Is this caused by the JB3???

morph335i · 12-04-2010, 12:16 PM

1. Driving around 65-70 mph on the highway if I pressed the pedal to the floor the power from the jb3 was there but around 100mph the car would go into limp mode and the "engine malfunction reduced power" > light comes on I pull over turn off the car for 5 min and turn it on the > warning isn't there and the car seems to be running fine....2 weeks go by and > everything seems ok then it happens again n continues to happen every time I press the pedal to the floor. 2. I decide to recheck all the wires from the jb3 > everything is ok and all wires are connected by the tape, i keep the jb3 installed but set it at map 0 and hope for the best...later that week I'm at a stop light and the car begins car begins to shake n the revs are dropping and rising on there own so I pull in and I restart the car and it's still > shaking but now coming from the engine bay is a knocking sound and I get the following malfunctions Malfunction in transmission> > >> >> > Engine malfunction reduced power> > >> >> > At this point my only choice is to disconnect the jb3 and > reset the ecu, after returning the car back to stock the same codes are still there and the car has even less power than it did when the "Engine malfunction reduced power" light was on.... I only have 1 month of bmw warrantee left but I'm scared to take it in and even more scared to drive the car...i emailed terry the codes and he was as helpful as he possibly could be but i am afraid during the "un-install" i messed up one of the wires that have the same colors....
does anyone have close up pictures of the original bmw ecu before installing the JB3 or can tell me exactly what is written on the following wires i know its in the DYI section at n54techs but i need to kno exactly how to tell the difference between the colors for example
JB3 orange: slot 6 (oxygen sensor 1, yellow/white wire with 525 stamped on insulation)
so i need help with these wires.....

Large black subconnector:
JB3 yellow: slot 10 (boost, yellow wire)
JB3 white: slot 29 (crank position, yellow wire)
White subconnector:
JB3 gray: slot 9 (fuel pressure, yellow/red wire, connect on all models)
Small black subconnector:
JB3 blue: slot 7 (oxygen sensor 2, yellow/white wire)
Grey subconnector:
JB3 dark red: slot 7 (throttle position, yellow/white wire. May be blue/white on 535)

Forcefed3 · 12-04-2010, 12:20 PM

What octane gas are you using? What was your oil temp? What map were you running? Are you having long starts?

These are things we need to know.

Proper Motion LLC · 12-04-2010, 01:44 PM

I'm gonna bet it's your HPFP

jmkworld · 12-04-2010, 01:52 PM

do you have an 2011 n55 stage 1. Similar problem that i just had with the jb3! I was driving home from AC half cel engine malfunction power reduced. pulled over got gas it went away. next day same thing. Went to Helix to get the codes read came up with 7 codes! 2 were tune related 5 weren't. so we took the jb3 off and i have been driving without it for a week. Going to see if there were any codes tomorrow with the car being stock. if not we will update the firmware and try again with the jb3! i'll let you know tomorrow how it goes

morph335i · 12-04-2010, 02:11 PM

Quote:

Originally Posted by gbreeE90

What octane gas are you using? What was your oil temp? What map were you running? Are you having long starts?

These are things we need to know.

91 octane
oil temp was normal
map 3
the jb3 is off...i tried retracing the steps using the JB3 pin out installation video but it is difficult because they dont say the differences between wire colors by what is printed on there.... but i need help with the wires that i mentioned before....thank you

shockin330i · 12-04-2010, 03:23 PM

Quote:

Originally Posted by jmkworld

do you have an 2011 n55 stage 1. Similar problem that i just had with the jb3! I was driving home from AC half cel engine malfunction power reduced. pulled over got gas it went away. next day same thing. Went to Helix to get the codes read came up with 7 codes! 2 were tune related 5 weren't. so we took the jb3 off and i have been driving without it for a week. Going to see if there were any codes tomorrow with the car being stock. if not we will update the firmware and try again with the jb3! i'll let you know tomorrow how it goes

Did you install the tune right?

morph335i · 12-04-2010, 05:42 PM

yes i installed the tune right and it was running perfectly for the first 3k miles after i took it off all these problems began to happen...i just finished rechecking all the wires and everything seems to fine i cleared all the codes started the car...drove about 10 min with no problems and boom the "engine malfunction reduced power" came back but the rest of the codes are gone...im taking it in to the dealer on monday morning....any suggestions of what to do between now and monday also what should i tell them happened??? I dont want to get voided....

thanx guys....

shockin330i · 12-04-2010, 05:44 PM

sounds like a hpfp

J BONE · 12-04-2010, 05:56 PM

That is what happened to mine. Didn't have JB3 but car was flashed. HPFP failure for me

Forcefed3 · 12-04-2010, 06:30 PM

Quote:

Originally Posted by morph335i

91 octane
oil temp was normal
map 3
the jb3 is off...i tried retracing the steps using the JB3 pin out installation video but it is difficult because they dont say the differences between wire colors by what is printed on there.... but i need help with the wires that i mentioned before....thank you

Sounds like HPFP to me

M3 Eater · 12-04-2010, 06:52 PM

sounds like vanos to me.... any camshaft codes?? Then HPFP is the next guess...

lawwailok · 12-04-2010, 10:36 PM

my guess, bad injectors?

morph335i · 12-05-2010, 06:10 AM

i got a crankshaft code...i cleared all codes again and car starts up fine and drives fine untill i enter the on ramp of the freeway and the engine malfunction reduced power comes on but that was the only one that came back...when i turn off the car the warning goes away only when i actually press down on thr gas this warning comes on....

techlogik · 12-05-2010, 09:09 AM

I'm going to go with the same response when this has been brought up in 100 different threads....

HPFP, injectors, spark plugs or coil packs...

This of course after you have done the typical troubleshooting steps for a piggyback.

Mike@N54Tuning.com · 12-05-2010, 09:09 AM

Quote:

Originally Posted by morph335i

yes i installed the tune right and it was running perfectly for the first 3k miles after i took it off all these problems began to happen...i just finished rechecking all the wires and everything seems to fine i cleared all the codes started the car...drove about 10 min with no problems and boom the "engine malfunction reduced power" came back but the rest of the codes are gone...im taking it in to the dealer on monday morning....any suggestions of what to do between now and monday also what should i tell them happened??? I dont want to get voided....

thanx guys....

Best thing to do is remove all mods, clear codes, then let the problem codes come back up on their own stock before taking it in.

Mike

Loco Goose · 12-05-2010, 09:15 AM

Quote:

Originally Posted by Rysandro

I'm gonna bet it's your HPFP

Quote:

Originally Posted by shockin330i

sounds like a hpfp

Quote:

Originally Posted by J BONE

That is what happened to mine. Didn't have JB3 but car was flashed. HPFP failure for me

Quote:

Originally Posted by gbreeE90

Sounds like HPFP to me

Quote:

Originally Posted by M3 Eater

sounds like vanos to me.... any camshaft codes?? Then HPFP is the next guess...

Quote:

Originally Posted by techlogik

I'm going to go with the same response when this has been brought up in 100 different threads....

HPFP, injectors, spark plugs or coil packs...

This of course after you have done the typical troubleshooting steps for a piggyback.

I'm going to guess the same

shockin330i · 12-05-2010, 09:36 AM

Quote:

Originally Posted by Loco Goose

I'm going to guess the same

Lol, you're loco..

e93ro · 12-05-2010, 11:42 AM

had the same problem, took me a lot of time and money (changed hpfp for no reason, knock sensors, sparks, coils, aso ) and it was for DPFix v3, if you are using it, just give a try without it, leave alone the SES light that might come up

iBoost · 12-05-2010, 12:21 PM

Sounds like hpfp is crapping out. Remove all your mods, clear your codes, and take it in.

morph335i · 12-09-2010, 05:30 AM

HPFP!!!! hahaha you guys were right!!!! BMW replaced it and I just got it back today....its good to go!!!

Thank you everyone for all the help!!!

M3 Eater · 12-14-2010, 06:46 PM

HMMM what about that crank shaft code... that has vanos written all over it still. Glad to hear the car is running strong again. Keep an eye on it, don't be surprise if it pops up.

12-04-2010, 12:16 PM	#1
morph335i Private 5 Rep 78 Posts Drives: white 335i coupe Join Date: Sep 2010 Location: L.A. iTrader: (0)	Is this caused by the JB3??? 1. Driving around 65-70 mph on the highway if I pressed the pedal to the floor the power from the jb3 was there but around 100mph the car would go into limp mode and the "engine malfunction reduced power" > light comes on I pull over turn off the car for 5 min and turn it on the > warning isn't there and the car seems to be running fine....2 weeks go by and > everything seems ok then it happens again n continues to happen every time I press the pedal to the floor. 2. I decide to recheck all the wires from the jb3 > everything is ok and all wires are connected by the tape, i keep the jb3 installed but set it at map 0 and hope for the best...later that week I'm at a stop light and the car begins car begins to shake n the revs are dropping and rising on there own so I pull in and I restart the car and it's still > shaking but now coming from the engine bay is a knocking sound and I get the following malfunctions Malfunction in transmission> > >> >> > Engine malfunction reduced power> > >> >> > At this point my only choice is to disconnect the jb3 and > reset the ecu, after returning the car back to stock the same codes are still there and the car has even less power than it did when the "Engine malfunction reduced power" light was on.... I only have 1 month of bmw warrantee left but I'm scared to take it in and even more scared to drive the car...i emailed terry the codes and he was as helpful as he possibly could be but i am afraid during the "un-install" i messed up one of the wires that have the same colors.... does anyone have close up pictures of the original bmw ecu before installing the JB3 or can tell me exactly what is written on the following wires i know its in the DYI section at n54techs but i need to kno exactly how to tell the difference between the colors for example JB3 orange: slot 6 (oxygen sensor 1, yellow/white wire with 525 stamped on insulation) so i need help with these wires..... Large black subconnector: JB3 yellow: slot 10 (boost, yellow wire) JB3 white: slot 29 (crank position, yellow wire) White subconnector: JB3 gray: slot 9 (fuel pressure, yellow/red wire, connect on all models) Small black subconnector: JB3 blue: slot 7 (oxygen sensor 2, yellow/white wire) Grey subconnector: JB3 dark red: slot 7 (throttle position, yellow/white wire. May be blue/white on 535)
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12-04-2010, 12:20 PM	#2
Forcefed3 Banned 127 Rep 4,732 Posts Drives: 2008 335i Join Date: May 2010 Location: South iTrader: (2) Garage List 2008 335i [1.00]	What octane gas are you using? What was your oil temp? What map were you running? Are you having long starts? These are things we need to know.
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12-04-2010, 01:44 PM	#3
Proper Motion LLC Custom Powder Coater 147 Rep 2,784 Posts Drives: White 335i Sedan Join Date: Dec 2008 Location: Orange County CA iTrader: (2)	I'm gonna bet it's your HPFP __________________ www.propermotion714.com
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12-04-2010, 01:52 PM	#4
jmkworld Captain 54 Rep 627 Posts Drives: 2013 x3 Join Date: Sep 2010 Location: Boston iTrader: (3)	do you have an 2011 n55 stage 1. Similar problem that i just had with the jb3! I was driving home from AC half cel engine malfunction power reduced. pulled over got gas it went away. next day same thing. Went to Helix to get the codes read came up with 7 codes! 2 were tune related 5 weren't. so we took the jb3 off and i have been driving without it for a week. Going to see if there were any codes tomorrow with the car being stock. if not we will update the firmware and try again with the jb3! i'll let you know tomorrow how it goes
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12-04-2010, 05:42 PM	#7
morph335i Private 5 Rep 78 Posts Drives: white 335i coupe Join Date: Sep 2010 Location: L.A. iTrader: (0)	yes i installed the tune right and it was running perfectly for the first 3k miles after i took it off all these problems began to happen...i just finished rechecking all the wires and everything seems to fine i cleared all the codes started the car...drove about 10 min with no problems and boom the "engine malfunction reduced power" came back but the rest of the codes are gone...im taking it in to the dealer on monday morning....any suggestions of what to do between now and monday also what should i tell them happened??? I dont want to get voided....thanx guys....
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12-04-2010, 05:44 PM	#8
shockin330i Brigadier General 798 Rep 4,784 Posts Drives: 2016 ZCP M3 Join Date: Jan 2007 Location: f y'all, I'm from Texas (RGV) iTrader: (1)	sounds like a hpfp __________________ ERnie 2016 BSM/f80/ZCP
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12-04-2010, 05:56 PM	#9
J BONE The Boss 110 Rep 4,948 Posts Drives: %E2%80%9816 F15 X6 Join Date: Nov 2007 Location: Illinois iTrader: (12) Garage List 2008 E92 335xi [9.00]	That is what happened to mine. Didn't have JB3 but car was flashed. HPFP failure for me
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12-04-2010, 06:52 PM	#11
M3 Eater Major 36 Rep 1,054 Posts Drives: 335i Sedan Join Date: May 2010 Location: Unknown iTrader: (3) Garage List 2007 335i [0.00]	sounds like vanos to me.... any camshaft codes?? Then HPFP is the next guess... __________________ JB4 beta 15 ohms FSB,AEM inline filter/ CM 10, ETS fmic, ER custom made charge pipe,TSW Donnington 18's,Simitumo HTRZ3, Injen DCI, AR DPs, Forge DVs, AA SLD, Koni FSD, ZSP springs.
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12-04-2010, 10:36 PM	#12
lawwailok Lieutenant Colonel 146 Rep 1,922 Posts Drives: E90 335i, E70 X5 Join Date: Aug 2009 Location: Sacramento, CA iTrader: (18) Garage List 2007 E90 335i [8.00] 2009 E70 xDrive30i [0.00]	my guess, bad injectors? __________________ -eric E90 335i TiAg STOCK see my garage for mod list.. E70 X5 SGM try to stay stock :/
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12-05-2010, 06:10 AM	#13
morph335i Private 5 Rep 78 Posts Drives: white 335i coupe Join Date: Sep 2010 Location: L.A. iTrader: (0)	i got a crankshaft code...i cleared all codes again and car starts up fine and drives fine untill i enter the on ramp of the freeway and the engine malfunction reduced power comes on but that was the only one that came back...when i turn off the car the warning goes away only when i actually press down on thr gas this warning comes on....
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12-05-2010, 09:09 AM	#14
techlogik Lieutenant Colonel 70 Rep 1,565 Posts Drives: 2020 M340i Dravit Grey Join Date: Dec 2006 Location: FL iTrader: (2)	I'm going to go with the same response when this has been brought up in 100 different threads.... HPFP, injectors, spark plugs or coil packs... This of course after you have done the typical troubleshooting steps for a piggyback. __________________ 2020 M340i: Dravit Grey Mettalic. Loaded.
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12-05-2010, 11:42 AM	#18
e93ro Private 8 Rep 83 Posts Drives: 335i E93 Join Date: May 2010 Location: Europe iTrader: (0)	had the same problem, took me a lot of time and money (changed hpfp for no reason, knock sensors, sparks, coils, aso ) and it was for DPFix v3, if you are using it, just give a try without it, leave alone the SES light that might come up __________________ Procede V5, AMS FMIC, AR c-less DPs & Borla exhaust, DCI, CDV, STETT Charge Pipe+BOV, KW CoilOvers, CMGS Meth kit CM10, AR additional oil cooler, Quaife LSD, TD stage 1 turbo upgrade, RIX Gauge, ACT street clutch
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12-05-2010, 12:21 PM	#19
iBoost Retired e90post Member 135 Rep 3,038 Posts Drives: real slow Join Date: Nov 2009 Location: Las Vegas iTrader: (13)	Sounds like hpfp is crapping out. Remove all your mods, clear your codes, and take it in.
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12-09-2010, 05:30 AM	#20
morph335i Private 5 Rep 78 Posts Drives: white 335i coupe Join Date: Sep 2010 Location: L.A. iTrader: (0)	HPFP!!!! hahaha you guys were right!!!! BMW replaced it and I just got it back today....its good to go!!! Thank you everyone for all the help!!!
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12-14-2010, 06:46 PM	#21
M3 Eater Major 36 Rep 1,054 Posts Drives: 335i Sedan Join Date: May 2010 Location: Unknown iTrader: (3) Garage List 2007 335i [0.00]	HMMM what about that crank shaft code... that has vanos written all over it still. Glad to hear the car is running strong again. Keep an eye on it, don't be surprise if it pops up. __________________ JB4 beta 15 ohms FSB,AEM inline filter/ CM 10, ETS fmic, ER custom made charge pipe,TSW Donnington 18's,Simitumo HTRZ3, Injen DCI, AR DPs, Forge DVs, AA SLD, Koni FSD, ZSP springs.
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