Hummer H2 Ecm Location. All parts sold by Advusedparts LLC bear a permanent identification mark and we will not take any part back if this mark is missing or altered in any way. If these are the only two codes present fixing what is causing P0031 will more than likely clear the P0171.
2004 Hummer H2 ECM ECU PCM Engine Computer. All modules are VIN programmed flashed and updated with the latest dealer software to improve drivability and fuel mileage. Posted to GM Brakes on 8102006 4 Replies.
Fuse box diagrams location and assignment of electrical fuses and relays Hummer H2 H2 SUT Truck 2002 2003 2004 2005 2006 2007.
HUMMER Car Manuals PDF above the page - H1 H2 H3. P0031 is most often not accompanied by any noticeable symptoms as long as it is the only code that is currently stored in the ECMs memory. While it remains standard practice to only modify the factory GM fuel-delivery curve. Replacement OEM Engine Computer ECMECUPCM for a 2006 Hummer H2.
