|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
N55 JB4 Stage 2 ISO water pump staying on fix
|
|
10-19-2013, 11:48 PM | #1 |
...
27
Rep 193
Posts
Drives: SG '24 M3CX
Join Date: Feb 2010
Location: Toronto
|
N55 JB4 Stage 2 ISO water pump staying on fix
Hey guys, I just posted this on another forum:
After almost 7 flawless months of running the ISO software on my N55 I experienced the dreaded water pump issue. I was stranded 3 separate times over a few days due to a dead battery. At first I thought it was just a fluke but quickly realized it was the running water pump that was draining the battery. I exchanged many emails with Terry and Jon regarding the bug. I had a hard time believing it was random as I've run the ISO for so long without issue. The only change to my setup was the addition of my Oil Catch Can a month earlier. Terry got back to me and informed me he was working on the issue and devised the work around for a switched power connection. Terry forwarded me the work around instruction, so off to the garage I headed tools in hand. Well low and behold, with the hood up, side cutters in hand, the pump starts to run. I was able to turn the pump on and off by unplugging and plugging the blue wired solenoid connection (nothing new). However I was also able to turn the pump on and off by re-connecting the heater wire to the PCV assembly (removed with OCC installation). I was able to do this many times as seen in the video: http://youtu.be/fxulhhNM3Q4 I've now gone 3 days without the water pump staying on. I mentioned this to a few other members and all seems to be working well for everyone. I have no idea as to how hot the heater element inside the PCV assembly runs so I've zip tied it securely free from contact to another hose. Maybe the common denominator between N55's with the pump issue and N55's without is the fact that the heater wire to the PCV assembly is disconnected. I hope this works for anyone with the pump issue like it's currently working for me! **Update** Over a year later, Still running perfect, no drained battery! Last edited by AGO 530; 02-27-2015 at 07:02 AM.. Reason: Update |
10-20-2013, 02:34 AM | #2 |
Captain
44
Rep 696
Posts
Drives: 2012 E70 X5
Join Date: Aug 2013
Location: Lancaster, Pa
|
great work
__________________
2011 BSM 335i E90 MTECH 6MT JB4 stage 2 iso 5.3 FF wire BMS Intake Vishnu DP Cyba Scoops LUX V4 6000K Headlight/Fog light Philips Ultinon Euro headlight switch ACS roof wing 35% tint Performance Grilles Misc coding Cobb charge pipe ///M3 fenders 335is pedals BC Coilovers Vrsf 7" IC ///M3 mirrors
|
Appreciate
0
|
10-20-2013, 07:45 AM | #4 |
...
27
Rep 193
Posts
Drives: SG '24 M3CX
Join Date: Feb 2010
Location: Toronto
|
This is after one month.
__________________
SOLD Mineral White '17 M3 Comp / Dinan S2 / FBO
SOLD AW '15 435i F36 Msport / EUROCHARGED TUNED, STAGE 2 / FBO SOLD AW '11 335i E90 MSport FBO |
Appreciate
0
|
11-22-2013, 10:37 AM | #5 |
Private
6
Rep 53
Posts |
Im currently facing the same issue with my F13 640i, I dont have an oil catch can installed. I tried alternating the power source and it didnt work for me. Do you have an idea why is this happening? Is it because of the "iso" option selected under the settings tab on the jb interface? And lastly, is it the heater wire problem?
|
Appreciate
0
|
11-22-2013, 01:11 PM | #6 |
New Member
0
Rep 19
Posts |
I finally converted my JB4 to ISO a little over a week ago. I went out last night 3 hours after I got home from work to upgrade to ISO 5.1 and my battery was dead.
I do not have any other mods besides the JB4! I resoldered the diode and flashed back to non-ISO. |
Appreciate
0
|
01-02-2014, 11:50 PM | #7 |
Major
49
Rep 1,072
Posts
Drives: 12' 135i
Join Date: Feb 2011
Location: San Jose, California
|
you have any updates? still having issues or have done anything to fix?
__________________
Matthew Gallop: '12 N55 Mods: JB4 Flex ISO | iCarbon DP | VRSF 5" FMIC | BMS Intake | ER Charge Pipe | Race Axleback | ST Coils | Alufelgen CS7's | iCarbon 3 fin Diffuser | Blackline LCI | CarbonFiber Spoiler | Orion v4 AE's | 30% tint | red+blk roundels | Cyba Scoops | H-Style front Lip | WeissLicht LED Smoked Sidemarkers | Matte Grills | Coded | |
Appreciate
0
|
01-03-2014, 02:04 PM | #8 | |
New Member
0
Rep 19
Posts |
Quote:
I went back to ISO 5.1 and haven't had any problems. |
|
Appreciate
0
|
12-10-2014, 09:49 PM | #9 |
Private
8
Rep 51
Posts |
I as well was having the water pump issue and connected the heater wire and it was resolved......VERY WEIRD I have been looking at the N55 wiring diagrams for an hour trying to see how they could possibly be related
|
Appreciate
1
|
09-02-2015, 12:31 PM | #10 |
Second Lieutenant
26
Rep 228
Posts |
same issue
So i have the same issue and this solution works for me. but the question is, is this safe? Will the pump run normally when it actually needs to run to cool the turbo down? I might be wrong about the use of this sensor, but when I installed the OCC, I thought it was very odd to leave that cable just hanging. Now this happens. So is it safe to just plug it to an empty heater hose sensor?? Just worried bout the turbo nos cooling down properly when it actually needs to be cooled down. any help is appreciated.
|
Appreciate
0
|
09-08-2016, 10:45 AM | #11 |
Private
8
Rep 51
Posts |
It is electronic so it runs off off a thermostat and when the car is running. I also believe it is variable based on the jump in temp. I was running it for half a year with no issues. Set JB4 to read your coolant temp and keep an eye on it if you are that worried.
|
Appreciate
0
|
Bookmarks |
Tags |
dead battery, iso, jb4, n55, water pump |
|
|