P0103 Mass Air Flow Sensor - Above limit
P1109 Input Variables, Charge Measurement - Above Limit
P1250 Boost Pressure Control Deviation - Above Limit
P5525 Torque transmission from the DME disturbed at times

P5525 is the one that triggers ABS+PSM lights. DME sends implausible signal to ABS/PSM unit. Either because of bad/wrong MAF, major intake leak or incorrcet or failed parts ( DME or ABS/PSM unit ).
All other codes do also point towards an intake leak. Most likely ones are hoses between turbos and the TB, TB's gasket or plenum's rubber connecting pieces.

 

Well, mine's other hose from the turbo to IC was partially off and it ( Durametric ) still logged 1,3 bar boost...

 

I'm going crazy....

After check the boost leaks the car has new 2 error codes:

P0236
P1136
P0103
P1109
5525

Probably I will go downgrade all the parts....I need the car
!!!!!!!!!
I'm frustrated ...

 

Did you guys do a leak test at the turbos.. blocking one off and pressure testing the other?
to what PSI?

IF you did not have these issues before he installed the kit then that means he the mechanic put something in wrong that caused it...

 

P0103
115 Mass Air Flow Sensor - Above Limit
Diagnosis conditions
• Engine running
• Battery positive voltage greater than 8 V
Possible fault cause
♦ Intake air system on pressure side (between turbocharger and
engine) leaks
♦ Short circuit to B+
♦ Mass air flow sensor faulty
♦ Throttle jacking unit faulty

P0236
Are you sure about this one? OBD manual in WSM doesn't recognize it...There's P234, P237 & P238 though.

P1136
440 Pressure Comparison Charge Pressure - Ambient
Diagnosis conditions
• Engine started
Possible fault cause
♦ Charge pressure sensor
♦ Ambient pressure sensor
♦ Wiring harness

P1109
Input variables, charge measurement - above limit
Diagnostic conditions
• Engine running
Possible cause of fault
♦ Heavily soiled throttle
♦ Throttle adjusting unit faulty
♦ Mass air flow sensor faulty

5525
Torque transmission from the DME disturbed at times
Diagnostic conditions
• Engine running
• Fault is sent by the DME control module via the CAN
Possible cause of fault
♦ Fault in DME

Three of these faults are connected in a way or another to the MAF.
So, are you sure that you have really operative MAF? And the air cleaner ( which type? ) doesn't blow it? Is the tune designed for that MAF? For example the tune is for Hitachi/Ford MAF and you still have the original Bosch unit there? Or vice versa.
Which tune?
Is the wiring loom in engine compartment undamaged? I'd start with checking connections of boost pressure sensor, throttle body and MAF.
Do you have OEM throttle body or some bigger one?

EDIT: Which OBD reader do you use? This because a generic OBDII explanation for P0236 is:

Description of OBD II Fault code P0236

TURBOCHARGER BOOST SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM
Possible failure of OBD II Fault code P0236

• P3 Sensor output Higher of Lower than expected
• P3 Sensor output stuck

This could mean that you have a faulty pressure sensor. Possibly damaged during parts change. Maybe.

 

Hi Markski,

The Porsche Mechanic told me that did a leak test and didn´t find any leak. I don´t know the PSI? I do not believe in him!!!!!

I will try find a good mechanic, but is not easy here!

Thanks...

 

Hi,

Three of these faults are connected in a way or another to the MAF.
So, are you sure that you have really operative MAF?
The MAF is OK, I try a another new.


And the air cleaner ( which type? ) doesn't blow it? Is the tune designed for that MAF? For example the tune is for Hitachi/Ford MAF and you still have the original Bosch unit there? Or vice versa.
The MAF is original bosch. I have a BMC air filter for a long time without issues!

Which tune? The tune is from a great company Portuguese (Almeida&Lamas).

Is the wiring loom in engine compartment undamaged?
All the cables appear to be OK. The MAF cable was tested. No problem detected,.

I'd start with checking connections of boost pressure sensor, throttle body and MAF.

Do you have OEM throttle body or some bigger one?
Yes, I have a AP Plenum with big throttle body.


EDIT: Which OBD reader do you use? This because a generic OBDII explanation for P0236 is:
The mechanic use the oficial diagnostic tool from Porsche

Thanks,

 

Hugo ask CR7 he solves everything

 

the problem is usually during the installation of:
"Yes, I have a AP Plenum with big throttle body."

If you dont do a leak test you never know...

Tell your mechanic Ill bet him that thats where one of his issues is... seen it many times... he needs to do a pressure test not just a smoke test.. most of them do not have the simple pressure test kit to do it they never bother...
Pay him again so you see for yourself.. if a leak shows up he pays you.. lol

 

Check that the MAP sensor is also OK. http://almisoft.ru/files/bosch_map.pdf
Bosch 0 261 230 042 IIRC

 

Hi Markski,

The mechanic will go install the stock plenum.... Let's see if errors disappear.

Thanks for all your collaboration. You are a nice guy.

 

Ni thats the Wrong thing to do...

all he needs is to do this...... this test passes and you probably get rid of most of your codes...

 

Hi,

The MAP has been changed and the error continue!!!!

 

Hi Vic, i just stumbled on this thread of yours & read 2 pgs of posts from many knowledgeable longtime vendor/members here all pointing to boost leaks as i also replied to your email 1mth ago as culprit. Sorry to see u still frustrated & problem not solved yet.

Call around for a more legit/experienced porsche tech. certified shop in Portugal to do boost leakdown test asap. Too bad you're not in US or in Chicago otherwise Marski would of help solved issue long ago.

None of these codes before install & haven't done or know how to check boost leaks= your mechanic failed. Get to another shop or buy Marski's leak tool. GL..

 

The mechanic told me that can solve the problems!!!!

I picked up the car to my garage and started verify all the house connections and clamps and the wastegates.

I found:

- One wastgate blocked = overboost error P1250, the car entered in safemode!!

- The throttle body clamps were damage = MAF error P1103 / P1109!! I found more 3 turbo hose clamps damaged!!!

- The intercooler out side hose was just one part fixed. The up side hose is released = error P5525.

I repair these problems and drove 40 km. After, I connect the durametric cable and checked that there were no errors recorded
Finally with the help of all of you I can solve the problems.

Thanks to every one, especialy to MARKSKI (911 tuning.com), one of the the best Porsche Mechanic...

My next upgrade will be the clutch and probably the intake- 2.5".

Best Regards
VS