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Big problem? I got smoke coming out around the engine

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Old Nov 22, 2006 | 04:23 PM
  #31  
Amze's Avatar
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Joined: Nov 2006
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Default RE: Big problem? I got smoke coming out around the engine

16686 cylinder 2 misfire

Vag-Com has it listed, why did you say it hasnt picked it up?
 
Old Nov 22, 2006 | 06:45 PM
  #32  
acetrebo's Avatar
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Joined: Nov 2005
Posts: 3,393
From: Columbus Ohio
Default RE: Big problem? I got smoke coming out around the engine


ORIGINAL: nickt1216

So i believe i figured out what was causing the white smoke around my engine bay. Basically the 2 or 3 days before my car had all the problems; i got an oil change at LubeExpress. While they were filling my oil, they spilt a ton of oil around my engine. I know everyone says burnt oil is black/blue but for some reason all I saw was gray/white smoke, let me know if I’m wrong. As for the engine possibly having a gasket leak, i recently did a compression test and all the values psi were the same. I figure, how could the head gasket be leaking if all the psi is the same? (correct reasoning? Please let me know)

As for the other major problems with my car, I believe it was due to the amount of oil in my car. Apparently lubeExpress only filled the car up to 1/4th the max amount. I’m not sure if it was leaking or something, but for some reason that’s all I had in my car! how do I test for leaks? After finding that out, I filled my car up to the max along with gunk engine cleaner. I let the car sit for 5 minutes running at constant speed, and then drain the oil with gunk and my car’s oil was totally black! (btw, should I have also changed the oil filter? How do I get it off the car? Should I be worried that the oil is black???) After using gunk I put normal oil into the car and currently planning to drive the car around for a week or 2 before draining it out again to see what color it comes out as.
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As for other recent activities, I got my car vagged and these are the codes I got.

18010 ECM supply voltage from battery
17967 throttle control basic setting malfunction
17973 throttle control unit lower stop not reached
16684 random misfire
16690 cylinder 6 misfire
18014 rough road signal circuit malfunction
16689 cylinder 5 misfire
16686 cylinder 2 misfire

To see if I can resolve the misfires, just yesterday I have replaced all my sparkplugs and am planning to pick up some spark plug cables. I have also recently cleared my codes but I can totally still see that my seat belts and airbags lights are still on. I can also kinda still hear a misfire on cylinder 2, yet vagcom doesn’t pick it up, any ideas???
Well, your on the right track.

You did plugs already. Next step would be to eliminate coilpacks as the problem, and or the Ignition control model. Do you have a service manual? That would be well worth the money for you. also a multimeter is a good tool to have.

So, clear the codes. (if no code reader, pull the battery neg cable for 5 min.)

Heres a test for the ICM
http://forums.audiworld.com/a4/msgs/1594531.phtml

You can rule out the $150 ICM with this test.

If that checks out, then maybe you have a bad coilpack. If you get a misfire, there has to be a code. so what you want to do is find out what cylinder is missfiring. Then, swap that coil pack into another cylinder. If the misfire follows the coilpack, then you know the coilpack is bad and needs replaced.

That is about all there is as far as mis-fires go. It should be one of those issues. It could also be a bad injector, but that seems kind of rare for this vehicle. This could be the case if the icm is good, the coils are good, yet you have one cylinder that is not firing, and pulling the plug out, its completely dry with no smell of gas on it, then a bad injector could be the issue.

Hope this helps you out, good luck.






 
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