Low Boost Problem
Thread Starter
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Junior User
Joined: Feb 2008
Posts: 90
Likes: 1
From: Goose Creek, SC
I actually have the scanner shown above and I pulled the codes from my truck.
P0102 - Mass or volume air flow A circuit low input. (Assume from unplugging the MAF)
P0113 - Intake air temperature sensor 1 circuit high input (Not sure how this impacts the truck)
P0264 - Cylinder 2 injector circuit low (probably not good, my FICM connectors don't fully click and will loosen and vibrate the truck. Hoping I just need to zip tie this connector)
P0603 - Internal control module keep alive memory malfunction (hoping this is from disconnecting the battery for 10 hours while fixing a coolant leak)
P1000 - Drive cycle test not complete
P132B - Turbo charger boost control A performance (hoping this is from not resetting the computer following the 10 hours battery disconnection)
They all reset except for the P1000. Now time to drive and get her warm and some ICP data.
Appreciate all the help. I'll report back any new codes and ICP data with the MAF plugged in.
P0102 - Mass or volume air flow A circuit low input. (Assume from unplugging the MAF)
P0113 - Intake air temperature sensor 1 circuit high input (Not sure how this impacts the truck)
P0264 - Cylinder 2 injector circuit low (probably not good, my FICM connectors don't fully click and will loosen and vibrate the truck. Hoping I just need to zip tie this connector)
P0603 - Internal control module keep alive memory malfunction (hoping this is from disconnecting the battery for 10 hours while fixing a coolant leak)
P1000 - Drive cycle test not complete
P132B - Turbo charger boost control A performance (hoping this is from not resetting the computer following the 10 hours battery disconnection)
They all reset except for the P1000. Now time to drive and get her warm and some ICP data.
Appreciate all the help. I'll report back any new codes and ICP data with the MAF plugged in.
Senior User
Joined: Mar 2014
Posts: 152
Likes: 0
From: Indianapolis, IN
I actually have the scanner shown above and I pulled the codes from my truck.
P0102 - Mass or volume air flow A circuit low input. (Assume from unplugging the MAF) Correct
P0113 - Intake air temperature sensor 1 circuit high input (Not sure how this impacts the truck) The MAF sensor is also the IA1 (dual)
P0264 - Cylinder 2 injector circuit low (probably not good, my FICM connectors don't fully click and will loosen and vibrate the truck. Hoping I just need to zip tie this connector) noted, keep an eye on this
P0603 - Internal control module keep alive memory malfunction (hoping this is from disconnecting the battery for 10 hours while fixing a coolant leak) Correct. KAM code when batteries disconnected for any time.
P1000 - Drive cycle test not complete This code due to Erase - drive it.
P132B - Turbo charger boost control A performance (hoping this is from not resetting the computer following the 10 hours battery disconnection) Probably not. Usually means Improper Boost for given circumstances (throttle position, etc).
They all reset except for the P1000. Now time to drive and get her warm and some ICP data.
Appreciate all the help. I'll report back any new codes and ICP data with the MAF plugged in.
P0102 - Mass or volume air flow A circuit low input. (Assume from unplugging the MAF) Correct
P0113 - Intake air temperature sensor 1 circuit high input (Not sure how this impacts the truck) The MAF sensor is also the IA1 (dual)
P0264 - Cylinder 2 injector circuit low (probably not good, my FICM connectors don't fully click and will loosen and vibrate the truck. Hoping I just need to zip tie this connector) noted, keep an eye on this
P0603 - Internal control module keep alive memory malfunction (hoping this is from disconnecting the battery for 10 hours while fixing a coolant leak) Correct. KAM code when batteries disconnected for any time.
P1000 - Drive cycle test not complete This code due to Erase - drive it.
P132B - Turbo charger boost control A performance (hoping this is from not resetting the computer following the 10 hours battery disconnection) Probably not. Usually means Improper Boost for given circumstances (throttle position, etc).
They all reset except for the P1000. Now time to drive and get her warm and some ICP data.
Appreciate all the help. I'll report back any new codes and ICP data with the MAF plugged in.
Load DTC into XGauge:
07E0220200
046205020600
3008
000100010000
I expect it to = 1 (P1000, but it won't say)
More that likely, during a 15 second WOT run, it'll change to 2 counts.
After all this, you probably need to do a VGT Re-learn.
Reply after your test drive.
Thread Starter
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Junior User
Joined: Feb 2008
Posts: 90
Likes: 1
From: Goose Creek, SC
ICP readings while warm in neutral:
KOEO - 5
Idle - 640
2500 RPM - 1400
Codes after the test drive:
P1000 still
P132B came back without a full throttle run.
I'm assuming that I will need to try and clean the turbo and reset the computer after I clean the exhaust side.
KOEO - 5
Idle - 640
2500 RPM - 1400
Codes after the test drive:
P1000 still
P132B came back without a full throttle run.
I'm assuming that I will need to try and clean the turbo and reset the computer after I clean the exhaust side.
Senior User
Joined: Mar 2014
Posts: 152
Likes: 0
From: Indianapolis, IN
I'd do a VGT Re-learn next.
Clear codes again
Disconnect batteries for 10 minutes, momentarily short battery leads together (NOT Terminals, unless you want Fireworks).
Reconnect batteries
Key On for 10 seconds, Key Off for 10 seconds - two times
Start and idle for 15 minutes (Park, no throttle) to allow VGT to go through 6 cycles
(You could monitor VGT with SG2 during this time)
Read and Erase codes again (for 0603, KAM)
Another short test drive to check for 132b.
Clear codes again
Disconnect batteries for 10 minutes, momentarily short battery leads together (NOT Terminals, unless you want Fireworks).
Reconnect batteries
Key On for 10 seconds, Key Off for 10 seconds - two times
Start and idle for 15 minutes (Park, no throttle) to allow VGT to go through 6 cycles
(You could monitor VGT with SG2 during this time)
Read and Erase codes again (for 0603, KAM)
Another short test drive to check for 132b.
Last edited by 11jjonn; Feb 21, 2015 at 02:47 PM. Reason: added info
Senior User
Joined: Mar 2014
Posts: 152
Likes: 0
From: Indianapolis, IN
Not just yet.
During the re-learn, it was perfectly normal to see VGT slowly cycle between 85% - 15% (means it was getting commands to fully close & fully open).
Note that these are Command values, Not Actual - but you should have heard the engine vary rpm/pitch.
Next up: Power Brake Boost test.
During the re-learn, it was perfectly normal to see VGT slowly cycle between 85% - 15% (means it was getting commands to fully close & fully open).
Note that these are Command values, Not Actual - but you should have heard the engine vary rpm/pitch.
Next up: Power Brake Boost test.
Senior User
Joined: Mar 2014
Posts: 152
Likes: 0
From: Indianapolis, IN
Again, ECT at 190* (any testing at lower temp is Meaningless)
At this point in time (DON'T DISCONNECT ANYTHING) , how much boost will it build during a full 10 second WOT (Pedal jammed/held to the floor) ???
Should get you up to 65-70 mph.
How does the power/acceleration feel to you ??
Listen carefully, hear any leaks (hissing) ??
At this point in time (DON'T DISCONNECT ANYTHING) , how much boost will it build during a full 10 second WOT (Pedal jammed/held to the floor) ???
Should get you up to 65-70 mph.
How does the power/acceleration feel to you ??
Listen carefully, hear any leaks (hissing) ??
Thread Starter
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Junior User
Joined: Feb 2008
Posts: 90
Likes: 1
From: Goose Creek, SC
With the MAF connected it gets up to about 9 psig by scan gauge and struggles to get there. All I can hear during this run is the turbo spooling up. It feels weak and speed comes up slow. It actually accelerates faster around 50 mph when it gets to third than in the lower gears and that's when the boost gets up to 9 psig.
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Senior User
Joined: Mar 2014
Posts: 152
Likes: 0
From: Indianapolis, IN
Just noticed your xmsn is manual -- makes it trickier.
Takes 2 people (one you Really trust).
With an automatic, apply park brake and brake pedal while in Reverse.
Hold it down while building rpms up to around 2000. This builds Boost.
Run you hand all around the CAC boots and especially check the hot-side input port of the Intercooler. Also, the plastic end cap is crimped onto the metal core - often ruptures - noisy air blows out = Low Boost.
Now sure how to accomplish with Manual xmsn - try a Google search.
My OEM Intercooler was ruptured where I mentioned - I could easily feel the air blast (more than Hear it). Replaced Intercooler = good boost again.
(Also much oily residue around rupture area)
Takes 2 people (one you Really trust).
With an automatic, apply park brake and brake pedal while in Reverse.
Hold it down while building rpms up to around 2000. This builds Boost.
Run you hand all around the CAC boots and especially check the hot-side input port of the Intercooler. Also, the plastic end cap is crimped onto the metal core - often ruptures - noisy air blows out = Low Boost.
Now sure how to accomplish with Manual xmsn - try a Google search.
My OEM Intercooler was ruptured where I mentioned - I could easily feel the air blast (more than Hear it). Replaced Intercooler = good boost again.
(Also much oily residue around rupture area)
Last edited by 11jjonn; Feb 21, 2015 at 04:54 PM. Reason: added info