Golf IV / Jetta IV :: 5 Engine Fault Codes - Cam Position Sensor / Knock Sensor / Secondary Injection Pump And Mass Air Flow
Jun 12, 2015
I recently picked up a 2000 jetta vr6 for a very good price its a glx I have owned a vr6 before and done timing chains myself on it this one is a glx , I am having 5 fault engine codes on my vagcom they are cam position sensor , knock sensor, secondary injection pump, and mass air flow it ran fine 100 miles yesterday this morning the epc came on then went off and ran bad can these codes all be related or do I have to replace each sensor individually..
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I got 2001 vw jetta 2.0.. I keep getting check engine light,,when i scan it keep saying P0411 Secondary Air Injection System Incorrect Flow Detected. i replaced new smog air pump, and new egr valve and today i was driving car and i got check engine light, its still same code.
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2004 VR6 24v ... I had another thread about my son's car stalling after driving about 20 miles and then running good again after letting it sit for a couple of hours. Anyway I changed the Crank Position Sensor and I have been driving it work and back the last couple of days so I am starting to relax that the CPS fixed that problem. Won't be positively sure for a while as the problem took a while to occur. So far so good.
While coming to work today the car picked up the P0411 code, secondary air injection system incorrect flow. When I changed the CPS sensor i unbolted a module underneath the car by the oil filter to get better access to the CPS. I did not remove it, just unbolted it so I could push it out of the way about and inch.
After putting it all back together and driving it for several trips with no stalling this P0411 comes on. Is that module I moved the Secondary Air Pump and could I have disturbed something. I will check it when I get home. How critical is that code. I read where it works to warm a cold engine. What effect would there be driving with that code?
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I've got a 2003 Jetta Wolfsberg that is acting up, I'll do my best to describe and outline the steps I've taken with the mechanic to fix the problem,
Occasionally, when starting the car one of two things happens, (1) engine turns over, fires, and then dies. Removing the key, letting the car sit for 30 seconds and trying again usually gets the car started. (2) The car will start but will run VERY roughly (misfiring, sounding like the engine is choking out). Very much like this (only sometimes much worse, usually ending in a stall): [URL] ....
Turning the car off, removing the key, letting it sit, and then trying it again will eventually work, even though it might take a few cycles. Once the car gets running it almost always runs fine from thereon. (There have been a couple occasions where the car has gone into limp mode, even on the freeway. Pulling over, letting it sit, and starting it again almost always fixes the problem. I've not yet been stranded.)
Diagnosis & Steps taken:
I get regular codes for the camshaft position sensor and also for the MAP (Barometric pressure) sensor. Both have been replaced.The MAP sensor and the atmospheric pressure readings are off by about 30 (something like 960 and 990). My mechanic thought that maybe it was an electrical problem, he noted that the two sensors mentioned above share a common ground. He replaced the ground because it looked corroded. This brought the pressure numbers both to 990 and the car ran perfectly for a few weeks.One thought was to splice in a new wire to the MAP sensor, to see whether it was a signal problem, this hasn't been done yet. Another possibility was that there is a problem with the ECM.
I THINK, that the problems began just after having the computer flashed at the dealership two years ago. I'd got a code about an update and so the dealership did this. I don't know whether this could have had any effect on these problems, but the times lined up too well to not mention it.
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My 2006 W12 has been trouble free since taking delivery over a year and a half and 30K miles ago. Just broke 60K total miles over the weekend and the engine light came on. I have pasted the scan below. I cleared the codes and drove about 500 miles before the MIL reappeared. I have read this thread: [URL] ....
My first question is: Is there any harm in continuing to drive it?
I have visually inspected the secondary air injection system hoses and can't find anything glaring (no kinks, leaks, disconnections). I am open to taking the car to the dealership but I have low confidence in their diagnostic capabilities. I am fine with them doing work once we know what is wrong but I want to tell them what to do (replace a bunch of hoses for example). How to proceed?
Address 01: Engine Labels: 07C-906-018-BAP1.lbl
Part No SW: 07C 906 018 AJ HW: 000 000 000 00
Component: D1-6.0L-AT-LEV2 G 6722
Revision: --H01--- Serial number: VWZ3Z0E5400307
Coding: 0000173
[Code] ....
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Need to diagnose an issue with my 2012 GTI its got 39,000 miles its stage 2 Unitronic tune. So I was driving like an idiot coming home one night and i jumped a set of train tracks. Bent my plastics a little and when I cranked my car the next day my CEL was on. I noticed my intake was much noiser than usual. My buddy checked the code and said i needed a new mass air flow sensor. We replaced it and my CEl came back on within 20 minutes of replacing the sensor.
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What is that called? Mass air flow sensor wiring harness? I google 2011 vw gti MAF wiring harness, and i get nothing, or crap thats almost not related to what im looking for. While I was installing my intake, I accidently cut half of the wire to my MAF located behind the battery. Why I was cutting, dont ask, i was impatient. Anyways, what is it called? I want to replace my MAF and the wiring that leads to it.
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Ok so I just replaced my mass air flow sensor about a week ago. My check engine light just came back on and when I scanned it it said mass air flow sensor. What could be causing this to happen again? The codes are P0102, P0440, P0440.
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Keep getting o2 fault codes. Replaced sensors came back. tried another set of sensors came back. Checked wiring for breaks no luck. Replaced ecu still no luck. So going through wiring again and checking for continuity. Looking for a list of what pins to check for voltages, and what each should be from ecu to sensor connectors. Looking for what wire is signal and how to and what voltages to check for...
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I cleaned my k&n air filter on my 02 passat 1.8 turbo let it dry oiled it very lightly, and 50 miles later I get a check engine light on, pulled the code 16486 and it says Mass or Volume Air Flow Circ Low Input. Cleared the code put a frame in until I can get it filter. Why that would throw me that code, k&n oil gumming up my sensor??
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I've had two mass air flow sensors burn out in my 05 TDI Passat. Dealer says it's faulty wiring in my vegetable oil conversion. Sensible?
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I think I'm getting bad gas mileage on my 03 passat... I don't think it's my imagination...? I'm gonna keep track of how many miles I get next time I fill up, how do I know if I should look into a new MAF sensor?
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2009 accent, cant find its location. Picture would be nice...
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Oil leak.... I can not locate the MAF sensor in my 2012 gls 2.4l sonata. I followed from the front tube intake through the air box to the throttle body and i do not see one. I also have the service manual and no mention of said sensor!
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Cleaning the MAF on the GX460? I have seen videos on youtube but the MAF positioning on the GX460 is a little hard to get to. I am wanting to clean the MAF because I am still experiencing some sluggishness. The vehicle's response had improved after a fuel induction and a spark plug change but it is still sluggish when compared to other GX's I have test drove. It is sort of inconsistent. Sometimes, it drives super smooth and the gears quickly shift other times the gears take forever to upshift and downshift.
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2006 Sonata with 3.3L V6. How to remove the MAF sensor on this engine? I see it right between the air cleaner and the throttle body input but can't get the electrical connector off for one thing. I bought some MAF cleaner (don't use carb cleaner) and did this on my other car (a Saab) and I cleaned the throttle body butterfly valve at he same time (with Valvoline carb and Throttle Body cleaner spray). It really needed it. I use a lightly oiled K&N filter on the Sonata and I hear it's even more important to clean the MAF sensor it under these conditions. You just blast it with the spray and reinstall.
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I had to have my 2009 Prius towed 2 days ago. It has just over 73000 miles. I was on the highway and suddenly experienced a lack of power. Eventually, the dashboard lit up: check engine light, big red exclamation point, and my favourite: it said "problem" on the center display. I pulled over and let it sit for a few minutes and tried starting it.
All the same warning lights came on. The battery level was at 1 bar. The gasoline engine would start for maybe 10 seconds and shut off. I could move the car on battery power only, but I had several miles to go before the next exit, uphill, so I figured I needed to be towed.
Long story short, my dealer said all this is due to a failed mass air flow sensor, and is going to replace it. Does that make sense? I thought a faulty sensor might make the car run roughly or whatever, but not actually prevent the engine from running.
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I took the car out for a little spin about 8 miles. We where about .5 of a mile from the house and there is a section where you have to stop on a little bit of a hill. I stalled the car due to the new Dm clutch then headed to the house and the car started to run like crap. I hooked up VAGCOM and had this code:
17748.P1340 camshaft position sensor-G40/ Engine speed sensor-G28: incorrect allocation(#1)
I swapped out the 2 cam position sensors and cleared the code and started the car and it still ran like crap. I just happen to have a new Cam position sensor(hall sensor) so I swapped it out in both cam positions one at a time and cleared the code and the car still runs like crap.
Is there a way to check(test) with vagcom to see if its one of the engine speed sensors?
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Got told by the dealer I need to replace my Mass Air Flow Sensor...to the tune of $657 dollars. And get a throttle body cleaning.
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2001 Olds Alero. i'm getting a P0300 reading, Cylinder misfire, and i was told a could months ago my mass air flow sensor was out of range. are they related? how serious is a misfire? can i drive a couple hundred miles before service?
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"VSC OFF" light came on the other day. I took my RX350 to the dealer. The dealer said Heater Element sensor is bad. They didnot have this part in stock. I googled this part. Nothing comes up under that search. I took it to Autozone and the code came up as Mass Air flow sensor. Are both of these same thing?
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