OBD II Code P1146

ThomasMartin · 01-20-2008, 01:52 AM

Hey guys

Iv googled it but cant find anything, does anyone know what P1146 is?
i found P1145 Solenoid Valve Running Losses Control Circuit Electrical

Anyone wanna let me know what that means

Its the only code i got left from my "difficult" DP install can it be cause by that?

lawdude · 01-20-2008, 03:30 AM

Quote:

Originally Posted by ThomasMartin

Hey guys

Iv googled it but cant find anything, does anyone know what P1146 is?
i found P1145 Solenoid Valve Running Losses Control Circuit Electrical

Anyone wanna let me know what that means

Sure you don't have a VW/Audi or Subaru?

ThomasMartin · 01-20-2008, 03:32 AM

Quote:

Originally Posted by lawdude

Sure you don't have a VW/Audi or Subaru?

If it is an Audi its a damn good looking one

ThomasMartin · 01-20-2008, 03:49 AM

This is the only thing i can find . . .
Now what the hell does it mean

P1140 Mass or Volume Air Flow Circuit Range/Performance Problem

P1142 TPS Circuit Range/Perf. Problem (Low Input)

P1144 Mass Air Flow Sensor Open/Short To Ground

P1145 Solenoid Valve Running Losses Control Circuit Electrical

P1146 Pressure Sensor Circuit Range/Perf (High Input)

Just my luck to be the first one to get this BMW code

M&M · 01-20-2008, 05:58 AM

Pressure sensor too high is normally an overboost error. But hey, I'm just guessing here. Did you only get it once? Maybe the car will adapt to the DP's and it will disappear.

ThomasMartin · 01-20-2008, 07:20 AM

Quote:

Originally Posted by M&M

Pressure sensor too high is normally an overboost error. But hey, I'm just guessing here. Did you only get it once? Maybe the car will adapt to the DP's and it will disappear.

Hey bud

Nope cleared codes twice now and getting it again when i check.
We can chat later on MSN.

munters · 01-20-2008, 08:22 AM

Could it be the C1146?
Speed Wheel Sensor RF Circuit Open

ThomasMartin · 01-20-2008, 08:41 AM

Quote:

Originally Posted by munters

Could it be the C1146?
Speed Wheel Sensor RF Circuit Open

Dunno the C-Reader just says 1146? Where is the speed wheel sensor maybe it was damaged on the dyno?

midlife · 01-20-2008, 10:33 AM

Quote:

Originally Posted by M&M

Pressure sensor too high is normally an overboost error. But hey, I'm just guessing here. Did you only get it once? Maybe the car will adapt to the DP's and it will disappear.

hope i am not too OT:

my auterra OB2 scanner is in transit.
where do i plug this unit into? (or in other words, where is the OB2 plug in connection in our cars)?

i am a bit of a newb at this stuff
thanks

XS4 · 01-20-2008, 05:02 PM

Quote:

Originally Posted by midlife

hope i am not too OT:

my auterra OB2 scanner is in transit.
where do i plug this unit into? (or in other words, where is the OB2 plug in connection in our cars)?

i am a bit of a newb at this stuff
thanks

right below the trunk release button (which is below your dash) there is a flat access plate about 2"x3". remove this (it just clips in place) and you will see the plug behind it.
Just got an Auterra myself the other day. Pretty nice.

rideelement247 · 01-20-2008, 06:30 PM

I think that they are related to your DPs. Did you get catless DPs? If the code keeps coming up and you just installed something, it is more than likely your latest addition is causing the problems.

midlife · 01-20-2008, 09:35 PM

Quote:

Originally Posted by XS4

right below the trunk release button (which is below your dash) there is a flat access plate about 2"x3". remove this (it just clips in place) and you will see the plug behind it.
Just got an Auterra myself the other day. Pretty nice.

i have a cabrio, and am pretty sure i do not have a trunk release button
(i could be wrong though LOL).

assuming i do not have a trunk release, how else could you better describe
¨below your dash¨. is it more on the driver´s side of the car under the dash?

thanks

rideelement247 · 01-20-2008, 10:02 PM

Quote:

Originally Posted by midlife

i have a cabrio, and am pretty sure i do not have a trunk release button
(i could be wrong though LOL).

assuming i do not have a trunk release, how else could you better describe
¨below your dash¨. is it more on the driver´s side of the car under the dash?

thanks

Where the hood release "lever" is located. Next to your left leg by the door on the panel right below the knob for your headlights. Just scan from the headlight knob downwards with your eyes until you see OBD written on a type of trap door. Pop it off and it reveals the OBD II port.

midlife · 01-21-2008, 04:52 PM

Quote:

Originally Posted by XS4

...Just got an Auterra myself the other day. Pretty nice.

my auterra unit should be at my door this weekend.

what will you mainly be using your unit for?
i know this unit does alot of things, but since i have a juicebox ecu mod,
many of the features of the auterra will not be accurate.
our ecu mods fool both our ecu and unfortunately our auterra units also.
therefore, many readings like boost will not be accurate.

first plan on using my unit just for total timing advance.
then, i will try to find out what other auterra features i can still use that
are still accurate in spite of my ecu mod.

you have any ideas on this??
thanks

midlife · 01-22-2008, 10:37 AM

Quote:

Originally Posted by rideelement247

Where the hood release "lever" is located. Next to your left leg by the door on the panel right below the knob for your headlights. Just scan from the headlight knob downwards with your eyes until you see OBD written on a type of trap door. Pop it off and it reveals the OBD II port.

thanks, will look for it sometime this week.

seven_227 · 01-26-2008, 12:39 PM

I just got the same code: 1146 : ??????????????

as well as codes:
420 : Catalyst System Efficiency Below Threshold (Bank 1)
and 430 : Catalyst System Efficiency Below Threshold (Bank 2)

So can any1 chime in, Shiv perhaps??
and 1 more question for Shiv, will V2.1 map solve the DPs SES light?

jon@themshop · 01-26-2008, 12:57 PM

Quote:

Originally Posted by seven_227

I just got the same code: 1146 : ??????????????

as well as codes:
420 : Catalyst System Efficiency Below Threshold (Bank 1)
and 430 : Catalyst System Efficiency Below Threshold (Bank 2)

So can any1 chime in, Shiv perhaps??
and 1 more question for Shiv, will V2.1 map solve the DPs SES light?

420 and 430 sounds like bad cats.

ThomasMartin · 01-26-2008, 02:30 PM

Quote:

Originally Posted by jon@themshop

420 and 430 sounds like bad cats.

The code started because of my rear 02 sensors being swapped Bank 1 and Bank2, when i changed them around the code vanished, havnt gotten it since.
I still cant find what that code is but at least its gone!

420 and 430 are cat inefficiency codes, i still thank goodness have not thrown this code and i got catless DP and exhaust. I think some builds are lucky and dont throw these codes.

Did you do any work on the car lately, could they have changed the sensors around? If not your cats or sensors are messed i think

XS4 · 01-26-2008, 08:23 PM

420 and 430 cat inefficiency codes mean the ecu is not seeing enough improvement in the O2 readings after it passes thru the first set of cats, compared to the readings the O2 sensors were giving for the exhaust before it passed thru the cats. That usually means 1 of 3 things:
1) you removed the first set of cats, so of course there will be no improvement between the before & after samples.
2) your cats have not been removed, but they are not doing their job efficiently (bad cats)
3) your cats are working fine, but the O2 sensors (that test the emissions before and after the cats) are faulty.
If your downpipes are catless, 1) is the obvious answer.

seven_227 · 01-26-2008, 10:26 PM

Quote:

Originally Posted by ThomasMartin

The code started because of my rear 02 sensors being swapped Bank 1 and Bank2, when i changed them around the code vanished, havnt gotten it since.
I still cant find what that code is but at least its gone!

420 and 430 are cat inefficiency codes, i still thank goodness have not thrown this code and i got catless DP and exhaust. I think some builds are lucky and dont throw these codes.

Did you do any work on the car lately, could they have changed the sensors around? If not your cats or sensors are messed i think

I have Catless DPs installed. I didnt get any codes or SES for three days, until I disconnected the battery and reset the ECU, after doing so I got the SES and codes. No I made sure I havent changed the sensors around since I was the one installing the pipes.

But what about code 1146 ??

Serjames · 01-26-2008, 10:27 PM

trunk = bonnet old chap

01-20-2008, 01:52 AM	#1
ThomasMartin First Lieutenant 29 Rep 321 Posts Drives: BMW 335i Coupe Join Date: Jun 2007 Location: South Africa iTrader: (0)	OBD II Code P1146 Hey guys Iv googled it but cant find anything, does anyone know what P1146 is? i found P1145 Solenoid Valve Running Losses Control Circuit Electrical Anyone wanna let me know what that means Its the only code i got left from my "difficult" DP install can it be cause by that? Last edited by ThomasMartin; 01-20-2008 at 03:17 AM..
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01-20-2008, 03:49 AM	#4
ThomasMartin First Lieutenant 29 Rep 321 Posts Drives: BMW 335i Coupe Join Date: Jun 2007 Location: South Africa iTrader: (0)	This is the only thing i can find . . . Now what the hell does it mean P1140 Mass or Volume Air Flow Circuit Range/Performance Problem P1142 TPS Circuit Range/Perf. Problem (Low Input) P1144 Mass Air Flow Sensor Open/Short To Ground P1145 Solenoid Valve Running Losses Control Circuit Electrical P1146 Pressure Sensor Circuit Range/Perf (High Input) Just my luck to be the first one to get this BMW code
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01-20-2008, 05:58 AM	#5
M&M Captain 114 Rep 750 Posts Drives: Boosted Beemers! Join Date: Mar 2007 Location: Johannesburg, South Africa iTrader: (0)	Pressure sensor too high is normally an overboost error. But hey, I'm just guessing here. Did you only get it once? Maybe the car will adapt to the DP's and it will disappear.
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01-20-2008, 08:22 AM	#7
munters Captain 11 Rep 677 Posts Drives: E91 335XI AT Dakota Black M Join Date: Jun 2007 Location: Switzerland iTrader: (0)	Could it be the C1146? Speed Wheel Sensor RF Circuit Open
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01-20-2008, 06:30 PM	#11
rideelement247 Lieutenant Colonel 62 Rep 1,677 Posts Drives: 08 335i, 67 Camaro SS Join Date: May 2007 Location: South Florida iTrader: (2)	I think that they are related to your DPs. Did you get catless DPs? If the code keeps coming up and you just installed something, it is more than likely your latest addition is causing the problems. __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(e90post.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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01-26-2008, 12:39 PM	#16
seven_227 Lieutenant 65 Rep 590 Posts Drives: AW e92 335i Join Date: May 2007 Location: Dubai iTrader: (0)	I just got the same code: 1146 : ?????????????? as well as codes: 420 : Catalyst System Efficiency Below Threshold (Bank 1) and 430 : Catalyst System Efficiency Below Threshold (Bank 2) So can any1 chime in, Shiv perhaps?? and 1 more question for Shiv, will V2.1 map solve the DPs SES light? __________________
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01-26-2008, 08:23 PM	#19
XS4 slave to the dark side 30 Rep 173 Posts Drives: 2008 335i Sedan Join Date: Jul 2007 Location: FL iTrader: (3)	420 and 430 cat inefficiency codes mean the ecu is not seeing enough improvement in the O2 readings after it passes thru the first set of cats, compared to the readings the O2 sensors were giving for the exhaust before it passed thru the cats. That usually means 1 of 3 things: 1) you removed the first set of cats, so of course there will be no improvement between the before & after samples. 2) your cats have not been removed, but they are not doing their job efficiently (bad cats) 3) your cats are working fine, but the O2 sensors (that test the emissions before and after the cats) are faulty. If your downpipes are catless, 1) is the obvious answer.
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01-26-2008, 10:27 PM	#21
Serjames Colonel 132 Rep 2,426 Posts Drives: E93 335i M-sport Join Date: May 2007 Location: Surrey - UK iTrader: (0) Garage List 2007 E93 335i M Spo ... [0.00] 2003 Nissan Primera S [0.00]	trunk = bonnet old chap __________________
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