Ross-Tech, I'm stumped 17551 - Load Calculation Cross Check: Upper Limit Exceeded

[FuturaYell00]

I will start from the beginning. 2000 VR6 GTI 150k miles. I had no prior codes/CEL until a couple of weeks ago after some maintenance. Two weeks ago, I replaced my chains, guides, clutch, and front bearings, wires, and plugs. Coil pack is in great shape (replaced a couple years back) While I was in there, I removed my upper intake (obviously to get to the chains) and I removed my Throttle body to give it a nice cleaning. I cleaned all connections while I was in there as well. I realized I needed to do a TBA before I started the car, so I bought my $100 license and used basic settings to perform a TBA once the car was put back together.

After about a week I started getting this code:17551 - Load Calculation Cross Check: Upper Limit Exceeded

I performed the TBA a few more times, bought a new filter for my short ram intakeI, I have had the intake for 8 years, with no problems. The code kept coming back, so I bought a brand new Bosch MAF. After about 4 fresh starts after clearing the code again..... ITS BACK.

One thing I thought was odd, but perhaps its normal is that when I wedge something onto the pedal, the rpms don't stay constant, they jump around a range of about 200 rpms, sometimes staying a bit more constant than others. I have sprayed hoses and intake area with carb cleaner looking for change in idle, nothin... So what could it possibly be?

Here are some values I ran, but I don't know if they are irregular, and what the fix would be if they are.

Group 060: TVS 1 (10.9%) TVS 2 (89.1%) Throttle adaptation steps counter (9) (ADP run OK)

Group 020 engine running: 680rpm Engine load (23.3%) Injection timing (3.69ms) MassAirFlow (4.83g/s)

Here is the full auto-scan. Thanks for any and all help.

VCDS-Lite Version: Release 1.1
Saturday, 07 July 2012, 18:13:21:16971


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

-------------------------------------------------------------------------------
Address 01: Engine Labels: 021-906-018-AFP.LBL
Controller: 021 906 018 M
Component: MOTRONIC ME7.1 G V04
Coding: 00031
Shop #: WSC 01316
VCID: 184309286B9D
1 Fault Found:
17551 - Load Calculation Cross Check: Upper Limit Exceeded
P1143 - 35-00 - -
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 1J0-907-37x-ABS.LBL
Controller: 1J0 907 379 R
Component: ASR 20 IE CAN 0001
Coding: 13204
Shop #: WSC 01316
VCID: 40F38148538D
No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 3Bx-907-044.LBL
Controller: 3B1 907 044 B
Component: CLIMATRONIC V 1.0.0
Coding: 01000
Shop #: WSC 01316
VCID: 203321C8B3CD
No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 6Q0-909-605-VW5.LBL
Controller: 6Q0 909 605 A
Component: 09 AIRBAG VW5 0003
Coding: 12345
Shop #: WSC 01316
VCID: 351DE09C1C4F
No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 1J0-920-xx0-17.LBL
Controller: 1J0 920 920 D
Component: A4-KOMBIINSTR. VDO V16
Coding: 07262
Shop #: WSC 01316
VCID: 253D30DCACEF
IMMO-IDENTNR: VWZ7Z0X1699963
No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 6N0-909-901-19.LBL
Controller: 6N0 909 901
Component: Gateway K<->CAN 0001
Coding: 00006
Shop #: WSC 01316
VCID: F0939188A3AD
No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 1J0-959-799.LBL
Controller: 1J0 959 799 AJ
Component: 62 Zentral-SG Komf. 0001
Coding: 00256
Shop #: WSC 01316
VCID: 867FD750B129
2 Faults Found:
01358 - Internal Central Locking Switch; Driver Side (E150)
27-10 - Implausible Signal - Intermittent
00913 - Window Regulator Switch; Front Right Driver (E81)
27-10 - Implausible Signal - Intermittent

End --------------------------------------------------------------------------------------------------VCDS-

[kyle_b]

check and post your fuel trims(mvb 32) after fault has occured

[FuturaYell00]

Any Help appreciated. It just keeps getting worse. Here are the latest codes AFTER replacing the MAF with a Brand new Bosch one.

Measuring blocks 32:
Adaptation (Idle) Bank 1 Sensor 1 = (-0.6%)
Adaptation (Partial) Bank 1 Sensor 1 =(-6.3%)

Here are the latest codes. Car ran great for a week after all the work. Now it seems to be running a bit rough.

Monday, 09 July 2012, 16:47:40:16971

VCDS-Lite Version: Release 1.1

Control Module Part Number: 021 906 018 M

Component and/or Version: MOTRONIC ME7.1 G V04

Software Coding: 00031

Work Shop Code: WSC 01316

VCID: 184309286B9D

3 Faults Found:

16497 - Intake Air Temp. Sensor (G42): Signal too High

P0113 - 35-10 - - - Intermittent

16486 - Mass Air Flow Sensor (G70): Signal too Low

P0102 - 35-10 - - - Intermittent

17551 - Load Calculation Cross Check: Upper Limit Exceeded

P1143 - 35-10 - - - Intermittent

[Jack@European Parts]

The new MAF is also bad, or China crap clone, go back to old one, or get an OEM factory new unit only!
Warning!
Many issues with clone China Bosch crap!

Since a work detail was just done.

Timing on the new chain is incorrect, slightly retarded, but within window of ecu threshold to not cause a correlation DTC. However, can cause the cross check DTC.

An air leak due to improper gasket install or line negated installed or reversed?
A bad brake light switch. Incorrect wattage brake light or wrong bulbs installed.

A bad ecu or ground connection. Implausible ignition switch or supply voltage ecu relay.

[FuturaYell00]

I hear you loud and clear, but it seems odd the new MAF would be bad. Bought brand new Bosch from MJM. As far as the timing, the car ran great for a little over a week 1000+ miles with no codes thrown. Cam lock tool was used and intermediate shafts were lined up correctly, checked by myself and 1 other mechanic to confirm correct place.

Could the 17551 code be from a a bad TB or TPS if either was damaged while cleaning?
How do these codes indicate that the timing is retarded?
Also what indicates the wrong bulbs or brake light switch?

[Jack@European Parts]

Experience my friend.

Just kidding!

The Brake light switch is a direct link to the EPC, so is the clutch switch.
Highly unlikely the TBA pedal switch is bad. However, if a bad OXS heater is on the fritz it can also cause this to mislead the ecu inside for false bad ground attenuation.
The throttle valve itself could be bad, however is also not very likely.
If out of spec it can cause so stupid issues such as this. Because the lamps are tied to it, this can also escalate the issue.
Take the MAF apart, and take pictures of the #s inside, post for me to see, or email.

It is actually very possible the new MAF can be bad right out of the box, in some cases.

[FuturaYell00]

Email sent.

[Jack@European Parts]

Replied

You sir,.... have a BOSCH clone!

Nite.

[stan067]

Need a new mass OEM. Have seen all mass be bad right out of the box. So you will no be the first.
Good Luck

[animaniac]

17551/P1143/004419 - Load Calculation Cross Check: Upper Limit Exceeded
Possible Solutions
Check Mass Air Flow Sensors (G70)
Check Throttle Pedal
Check Throttle Pedal Position Sensor (G79)
Check Throttle Pedal Position Sensor 2 (G185)
Check Throttle Body
Check Angle Sensor 1 for Throttle Actuator (G187)
Check Angle Sensor 2 for Throttle Actuator (G188)
Check Engine Control Unit

If that is a bosch clone mass meter, then that will be your problem..

I've had many cheap mass meters and they don't last long so i got a genuine bosch one, it was a re-manufactured one and the box had the bosch holograms on it.

[Jack@European Parts]

Cloned re-manufactured parts should be considered terrorism here.

STOP FOD!
Give before it hurts!

http://www.fodcontrol.com/foreign-object-damage.html

[aircooled56]

I'm curious for any more help on this matter. I'm dealing with the same problem after years of no MIL on after recently cleaning my throttle body. Really sucks

[FuturaYell00]

Months later, my MIL comes and goes, it even goes off for periods over 1000 miles then it randomly comes back. It's a total mystery to me, I still don't know whats causing it. Hopefully someone else can chime in with some more help...

[Jack@European Parts]

If you have the correct authentic MAF, then you must have a very so slight vacuum leak, an aftermarket coil pack, wrong plugs heat range, or worn, aftermarket OXS sensors or modified exhaust.

Reversed vacuum line?
Even a new OEM MAF can be bad, please don't forget they are junk to begin with.

Did you get the firmware update needed?

[aircooled56]

What firmware update? For what? How do you reverse a vacuum line? There are so few to begin with. Ill start with replacing vacuum lines as that seems most likely in my case.

[Jack@European Parts]

Address 01: Engine Labels: 021-906-018-AFP.LBL
Controller: 021 906 018 M
Component: MOTRONIC ME7.1 G V04 <<<<
This one when referencing this post, not you because, you have not posted an auto-scan.
Lines can be hooked up in reverse for this application, I see it often.

Wanna post a scan or start your own thread?