OBD Error code p1434???
12-10-2009, 10:37 AM
#21
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My Ride: Original E60 Spec:
530i - Silver Grey Out, Black Dakota Leather In, Navigation Pro, Voice Command, HiFi Audio, Sports Package, Premium Package, Cold Weather Package w/ Heated Seats, Style# 123 Alloy Track Wheels, Auto AC, Power Front Seats, Active Turn Xennon Headlights,
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OEM M-Tech Front Bumper, OEM M Side Skirts, OEM M5 Rear Bumper, M5 Trunk Lid Finisher, M5 Style Mirrors, Custom Hamann Style Splitter, Custom Hartge Style Diffuser, RD Sport Boot Spoiler, LCI Taillights, Bruce Miranda's V4 LCI Retro Cables, 6000K Xenon light Bulbs, Xenon White LED License Plate Lights, 8000K HID 9006 Fog Lights, Akalius� Front Headlight Euro Overlays, Matte Black Kidney Grilles, E60.Net Clings, Debadged, Llumar Tinting "Micro Edged, 15% Rear 35% Sides,
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Custom Magnaflow Quad Exhaust w/ Eisenmann Stamped 3� Tips, RPI Scoop (Red)
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V1 Equipped (Hardwired), OEM Alpine CD Changer Retrofit,
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Took Delivery 10/26/2009: LOADED! E60 M5 Silverstone II/Black, Active Seats, Comfort Ventilated/Heated Seats, HUD, Brushed Aluminum Trim,
I had that error just three days ago. It was on only for a day and went away on its own yesterday.
12-10-2009, 11:13 AM
#22
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My Ride: 2008 535i:
(8/07 Build) Metallic Bronze, Beige NASCA Leather, Ventilated Seats, Sport Pkg, Cold Wxr Pkg, Logic-7 Sound, HUD, Night Vision, PDC, Split Rear Seats, NAV, Premium Pkg, Comfort Access, HD Radio, Sport Auto Trans
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Try and locate a schematic diagram that shows you where to find everything and check it out. A bad diverter could eventualy lead to a clogged cat. G/L
01-05-2010, 11:26 AM
#23
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My Ride: 05' 530i-
Got the same warning 2 days ago. Let my sis use my car the night before then the next morning i see that i have a Emissions warning.. Car starts & drives great still so will inspect the gas cap since she did fill up my tank..
01-05-2010, 05:08 PM
#24
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secondary air pump has to deal with what is most commonly known as the smog pump. most commonly what happens is either the changeover valve gets clogged up with carbon and causes a fault or the vacuum hose that is attached to the changeover valves dries out and either cracks or breaks off. If it is saying there is a short, check the wiring to and at the pump. they are ususally mounted down low on the passenger side toward the front of the engine compartment.
04-03-2010, 06:10 AM
#25
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Save yourself the guessing and take it to a dealer or BMW shop for diagnostic, as much as it sucks, pay the $100 fee but they will tell you exactly what needs to be replaced and you can decide whether you can DIY or have a shop fix it. OBD II scanner cannot interpret Mercedes and BMW codes so the code OBD II will throw out at you will be far from the problem. SO spend that $100 to save money later instead of randomly replacing MAF sensor, which K&N claims can not be damaged by the oil even if you soak the filter (check their site).
04-03-2010, 10:53 AM
#26
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My Ride: 2006 550i, 1984 Mercedes Gelandewagen
so basically the MAF sensor i have now is messed up since the oil got into it, it cannot be fixed right? if i do replace the sensor will the k&n mess it up again? what can i do to prevent this from happening again? i though lots of people on here had the k&n, strange that only a few people are experiencing this.
04-03-2010, 12:24 PM
#27
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My Ride: 04 545i Sport Pkg, Cold Weather, Nav
Have you just try to clear it? I got this code once when my battery died. Took it over to my friends shop and he said it could be a sensor or a number of things, he told me to just clear it and see what happens. That was over 6 months ago and no check engine or code to this day. Possibly just a fluke, as you know with all the electronics on our cars. Give it a try and see what happens.
Good luck
Good luck
04-04-2010, 06:12 AM
#28
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I have had increased emissions/check engine lights on a week ago.My car is also 2005 545i with no warranty so it scared the shit out of me 
After a week it just dissapeared.It was the third time within the last year but this time the lights were lit longer then usually.So I would just wait maybe it just resolves itself. Good luck!
After a week it just dissapeared.It was the third time within the last year but this time the lights were lit longer then usually.So I would just wait maybe it just resolves itself. Good luck!
04-04-2010, 05:56 PM
#29
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My Ride: 04 545i 6speed
I have an 04 545i and my fault code was P-1434 as well. Took car to dealership last week due to increased emissions/p1434. They replaced DTML pump. Apparently it regulates the fuel pressure in the gas tank. Part # 16-13-7-193-479. Replaced under CPO warranty and luckily only had to pay $50 deductible.
04-04-2010, 07:31 PM
#30
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My Ride: 545i Sport
Model Year: 2004
Engine: N62
Same code here-P1434. Took the car to the dealer before the ext. warranty expire. It's been a week since, SA told me their programming kept crashing and they ordered something to fix it. I'm enjoying the M Sport 335i loaner, much better than the last 335i that I got(BMW of SD).