Need help interpreting ENGINE CODES...

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Need help interpreting ENGINE CODES...

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Need help interpreting ENGINE CODES... - 5/18/2008 1:19:38 AM

tcaradonna

Posts: 5
Joined: 5/14/2008
Status: offline

Code Gurus,
My check engine light went on recently so I got a vagcom cable to read them out--3 of them. Now that I have them, I have no idea what they mean or where to go from here.

Can anyone look at my vagcom transcript and offer me some suggestions? This is for a 2001 VW Golf 2.0L A/T.

Thank you for your help!

Here is the transcript...

Saturday,17,May,2008,23:37:52:17968
VAG-COM Version: Release 704.1
Data version: 20071016
Chassis Type: 1J - VW Golf/Bora IV
Scan: 01 02 03 08 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57 75
         76

Mileage: 88890km/55233miles
-------------------------------------------------------------------------------
Address 01: Engine       Labels: None
Part No: 06A 906 032 BQ
Component: 2.0l R4/2V      G *3657
Coding: 00003
Shop #: WSC 00000

3 Faults Found:
17551 - Load Calculation Cross Check: Upper Limit Exceeded
           P1143 - 35-00 - -
16804 - Catalyst System; Bank 1: Efficiency Below Threshold
           P0420 - 35-00 - -
17574 - Long Term Fuel Trim Additive Air; Bank 1; Range 2: System too Rich
           P1166 - 35-00 - -
Readiness: 0000 0000

Post #: 1

RE: Need help interpreting ENGINE CODES... - 5/18/2008 8:16:21 AM

kdfvwmann

Posts: 3
Joined: 5/18/2008
Status: offline

go to this web address for OBD II Codes!

http://autorepair.about.com/cs/troubleshooting/l/bl_obd_3.htm

(in reply to tcaradonna)

Post #: 2

RE: Need help interpreting ENGINE CODES... - 5/18/2008 10:24:42 AM

tcaradonna

Posts: 5
Joined: 5/14/2008
Status: offline

Thanks for the reply. I checked out that website, but 2 of the codes are not listed there and the other provides the same description that the vagcom gave me. What I'm having trouble with is the interpretation of them. What the heck is it trying to tell me?

Here are my feeble guesses:

17551 - Load Calculation Cross Check: Upper Limit Exceeded
           P1143 - 35-00 - -
**No Clue

16804 - Catalyst System; Bank 1: Efficiency Below Threshold
           P0420 - 35-00 - -

**Is this coming from the post-cat O2 sensor? Maybe I have a problem with the cat or the o2 sensor itself?

17574 - Long Term Fuel Trim Additive Air; Bank 1; Range 2: System too Rich
           P1166 - 35-00 - -

**not enough air can get in system? air filter problem?

THANKS!!

(in reply to tcaradonna)

Post #: 3