Phaeton :: Check Engine Light Came On - P0491 And P0492
May 2, 2014
I did not even drive the car 2 times since I bought it and the check engine light came on last night. Codes show P0491 and P0492. What can be the cause and what I should check or change?
We also had a monsoon of rain in NY on Wed. I found a puddle of water in the passenger foot carpet area. It was drenched. Glove box was dry and the seat was dry. Where can this water be coming from?? Could this have triggered my check engine?
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So I've had the car since Saturday and this morning when I went out to run some errands I get a check light. The codes are P0491 and P0492 which I did a search and found out is the secondary air pump and relay.
A few sites I checked (but were for other VW's) said it might be a fuse. If it is the secondary air pump or relay or fuse where are they located so I can take a look? Can I also assume they are dealer only items?
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Codes P0491 and P0492 ... The Air pump works, so what's the problem? Perhaps the combo valve? If so how do I check this?
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I was told that these are affiliated to a problem with the air pump (not the one you pump the tire up with) -- Need to locate the air pump? Hoping to find a loose hose or something I can fix.
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The dealership wants to charge me just to "diagnose" it. I'd like to figure it out myself if at all possible. what it is?
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A couple of weeks ago, I went out in the evening after work, started my car and the CEL came on. It was fairly cold, probably 20 F. The car idled fine, but lacked power under acceleration. After the engine warmed up, it ran fine. The light stayed on for about a week, with the same symptoms. This week, we got a warm spell, 50s and 60s, and the light has gone out. This would seem to imply some malfunction of a temperature sensor, presumably coolant. It seems that when the engine is extremely cold, it is not adjusting the mixture appropriately, after it warms up, it is fine, or at least acceptable. I have an appointment to bring it in to the dealer. I assume they will be able to retrieve the code even if the light is not currently on.
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Today I got the engine light blink a couple of times and then steady on. Parked the car, waited a few minutes, start again just the engine light on (not blinking anymore).
I scanned the car and got this
VCDS-Lite Version: Release 1.2
Tuesday, 06 August 2013, 13:48:09:11637
Chassis Type: 3D - B5 VW Phaeton
Scan: 01,02,03,05,06,07,08,09,11,15,16,17,18,19,23,27,34 ,35,36,37,38,42,46,48,49,52,55,56,57,61,62,65,68,6 9,72,76,77
-------------------------------------------------------------------------------
Address 01: Engine Labels: None
Controller: 07C 906 018 C
[Code] .....
I have a hard time believing that all coil packs went bad. My wife told me that when she was driving the car she could hear a clicking noise coming from the trunk so I think this could the fuel pump not giving enough fuel but I was hoping to get an error for it.
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I was driving home and all of a sudden my rpms are at 3.5 4k rpm wont shift to next gear. I put in in tiptronic mode and shift it to 8 it works fine. Then about 10 minutes later check vsc shows on dash traction control light is on check engine light is on and the light next to the check engine i think it is the abs light. I havent pulled the code yet.
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Just got my car back from it's recent service. The trunk wire harness was replaced under extended warranty. I noticed a light bulb emblem on my front center screen but continued on to the grocery. Upon starting car after leaving grocery I received a "check lights" warning on that screen for several seconds. Since the chain of events have been
1) Repair TPMS control module, and this leads to
2) Repair motor that raises rear privacy shield which led to
3) All 5 tire sensors needing replaced, which led immediately to
4) Trunk harness needing replaced and now I have this light issue.
I've literally left the car dealership after the last 3 services with new problems to deal with.
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Just had my lexus dealership do the ELF recall. While it was in there I had them check to see why my check vsc light comes on randomly which sets off the check engine light.
They came back and told me that my water pump is leaking, what are the future problems of a leaking water pump?
They said the check vsc light is coming on, in their words is "found center y pipe, gaskets leaking at front pipe, may still need to replace converter pipe." So what does that mean and what do I need to do?
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If my check brake pads light came on a few days ago, how long do I have to get it to the dealer? Can it wait a few weeks? Months? Or, do I need to drive it straight there?
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I went to my dealer to tell them that I had the sensor light showing "check brake pads" after the normal service at 75000km I left the dealer and the same problem showed.
I returned and was told everything was fine with the pads but to fix the sensors was "not worth it".
A few days later the screen showed I had a flat tire and after trying everything it would not go away after resets etc etc..
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I have a very annoying "check brake light" warning popping up in my dash with a small beep every time I brake. It seems that some of the LEDs are sometimes not illuminated but in a sort of varying configuration. Is this possibly a connector issue? (where are the wires coming from?)
Do I need to replace the LED-bar as a whole or can it be mended in subunits?
When I have to work on the light, do I REALLY have to remove the entire backseat and hatshelf (as WillemBal did to get rid of a fly that was stuck there!) or are there less invasive procedures that can be performed?
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A few days ago my "Check VSC" warning came on along with the check engine and traction lights being on. I left my car in a parking garage for a week when I was on vacation and the lights came on once I started the car after getting back from my trip.
I have had the "Check VSC" warning before and I fixed it by replacing my gas cap. My gas cap seems fine this time around so I got my codes scanned and the only one that came up was P0300. Having this issue with the 2007 Lexus GS 350? I still feel like it's my gas cap because I bought a cheap replacement last time around.
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My Lexus was working fine till yesterday, but today when I started (button press) it, it started giving me a Check VSC error and Check engine light along with Slip Indicator started showing up
Took it to Autozone for the codes and got
P0015
P0304
C1201
B2799
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My friend has a b5.5 passat and he's getting this code; p0492... what that means? or what might be causing that code to come up?
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The CEL tripped yesterday and this is the code autozone pulled. WHat does it mean.
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I'm cruising around and noticed the engine icon warning light go on and stay illuminated. The manual says it is an "exhaust system problem" like an oxygen sensor, and to reduce speed and have the engine checked at a VW service department. I would like to drive back to Evanston (Autobarn) tomorrow but it is about 90 miles from here. I restarted the car in the hopes of it just being a glitch but the light remains lit. Can I do any damage by driving 90 miles. The car seems to still run fine but I am concerned about a breakdown because I have to travel through a few rough areas.
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Currently my parents, who borrowed my phaeton, are stranded with an EPC light, no crank (no attempt to crank) and apparently no other symptoms. They are ~100 miles from a VW dealer.
Phaeton : 2004 V8, ~80K miles, regularly serviced
Car has been stored for a few months and rarely driven (bad gas?). The transmission needs to have software updates/fluid change (has the shuttering issue)
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My 2011 Camry LE 4-cyl has 48k miles. Today I was driving on the highway during very heavy rain. My vehicle slip indicator light came on, along with my check engine light. I stopped at Advanced Auto for a diagnostic check. They said they couldn't be sure if it was a sensor, or maybe a wiring issue.
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I have a 2000 1.8t and I was on my way home from work, sitting at a traffic light and my rpms went up to 1200-1500 and then my check engine light came on.
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