LB7: P0101p tried everything. Stumble at idle, shifts, EGR solenoid diagnostics? - Diesel Place : Chevrolet and GMC Diesel Truck Forums
 
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Duramax First Generation: 2001-2004 (LB7) Discuss the first generation (2001-2004 LB7) of the 6.6L Duramax diesel engine & associated components. Engine related discussion ONLY.

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Old 09-18-2015, 11:31 AM   #1 (permalink)
bhollehday
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Join Date: Aug 2015
Location: Fullerton, CA
Posts: 26
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P0101p tried everything. Stumble at idle, shifts, EGR solenoid diagnostics?

I have tried everything. All stock besides KNN FPIK intake, Bully dog air head, Cat back exhaust. Tried puting stock intake and resonator on, Clean Maf, New Maf, new EGR valve, all IC pipes for leaks, boost leak down tested, reflashed ECM and trans.

My symptoms are it will vrrrvrrrvrr (sound of rpm slightly "surging" ..I guess?) around idle. clear ECM and P0101 will stay off until about about 100 miles of driving, then it comes on pending, and throws a code once the "EGR readiness" goes from not ready to no. Im pretty sure something is wrong with the EGR, but need some advice on how to figure out which sensor is the issue.

I havent tried putting stock exhaust back on or ridding of the air head. Might be my last resort, but I don't feel like thats the issue from what ive read. If air head was overboosting, id get that overboosting code.

It also will not consistently, almost shift like the truck has a bad fuel filter on it. It shifts and almosts misses a beat, but drives fine. It has a new fuel filter, new trasn flush, new spin on. I dont think its related but might help idk.

Heres some info that might help anyone trying to help =)

Diesel Place : Chevrolet and GMC Diesel Truck Forums

LB7: Idle stumble and surge caused by EGR opening - Page 2 - Diesel Place : Chevrolet and GMC Diesel Truck Forums

http://www..com/ford-powerstroke-03-...-solenoid.html



This one explains that if P0101, its only tripped by the following:

P0101 code is set for any of the following

-EGR Control Pressure Sensor
-Mass Air Flow Sensor
-Mass Air Flow (MAF) Sensor Performance

The acceptable operating range is,

1.014v to 4.670 v
11 kg/hr to 1620 kg/hr

Reasons for the DTC to set,

-Detects an in range sensor fault.
-It can also detect an open circuit.

LB7 MAF code P0101 need some help..


PLEASE DONT TELL ME TO JUST RIP MY EGR OFF. IM CALI RESIDENT AND NEED TO PASS SMOG ASAP, THIS CODE IS PREVENTING IT.


Last edited by bhollehday; 09-18-2015 at 11:32 AM.
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Old 09-18-2015, 04:31 PM   #2 (permalink)
bhollehday
High Compression
 
Join Date: Aug 2015
Location: Fullerton, CA
Posts: 26
iTrader Score: 0 reviews

Bank Big head Wastegate sorry, not a "bully dog air head" lol

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