duramax lb7 mass air flow sensor problems

Turbo boost trouble codes may also be found.

The incorrect calibration will induce a DTC P0101 and excessive exhaust smoke. A Cylindrical Air Cleaner Housing Calibration ID # 25779295.A Rectangular Air Cleaner Housing Calibration ID # 15879103.The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.Īfter programming the ECM on a 2004-2005 Duramax Diesel, a DTC P0101 may set right after start-up, or while driving.ĭuring a ECM replacement, or a calibration software update, there is a selectable engine calibration. what should i do now i am at a loss this has been a plague for more then a year, the truck drives fine and has no problems, flawless really with 65,000 miles and always serviced with care, this is killing me beacuse no good engine tune would have error codes right? somebody help me please!!!!Įquipped with a 6.6L Duramax Diesel RPO code LLY I have a 04 duramax with k&n air filter open tube type element attached to stock air tube homegrown modd it worked awsome and noticed alot more air flow, then i changed out muffler to a flowmaster single chamber for more free floaning exhaust, then i added a hyperteck programer tuned to max 90hp setting, and the gains were amazing, but now i keep getting a error code p0101 code and sometimes a p0103 code on my hyperteck scan mode i looked up the codes on the net and said it had to do with mass airflow sensor range performance problems, i did as smany sites stated, cleaned the airflow sensor, cleaned out the K&n filter, because it may have been overoiled and lightly lubed it, cleaned the mass airflow sensor over 8 times with eltronic circuitboard cleaner, and still the codes come up, i notice that when i freshly clear the codes and go for a quick run down the road it has a bit more power then when the codes are flashed into the ecm, now even in stock setting with no programer installed i still get the error codes.

Duramax lb7 mass air flow sensor problems