
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      12-16-2014, 09:45 AM   #7
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awesome writeup!
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      12-16-2014, 09:54 AM   #8
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nice job
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      12-16-2014, 03:33 PM   #9
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Yeah thanks and I didn't know that about the IBS and battery "When itís starting to fail the IBS system will decouple the battery after
you shut the car off thus turning the water pump off after the car shuts down that acts as a Ďturbo
timerí to cool the turbos down after shutdown."

I still have my original battery from '07
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      12-16-2014, 05:17 PM   #10
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Nice work man - Surprizingly I did most of this to my car, might wanna add Pressure Converter swap out to this, or maybe its already there
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      12-16-2014, 06:36 PM   #11
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Thanks for the write up!
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      12-16-2014, 07:11 PM   #12
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Great maintenance guide especially for guys getting close to the 100k mark.

Not sure the part about the ECU not being fully mapped out for tuning though.

There are tables that haven't been mapped but from a tuning perspective I think everything required for big power is there.

There's really no need for people to use anything other than modified ECU code to push the limits of their car.
Any properly tuned car will have smooth consistent power without throttle closures or timing drops, it's just people that are using generic maps not customised for their car that suffer those problems.
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      12-16-2014, 07:56 PM   #13
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Quote:
Originally Posted by CarAbuser
Great maintenance guide especially for guys getting close to the 100k mark.

Not sure the part about the ECU not being fully mapped out for tuning though.

There are tables that haven't been mapped but from a tuning perspective I think everything required for big power is there.

There's really no need for people to use anything other than modified ECU code to push the limits of their car.
Any properly tuned car will have smooth consistent power without throttle closures or timing drops, it's just people that are using generic maps not customised for their car that suffer those problems.
Have you looked at Terry's ST thread? He has gone as far as putting resistors on the factory knock sensors and still has shadow knock and timing pulls on his ST 135i. He blatantly said, he's parking it till someone finds the knock tables.......
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      12-16-2014, 08:12 PM   #14
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sticky this
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      12-17-2014, 04:08 AM   #15
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Quote:
Originally Posted by 332ijunkie
Quote:
Originally Posted by CarAbuser
Great maintenance guide especially for guys getting close to the 100k mark.

Not sure the part about the ECU not being fully mapped out for tuning though.

There are tables that haven't been mapped but from a tuning perspective I think everything required for big power is there.

There's really no need for people to use anything other than modified ECU code to push the limits of their car.
Any properly tuned car will have smooth consistent power without throttle closures or timing drops, it's just people that are using generic maps not customised for their car that suffer those problems.
Have you looked at Terry's ST thread? He has gone as far as putting resistors on the factory knock sensors and still has shadow knock and timing pulls on his ST 135i. He blatantly said, he's parking it till someone finds the knock tables.......
That's piggyback tuning. Nothing to do with the ECU tables.
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      12-18-2014, 08:07 AM   #16
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Hitting the 100k will mean lots of work to be done
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      12-18-2014, 12:34 PM   #17
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Wow, this is a fantastic top-level list. It is a must-read for anyone just entering the 335i tuning scene from elsewhere.

I have one recommendation: Define all your acronyms/initialisms the first time they're used. There will always be newbies out there who do not know what they stand for, and searching for acronyms is not always the easiest task. I was in such a situation when I joined the tuning scene!
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      12-18-2014, 12:50 PM   #18
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+1 on sticky.
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      12-18-2014, 10:50 PM   #19
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Quote:
Originally Posted by CarAbuser View Post
That's piggyback tuning. Nothing to do with the ECU tables.
Terry Flashes on top of the JB4. Has everything to do with ECU tables...

also
Cough... MAP sensor Voltage/Pressure table... Cough
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      12-19-2014, 07:47 AM   #20
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Quote:
Originally Posted by 332ijunkie
Quote:
Originally Posted by CarAbuser View Post
That's piggyback tuning. Nothing to do with the ECU tables.
Terry Flashes on top of the JB4. Has everything to do with ECU tables...

also
Cough... MAP sensor Voltage/Pressure table... Cough
Still don't know what that has to do with ECU tuning being flawed.

The document states that ECU tuning is non ideal becuase you will suffer from throttle closures and timing flatlines. That's not true on a properly tuned car.
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      12-21-2014, 11:15 PM   #21
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awesome write up, should be stickied. it's rather depressing going down that list having gone through most of those. need to get the water pump/tstat next
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      12-21-2014, 11:43 PM   #22
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Nice list!! Saved for future use!
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