I keep getting this darn code! I have replaced maf, map and icp sensors. Replaced the map hose and cleaned the hole but this darn code won't go away. Most of the time it's a soft code but when the cel comes on it goes into limp mode. I'm guessing the only other option is the turbo. It gets boost at all the right times. And exhaust back pressure seems good. The only concern I have is when the truck is warm I can hear the turbo but when I first start it it takes a good 5 min for it to kick in. Is that a sign of dirty veins? Or a bad vgt solenoid? How much does a typical cleaning cost?

130k
New tyranny
Studded
4" straight pipe
New fluids

 

I didn't do a relearn after icp install would that be anything. Thanks!

 

$130 for the kit and about 4 hours of your time. Dealer will tell you $600 or just buy a new turbo.

Have you checked the Y-pipe for a leak? Cleaned the EBP sensor?

Dirty vanes, broken solenoid.
What are the live readings for EBP, MAP, BARO, VGT?

Probably not the ICP sensor, no relearn needed.

 

I'll take note of the readings when I drive him tonight. I thought the new ecu update stopped it from reading the EBP? What's the best way to check leaks on the Y pipe?

 

look for soot build-up.

 

Yup, P132b was a new code included in the inferred EBP flash. Here's some more info:


Inferred EBP Description
06E17 for 2003 & 2004 MY 6.0L F-Series, Excursion built to 9/29/2003 eliminates use of EBP sensor.
Exhaust Backpressure is now “Inferred” through MAF, MAP, BARO, and EOT

Adaptive Turbocharger Description
Adaptive Turbocharger Learn
! The turbocharger exercised over the full duty cycle 15-85% while the PCM samples MAP.
! Runs at idle at certain conditions.

Learn Feature Entry Conditions
"Engine Oil Temp (EOT) from 120o-250oF (50o-120oC)
"Idle speed from 570 to 780 rpm "Vehicle Speed (VSS) stopped
"Pedal position (APP) below 1.5% "EGR is commanded off (EGR DC = 0)
"No DTCs for critical sensors/actuators MAP / EOT / MAF / BARO / VGT are present

Turbo Learning State
How to Determine if Learn cycle is Complete
• VGTVP_LE - number of learn cycles
• VGTLRN_OK = Yes - When 5 learn cycles have completed (VGTVP_LE > 5).

Enhanced Diagnostics
2 new fault codes P132B and P006A
! Issues with turbocharger, MAF sensor, MAP sensor/hose, intake leaks, exhaust leaks, etc.
! Updated diagnostics in on-line PC/ED.
! These DTC’s may be generated right after 06E17 Reflash. (SSM 19141)

Enhanced Diagnostics – P132B
P132B can be set by 3 methods
1. MAP (boost) levels. (P132B_STK)
2. Continuous boost monitor checks boost vs.
VGT_DC. (P132B_CM)
3. Excessive number of learn cycles (P132B_VAR)

Enhanced Diagnostics – P132B
P132B fault code diagnosis
! Before replacing a turbocharger please perform the 2003.25 MY KA pinpoint test to verify the root cause.
# Do not skip any steps in the KA test
! If you have a P132B code, the PCM will continue to cycle the turbocharger full range (15 to 85%) to try to break it loose.

Enhanced Diagnostics – P006A
P006A is a new MAF fault code.
! Monitor does not run at idle
! PCED Pinpoint Test J for P006A
! Critical to check for intake leaks between MAF sensor and intake manifold
! Verify EGR valve is not stuck open

06E17 – EBP Sensor
Note:
After reflashing 06E17, the EBP sensor is not used in the vehicle Powertrain anymore. Do not remove or replace the EBP sensor unless:
! Vref intermittent connection or Vref short
! Smoke test Exhaust (ensure tube is not plugged)

 

Ok thanks! If there is a leak would that be the clamps?

 

When I'm idling the turbo doesn't stop cycling. Is this an indication of the turbo?

 

It could be. How long does the fault stay cleared? It shows 3 methods of setting. Map (boost) low, boost vs VGT DC, and excessive learn cycles. If it takes a while to return it may be the learn cycle issue, see conditions above. If it returns quickly watch map (is it reading normally) and MAP vs VGT correlation. Note it will cycle the turbo 15-85% if the code is set so you might see that an think it's a problem. I think part of the KA for this code is using the smoke machine on the exhaust.

 

It comes back immediately. Except after I replaced the map it went away for about 50 miles.

 

The math adds up with map/baro/boost. What's the correlation with map/vgt supposed to be?

 

Stuck turbo appears to be a possible cause, the cycling is an attempt to break it free. If it is winding up and down full sweep it's probably not stuck.

 

It goes full cycle I can feel the stares of angy people at atop lights

 

Map should increase as VGT increases and follow it back down. It may lag behind a bit bit but should follow.

 

Almost 100% positive it does but then again I never thought to monitor. If it looks OK would it be narrowed down to intake/exhaust leak?