Bought, wrecked, rebuilding a 2009 LMM

malibu795

malibu795

misspeelleerr
Apr 28, 2007
9,212
1,456
113
44
in the buckeye state
Procrastinating and finding more things to spend $$ on.. vs working on my wagon🤦🏻‍♂️🤣

Sent couple emails off to see what it would run me to modify a s300 comp housing to accept the LMM intake horn
That way I can run this on the S300.. as IDK if I can get a new compressor housing for a GT4088R
hspdiesel.com

HSP Diesel Cold Air Intake Bundle for 2007.5-2010 Chevrolet and GMC LMM Duramax | Shop Today

Learn More About The HSP Diesel Cold Air Intake Bundle for 2007.5-2010 Chevrolet and GMC LMM Duramax From HSP | Shop Now
hspdiesel.com hspdiesel.com

IMG_20260314_115047686.jpgIMG_20260314_120358317.jpg
 
malibu795

malibu795

misspeelleerr
Apr 28, 2007
9,212
1,456
113
44
in the buckeye state
Well found out smeddling diesel machines s300 to fit oem intake horn.

In other news, my LMM decided to randomly shut off at 75.. just the engine, trans stayed in lockup, costed to the berm.. got crank no started
Only new code is P0606 PCM code cleared it.. crank no starts for 15 minutes then tried again fired up ran like nothing happened 🤦🏻‍♂️
 
1FastBrick

1FastBrick

Well-known member
Dec 1, 2016
3,304
1,616
113
Junkyard
DTC P0601, P0602, P0606, P060B, P061C, P062C, P062F, OR P2610 (ENGINE CONTROLS AND FUEL - 6.6L)
Document ID# 1868037​

DTC P0601, P0602, P0606, P060B, P061C, P062C, P062F, or P2610​

Diagnostic Instructions​

DTC Descriptors​

DTC P0602: Control Module Not Programmed

DTC P0606: Control Module Internal Performance

DTC P060B: Control Module Analog to Digital Performance

DTC P061C: Control Module Engine Speed Performance

DTC P062C: Control Module Vehicle Speed Performance

DTC P062F: Control Module Long Term Memory Performance

DTC P2610: Control Module Ignition Off Timer Performance

Description​

These DTCs apply to internal microprocessor integrity conditions within the engine control module (ECM). This diagnostic also addresses if the ECM is not programmed.

The ECM monitors its ability to read and write to the memory. It also monitors a timing function.

Conditions for Running the DTC​

  • P0602​

  • The ignition switch is ON.
  • The controller is identified as a service replacement ECM.

  • P0606​

  • The ignition switch is in Run or Crank.
  • The power take-off (PTO) is inactive.
  • The cruise control is inactive.

  • P060B​

  • The engine speed is more than 650 RPM.
  • The ECM is powered up.

  • P061C​

  • The ignition is ON.
  • The engine speed is less than 1,300 RPM.


P062C​

The ignition is ON.





P062F​

The ignition is ON.





P2610​

The ECM is powered up.



Conditions for Setting the DTC​

  • P0602​

  • The ECM has not been programmed at Key On and Engine Off for 0.1 second.
  • This diagnostic runs continuously.

  • P0606​

  • The ECM detects a microprocessor undervoltage or overvoltage condition.
    OR
  • The ECM detects an internal bus communication error.
    OR
  • The ECM detects an internal clock error.
    OR
  • The ECM detects an internal injector control error.
  • All tests run in less than 1 second.
  • This DTC runs continuously.

  • P060B​

  • The ECM detects an incorrect internal analog/digital (A/D) signal for less than 1 second.
  • This DTC runs continuously.

  • P061C​

  • The ECM detects that there is a difference between the CKP engine speed and the calculated engine speed of more than 320 RPM for less than 1 second.
  • This diagnostic runs continuously.

  • P062C​

  • The ECM detects a fault in the ship that calculates redundant vehicle speed for more than 1 second.
  • This DTC runs continuously.

  • P062F​

  • The ECM did not complete the last electronic erasable programmable read only memory (EEPROM) write event during the last ECM power down.
  • This diagnostic runs once per ignition cycle at power up.

  • P2610​

  • The ignition off-timer is less than 0 second.
    OR
  • The ignition off-timer is less than 5 seconds for more than 10 seconds.
    OR
  • The ignition off-timer is unchanged for 60 seconds.
    OR
  • The ignition off-timer is not incrementing in 1-second intervals.

Action Taken When the DTC Sets​

  • DTCs P0602, P0606, P060B, P061C, P062C and P062F are Type A DTCs.
  • DTC P2610 is a Type B DTC.

Conditions for Clearing the MIL/DTC​

  • DTCs P0602, P0606, P060B, P061C, P062C and P062F are Type A DTCs.
  • DTC P2610 is a Type B DTC.

Reference Information​

DTC Type Reference​

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Circuit/System Testing​

  1. Observe the DTCs with the scan tool.
  2. If DTC P0602 or P062F is set, attempt to program the ECM before replacing the ECM. Refer to Service Programming System (SPS).
  3. If DTC P0606 was set while performing SPS Programming, clear the DTCs and exit the diagnostic.
  4. If DTC P0606 was set with DTC P0851 or P0852, first go to Diagnostic Trouble Code (DTC) List - Vehicle.
  5. Test the voltage and ground circuits to the control module for the following:
    • A short
    • An open
    • High resistance
  6. Note: DTC P2610 can be set with a loss of battery voltage to the ECM. Disconnecting the ECM with the ignition ON or an intermittent condition in the Battery Positive Voltage circuit at the underhood fuse block will set DTC P2610.
  7. If DTC P2610 is set, turn the ignition OFF and then completely disconnect the ECM harness connector from the ECM for approximately 1 minute. Reinstall all of the ECM connectors and then clear codes with the scan tool.
  8. ⇒XIf DTC P2610 resets after code clear, test for an intermittent condition in the Battery Positive Voltage circuit at the underhood fuse block connector X2-D3.
  9. Replace the ECM.

Repair Instructions​

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for ECM replacement, setup, and programming
 
Chevy1925

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
23,033
8,045
113
Phoenix Az
malibu795 said:
Well I'm NOT telling IT that, it hasn't acted up since and that was ~400 miles ago



Doesn't at all, surprisingly. Crowns slopes are noticable though, that's over the last 2500-3000 miles
Click to expand...

Based on that caster, that thing should be going right on flat ground and even worse right on a crown… unless you live in europe lol
 
J

jlawles2

Well-known member
Jan 28, 2010
1,119
64
48
Danbury, TX
I wonder if you had a security system glitch? Niece had a vehicle with a bad security module that would shut off randomly while driving. Luckily she could immediately restart and usually make it to destination without further incident.

Only found it by luck and having her immediately look at the dash. (We lived 300 miles apart at the time) Dealer could not find issue until the tech was in the car with her one day and it died almost resulting in them getting broadsided. Pulled it into the bay without killing it and saw a non stored security code in the system. Upon key cycle the code disappeared.
 
malibu795

malibu795

misspeelleerr
Apr 28, 2007
9,212
1,456
113
44
in the buckeye state
Got quite a bit knocked out on my 75 K20
including a run to jegs got old fuel lines pulled new lines ran, external electric fuel pump with 40M pre filter, and 4M post filter(wix 33481), added a return bulkhead fitting to the tank.
Need to install an ECT sensor.. either I do it this way(same Idea as the EGR delete coolant line) or drill tap a spot in the coolant cross over on the flat spot🤔🤔

Still need to mount ECM, route harness fix couple exhaust leaks that's directly upstream of the O2 sensor.
Prefilter a6n pump will go In-tank once I get a suburban tank mounted.
IMG_20260404_212744974.jpg
IMG_20260404_211539587.jpg
IMG_20260404_123537415.jpg
 
J

jlawles2

Well-known member
Jan 28, 2010
1,119
64
48
Danbury, TX
Is there a drilled and tapped port into the water jacket on the side of the block near the casting plugs? It's been a while since I was around a block to remember all of the ports.
 
malibu795

malibu795

misspeelleerr
Apr 28, 2007
9,212
1,456
113
44
in the buckeye state
jlawles2 said:
Is there a drilled and tapped port into the water jacket on the side of the block near the casting plugs? It's been a while since I was around a block to remember all of the ports.
Click to expand...
See pictures in post #955😉
Yeah there's a blank spot that can be drilled tapped right next to the bypass going to the water pump
 
J

jlawles2

Well-known member
Jan 28, 2010
1,119
64
48
Danbury, TX
I was thinking more along the lines of an actual pre tapped hole in the block side say between cylinders 1 and 3 not in the intake or heads.
Is that a mechanical water temp sensor on the other side? Is it hooked to anything?
Temp-Sensor.jpg
 
malibu795

malibu795

misspeelleerr
Apr 28, 2007
9,212
1,456
113
44
in the buckeye state
jlawles2 said:
I was thinking more along the lines of an actual pre tapped hole in the block side say between cylinders 1 and 3 not in the intake or heads.
Is that a mechanical water temp sensor on the other side? Is it hooked to anything?
View attachment 135237
Click to expand...
Yes that's a mechanical temp gauge, the FAST system monitors it, but you can only see it if the hand held display is connected

Ultimately I'm duplicating this .. this the a on/off temp switch I use to control the electric fans on my Malibu wagonIMG_20260405_194202954.jpg
 
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