2004 chevy 2500HD Truck OBD2 trouble code P0101

Hi Rickey,here's a link on your P0172 code and the causes. P0172 OBD II Trouble Code System Too Rich Bank 1 YourMechanic Advice

Here's a link for code P0101, http://repairpal.com/OBD-II-Code-P0101 Here's the link for code P 0300. P0300 OBD II Trouble Code If you fix code P0101,the other code will be fixed.Here's a new part. http://www.autozone.com/engine-management/mass-air-flow-sensor/cardone-reman-mass-air-flow-sensor/nissan-datsun/sentra/2006/4-cylinders-c-1-8l-sfi-dohc/946979_0_0

You need a dealer, there is a real problem going on here, way over the head of any home do it yourselfer. The main reason is the special tools required to interface with the control modules that are throwing these codes

Mass air flow or MAF sensor.Here is a link that may help you. http://www.obd-codes.com/p0101

P0101 Mass or Volume Air Flow Circ Range/Performance 16485
TSB Number: 3068 NHTSA Number: 10009606 TSB Date: n/a Date Added to File: October 8, 2004 Failing Component:Engine And Engine Cooling:Engine:Gasoline:Turbo-Charger Summary:Oil seepage from turbo air charge cooler hoses or hose blowing off during acceleration. Possible diagnostic trouble code P0299. Updated 04-24-07.there you go good luck

this code is a generic code and doesnt exist on this year. you will need to use a better scan tool to get the correct code, it may or may not be a egr code,

Check your catalytic converter, good chance that it has broken apart and is blocking exhaust flow. Common Chevy 4.3L Issue.

Hi:
to figure out what is going on with your truck, you need to have someone with an OBD2 scanner read your codes to see what is tripping the light. A gas cap is a usual suspect, but there are hundreds of other things too. Auto parts stores, like Autozone, will usually read your code for free, and tell you what is going on.

Go tothe libary and get one there your problem is the locking hubs are sticking and need to be lubed.

Go to this page/link

http://westersgarage.eidnet.org/obd2.doc