Golf VI R :: CEL With System Too Lean And Rich Fault Message
Nov 1, 2012
How can one get a too lean AND a too rich error, within 150 miles? I'm guessing the too rich code was what through the CEL last night. For reference, the only mod is APR stage 1. That will teach me to drive "spiritedly" with a Porsche Turbo S. (which sounded amazing at WOT btw..)
2 Faults Found:
000369 - Fuel Trim; Bank 1
P0171 - 001 - System Too Lean
Freeze Frame:
Fault Status: 01100001
[Code] ....
000370 - Fuel Trim; Bank 1
P0172 - 002 - System Too Rich - MIL ON
Freeze Frame:
Fault Status: 11100010
[Code] ....
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I have an 04 - V6 with about 55k miles. Tire Pressure Monitor System Fault is the message. The tire pressures are fine. Message appears after 15 minutes or so of driving. After another 5 minutes or so of driving, the fault message goes away - whey you click to vehicle status it says "OK". I took it to my local VW dealer, they said they fixed it, but on the way home from the dealer, it popped up again. They are perplexed. This is not the "Faulty wheel on board" message, it is totally different....
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I've been getting this "system fault workshop!" error message popping up like crazy. Its got a picture of a key, and makes the audible beep when it appears. on a short drive to work, maybe 10 minutes, it will randomly come on and beep anywhere from 3-10 times during my drive. The car starts and drives perfectly fine. This has been happening for a little over a week now. I noticed one post about this before, but that owner seemed to have different symptoms as their car wouldn't start. I really would hate to bring it into the dealership, as I've just paid them a small fortune fixing different things to finally get down to the bottom of it to find out i needed new fuel pump modules.
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I noticed difference in smoothness of gas pedal recently, I have an sct x4 tuner and it shows the short term fuel is 1.25% on idle. Does it mean rich or lean?! And what is the solution for this symptoms!
2000 5.4l xlt
Note : cold start runs fine, goes hesitant when warm, furthermore I have changed the temp. Sensor....without any difference.
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97 shortie. 3.0 245,000 miles. I've already cleaned the throttle body and the idle air control valve. Throttle position sensor reads 5 volts, good ground, and a smooth voltage increase from idle to wide open throttle and back down. Which of these codes is most likely to cause erratic idle? Mostly in the morning.
P0340 Camshaft position sensor.
P1443 Evaporative purge flow sensor.
P0401 Insufficient EGR flow.
P0171 Air/fuel ratio is too lean or rich for PCM to correct.
I doubt it's number 1, and number 4 seems too general to be any use. I'm leaning toward number 3. Seems I read somewhere that the tube from the exhaust gets plugged up. This started when I disconnected a plug from the blue air bag box to get rid of that beeping. Coincidence?
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The only time I get to open it up is when I go run errands out of the immediate local area or visiting friends and family. On one of those trips, before I noticed the hesitation, I attempted to accelerate from 60 to pass on the expressway and it bucked and resisted like a horse. It finally took off up to 80 and completed that journey with no issue but the check engine light came on for a bit. The check engine light went off when I shut it down and hasn't come back on since.
New ride: 2011 3.5L Ecoboost....
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I have a couple of fun curves I hit daily and most days I push the car pretty hard. So, I hit one the other day on the way home from work and the freaking airbag light came on with a fault message. I immediately suspected that when my seat belt tightened that the sensor in the seat belt connector freaked out. I later scanned with VAGCOM and confirmed that I have the famous high resistance message for the driver side seat belt connector. I remember that some people had luck by cleaning the connections to the bottom of the seat and the switch. Maybe that is all I have to do. Got to love the .:R. I break stuff as fast as I fix stuff.
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My engine is running rich, flooding? My truck is a 1986 F-150 302 EFI. The engine idles rough, black smoke and soot comes out the exhaust pipes, and black soot on spark plugs. Symptoms seem to disappear if I throttle the engine and hold it, but as soon as I release the throttle the symptoms reappear and in most case causes the engine to die. These symptoms have just started a week ago. What the problem is.
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Sunday I received the dreaded DEF system fault message on my 2012 CC SRW SB FX4 with 7800 miles on it. Warned me that speed will be reduced to 50 MPH in 50 miles. I have a CTS Insight, so I checked for DTC's. First one was P2200 - NOx sensor circuit (Bank 1, Sensor 1), the second one was P204F - Reductant system performance (Bank 1).
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About a week ago the MIL came on and a VCDS scan (below) shows DTC P0171 & P0174 System Too Lean - MIL ON. I cleared the codes and the MIL came back on twice over the last week, both times with the same codes. I cleared the codes each time and it takes a while for the MIL to come back on. The car runs very good at speed but it has what feels like a little misfire at idle. This is especially noticeable when in gear, it seems the rpm drops a little bit every few seconds, but the time between those drops is not consistent. I made two videos to show this, see below.
I looked up the codes in the Bentley manual and it suggests the following:
SAE VAG Description
P0171 16555 System Too Lean Bank 1
Exhaust system
Exhaust system components, removing and installing
Fuel injectors
Fuel injectors, checking
[Code] .....
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I have Lexus 460 LS L 2007. Few months back changed the battery and every thing was ok. 2 months after I had problem in the sound system ( radio and dvd ) which was on and off. One month back suddenly I had all the warning lights in the dashboard on with massage saying that that the brake system is malfunctioning and check the ABS system.
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I have a 2004 VW Phaeton.
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