Unknown DTC in wiki

Reply Subscribe

Thread Tools

Search this Thread

03-15-2010, 02:27 PM

shoppinit

Audiworld Junior Member

Thread Starter

Join Date: Feb 2009

Posts: 17

Likes: 0

Received 0 Likes on 0 Posts

Unknown DTC in wiki

Is there anywhere I can get information about 17416? Nothing in the wiki. What would the implausible signal be? These are new Bosch MAFs that I installed today.

Code:

Monday,15,March,2010,21:48:26:19387
VCDS Version: Release 908.1

                Address 01: Engine       Labels: 077-907-558-BCY.LBL
Control Module Part Number: 4D1 907 558 
  Component and/or Version: 4.2l V8/5VT     G   0002
           Software Coding: 0010752
            Work Shop Code: WSC 00000 
4 Faults Found:

17535 - Fuel Trim; Bank 1 (Mult): System too Rich 
        P1127 - 002 - Lower Limit Exceeded - Intermittent
17544 - Fuel Trim: Bank 1 (Add): System too Lean 
        P1136 - 001 - Upper Limit Exceeded
17546 - Fuel Trim: Bank 2 (Add): System too Lean 
        P1138 - 001 - Upper Limit Exceeded
17416 - Mass Air Flow Sensor 1/2: Implausible Signal 
        P1008 - 008 - Implausible Signal - Intermittent

Readiness: 0010 1101

Reply Like

03-16-2010, 06:28 AM

Uwe@Ross-Tech.com

Audiworld Premium Sponsor

Join Date: Sep 2000

Posts: 2,230

Likes: 0

Received 0 Likes on 0 Posts

Although there's not much available regarding this code, I would expect that the ECU is unhappy about a difference in signal between the two MAFs. You might want to find the live readings for the two MAFs in the Measuring Blocks and take a look at what the ECU is actually seeing from each of them.

-Uwe-

__________________
http://www.Ross-Tech.com

Reply Like

03-16-2010, 07:20 AM

shoppinit

Audiworld Junior Member

Thread Starter

Join Date: Feb 2009

Posts: 17

Likes: 0

Received 0 Likes on 0 Posts

Quote:

Originally Posted by Uwe@Ross-Tech.com

Although there's not much available regarding this code, I would expect that the ECU is unhappy about a difference in signal between the two MAFs.

Thanks for the reply, Uwe. I managed to find the following information about this DTC. I also resolved this problem by reseating the MAFs. Unmetered air was entering the system. You might want to update the wiki with this for 17416:

Quote:

In response to fault "P1008" the two air mass meters are not checked for mutual plausibility by the engine control unit as might be expected. Instead, the two air mass meter signals are summated and then compared to a map value in the engine control unit. Fault "P1008" is detected if the sum total of the two air mass meters is outside a tolerance range.

Reply Like