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Old July 14th, 2017, 10:00   #1
ChatNoirTDI
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Join Date: Oct 2015
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Default Check Engine Light - P2002

Greetings,

My Check Engine light came on (solid yellow). Took the car in to a nearby Pep Boys, and they came up with a P2002 code. Took the car in to the dealer the next morning, and they diagnosed the cause of the fault as a leak in the boost hose (going to the intercoolor) and a leak in the pressure hose (to the equivalent of the throttle body). Cost to repair about $750.

Does this make sense?

I have a 2013 Jetta TDI, about 31,000 miles.

Your kind advise is appreciated.
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Old July 14th, 2017, 10:37   #2
JETaah
 
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Fuel Economy: 53 max, 42 min, average 46
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PepBoys may not be able to read all the codes but...

http://wiki.ross-tech.com/wiki/index...4/P2002/008194

Those exhaust pressure sensors are a known sore spot on these cars.
Get your car away from the dealer.

Check the trusted mechanics list at the top of this page in the sticky threads for someone in your area and see what codes they come up with.
If it requires that an intake hose needs to be replaced (doubt it but, just in case), then you can usually get one at an on-line VW dealer for much less than walking up to the counter.

At that mileage, if it is an emissions related problem, (DPF or exhaust pressure sensor), it may still be under VW warranty.
I could be wrong.
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Last edited by JETaah; July 14th, 2017 at 10:40.
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Old July 14th, 2017, 13:28   #3
BobnOH
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Try a different dealer/shop.
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Old July 15th, 2017, 07:57   #4
eddieleephd
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The Dealer says an exhaust issue if related to the intake? Think about that for a moment.

If the code flashes for the exhaust the intake is not the culprit.
The engine is between them and the ECM knows better than the dealer.

Definitely get it to someone listed in the trusted mechanics list.

If I took it back to the dealer, I would ask them to guarantee their work and that if the parts replaced do not fix the issue they eat the cost and labor!
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Old July 15th, 2017, 08:39   #5
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Quote:
Originally Posted by eddieleephd View Post
. . .
If I took it back to the dealer, I would ask them to guarantee their work and that if the parts replaced do not fix the issue they eat the cost and labor!
They would probably just drop in an entire engine then so they could not be wrong . . . and bill accordingly, sadly . . .
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Old July 15th, 2017, 09:26   #6
eddieleephd
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And if it's the DPF, not the engine, they eat the cost of a new engine too.
Get things in writing!

The diagnosis needs to be for the DPF, not the engine or intake.
Don't let them mess with things the codes are not thrown for!

Ask to see the full scan print out too so you can understand more about it.

Auto store scanners don't see everything!
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Old July 15th, 2017, 17:52   #7
ChatNoirTDI
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Default Check Engine Light - P2002

Thanks All for your kind replies.

Ended up authorizing the dealer to go ahead with the repair...recommended private shop couldn't take my car in until next Wednesday, was already three days into a rental car, plus labor costs at the dealer for diagnostics.

Told P2002 fault (particulate trap bank 1 efficiency below threshold) cleared after leaking hose replaced. Received defective hose with obvious leak from mechanic.

Drove car on freeway, today, for about 30 minutes, higher speeds...Check engine light remained off; performance okay.

Have job Sunday requiring about 100 miles highway driving. Fingers crossed...

If problem not resolved, when should Check Engine light reappear? What else should I look for?

Best regards and, again, my thanks.
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Old August 1st, 2017, 04:34   #8
ChatNoirTDI
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Well...in just under two weeks of driving, the engine light came on again...local Autozone identified same P2002 code. Returned to dealer. Told DPF needs to be replaced (under warranty). Concerned at this premature DPF failure. Any other issues I should be concerned about?

Your kind advise is appreciated.
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Old August 1st, 2017, 14:33   #9
Lightflyer1
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Either the dpf was cracked (common) or you aren't letting it regen properly when it's needed.
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Old August 1st, 2017, 21:36   #10
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Quote:
Originally Posted by Lightflyer1 View Post
Either the dpf was cracked (common) or you aren't letting it regen properly when it's needed.
Cracked DPF? Is this unique to VAG? For the automotive industry? Or is this a general statement on DPFs?

Reason I'm asking is because my tractor has a DPF (no other diesels I own do). I'd never read of such a problem until now. In tractor miles, a DPF is supposed to be warrantied for 3,000 hrs, at which time they're supposedly able to be cleaned to then go for many more hours: I don't expect to ever see these kinds of hours, which is why I didn't worry about getting a tractor with a DPF.

Regarding the OP's issue, I suspect that this is probably SOP for VAG. Replace some easier/cheaper things first hoping the problem is resolved, and only change the DPF as a last resort. May need to first prove that other things aren't responsible before attempting the more expensive repair (when on VAG's dime).

Last edited by UhOh; August 1st, 2017 at 21:42.
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Old October 1st, 2018, 16:48   #11
DieselMann99
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MY CEL just came on and it's a P2002 Code: "Particulate Trap Efficiency Below Threshold"


I plan on doing the buyback very soon, good chance within 30-60 days. Can I do any major harm driving the car for 30-60 days, which would probably be no more than about 1,500 miles?


Also, is there anything I can do to make the problem go away? I've been doing just a little reading up on it. If I drive the car a little hard at higher RPMs for 20 minutes, might that make the problem go away?
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Old October 2nd, 2018, 07:26   #12
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I've been getting that CEL on the 2012 on and off for almost a year.
Don't worry too much. It may come and go but it doesn't affect driving noticeably.
I'm doing the buyback in 10 days also.
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Old October 2nd, 2018, 07:38   #13
vincej
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The only CEL light I remember on my 2013 was P048C exhaust flap malfunction which had a SB out on it and the exhaust flap was replaced on warranty.
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Old June 12th, 2019, 13:29   #14
eastham67
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2003 Jetta tdi no lights who can fix my smog in Torrance Ca 90505 comprehensive component
ent

Last edited by eastham67; June 12th, 2019 at 13:33. Reason: mistake
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Old June 12th, 2019, 13:42   #15
Lightflyer1
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Quote:
Originally Posted by eastham67 View Post
2003 Jetta tdi no lights who can fix my smog in Torrance Ca 90505 comprehensive component
ent
You should start your own thread and be a little more clear about what you need and what is happening.
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