I am not very familiar with these systems on my car yet, but I figure these arms should be cycling or something during this test, should they not? This code is similar to the P2005, P2007, P2008, P2009, P2010 and P2015. I wanted the mod to be reversible. Look at the linkages on the intake they should move back and forth to test themselves Sent you a pm. The codes will each have their own freeze frame data which indicates the condition the vehicle was under when the code was set. Several of the tests require vacuum reserve, including the flap tests. Did you get a custom tune to compensate? If the misfire still stays on cylinder 6 you know you have a bigger issue.
The flap also opens at high road speeds since there is enough air movement thru the engine compartment to reduce the temp of the air being drawn thru the power flap opening. For example, the Q7 4. My theory on the purpose of the flaps is to increase air velocity at low rpm which promotes proper swirl inside the combustion chamber for complete fuel mixing. Logged Unable to get a picture from the front of the intake. Codes are cleared and if it happens again I'll need a new intake manifold tumble flap sensor on bank 2 which is what is first suspected. The inlet horn trumpet is very difficult to see on the outside of the airbox since its practically under the headlight. We have 1 flap in the air box, 8 flaps in the intake manifold, and 2 flaps in the exhaut.
The specified values are either 0% tumble position or 99. The testing procedure and info in this post should help determine if an issue exists. If they are not plugged, there will be a vacuum leak in the entire flap system every time the exhaust solenoids are commanded to open. How easily it should move to and fro? Something tells me the linkages likely won't move during this test seeing as they didn't move at all when I did the vagcom diagnostics tests. Did anything break or need changing as a result of you doing the work? The function test needs to be done shortly after the car has been running. Hoping they can find the problem and not charge me an arm and a leg to right it.
Maybe he got his Indy shop to do the work instead of the Audi dealership he normally brought the car to. So as suspected the potentiometer sensor is at fault because it is not measuring correctly. Please keep in mind that these valves also have mechanical connections that can break and springs that can bind. Pain in the butt, there goes my countermeasure savings. Logged If the code comes back right away then you definitely have a issue. If you do that's a easy fix. I could be wrong though.
Logged The first thing to do is consider getting a vagcom that way you can do some of your own testing. If your lines crack, break, or the system is compromised, you end up with those faults. This function test should help. I don't have the records to show it, but I was told by the previous owner than the coil packs and spark plugs were recently changed. If you quickly walk towards the back of the car, you should hear the flaps opening and closing. Try to view both white plastic arms as they move.
Unplug the battery and plug it back in. This is fine as long as the vacuum line going to each valve is plugged. Similar to the vehicles that have adjustable intake runners. Keep in mind that the tumble flaps are for just that - tumble. I think i also need to replace my intake manifold for the same reason as yours however I only have a fault code for bank 1? Yes you do need to take off the main manifold, and also the fuel lines attatched to the manifold if I recall correctly.
If the misfire still stays on cylinder 6 you know you have a bigger issue. How is your relative fuel mileage? These cleaners are ran through a vacuum line and breakdown the carbon deposits. See if you get misfires on the cylinder you moved the coil pack to. Click the button again to stop the test. Click again to stop the test. I read it somewhere that the drive unit might be failing too so I removed the drive unit Part number 06E133619, see pic below as well and tried to move the shaft with my fingers. If excessive, the flaps may not be able to move their full range.
Click activate and the solenoid will start cycling the flaps. I recently had the dreaded engine light pop up and flag the below errors, has anyone come accross this before? Might be that is causing the problem. At higher rpm, they appear to be rather unobtrusive to flow. What repairs can fix the P2004 code? It actually tests both banks because the solenoid being checked the Intake manifold runner control valve operates 2 diaphragms, one for each bank. The Tech also suggested that 64k miles on one of these V8's is nothing and they see few faults with the cars, mainly sensor and occasionally vacuum system related issues.
Sometimes some emery cloth on the flap perimeter and housing bore is all it takes to get the flap to move as it should. I suggest you only let it cycle 2-3 times so that there is sufficient vacuum reserve left for the Manifold Flap test. What causes the P2004 code? I'm wondering if this flap issue might be a dead solenoid, just because there was no noise or ticking at all when I did the tests before. I have also a failed actuator on the right Bank 1 lower intake manifold. A bit of jiggling of the actuator arm got that down to 5% but the arm was at the 0% angle position like on bank 1.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Delighted all is well, and that hopefully the car is ready for the European trip. Anyways, my concern was the intake manifold flaps more than anything and when we tested them, they didnt move or click or do anything. I'm bringing in the car on friday to quality foreign car care in ballston spa. The specified and actual values of the Exhaust Flap position can be logged as well.