mass air flow sensor - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 05-13-2010, 08:01 PM Thread Starter
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mass air flow sensor

hi there im new to the diesel world i have a 2006 6.0l ford f250 ,my son got me an [email protected] cold air intake for my birthday so well installed it,then 3 weeks later my engine light comes on so i take it to the dealer and they said it was the mass air flow sensor,they said it had oil on it,my question is is that normal and will it keep happening if i keep the [email protected] intake on thanks for all the help,also whats a good code reader for that truck .i cant stand takeing it to the dealer to have it worked on thanks
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post #2 of 5 (permalink) Old 05-14-2010, 04:51 PM
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Originally Posted by mach1miles View Post
hi there im new to the diesel world i have a 2006 6.0l ford f250 ,my son got me an [email protected] cold air intake for my birthday so well installed it,then 3 weeks later my engine light comes on so i take it to the dealer and they said it was the mass air flow sensor,they said it had oil on it,my question is is that normal and will it keep happening if i keep the [email protected] intake on thanks for all the help,also whats a good code reader for that truck .i cant stand takeing it to the dealer to have it worked on thanks
I'm not sure about the S&B, But the K&N if over oiled can damage the MAF sensor. I learned the hard way with my wife's car.

As far as code readers, most like to use Autoenginuity software for a laptop or PDA. a.k.a AE

2004 F350 CC DRW King Ranch
X-3 tunes by DJ,QT,GH,ID,Gyphon FICM tuner,head studs,II Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,Snow Perf stage II,EGR delete,AD2,4" turbo back straight pipe,K&N intake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB
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post #3 of 5 (permalink) Old 05-26-2010, 05:02 PM
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Stock filter is best for up to 500hp or so.

2012 F-150 XLT Ecoboost SuperCrew 6.5' 4x4
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post #4 of 5 (permalink) Old 09-08-2010, 07:04 PM
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The MAF Sensor is so easy to clean, it's not worth worrying about. I have a K&N air box and filter. I clean and re-oil the filter, wait 2 tanks of fuel, then clean the MAF Sensor. The Truck will run a little rough until the MAF sensor is cleaned, but, other than that, this procedure works great. After the MAF is cleaned the truck runs great again.
Just pick up some MAF Sensor cleaner from your local parts house, then go home and pull out the sensor, and spray it off with the cleaner. What's so hard about that. It takes all of 5 minutes to do it. You should be servicing your own MAF Sensors for all of your automobiles. The are used on every car these days, as far as I can tell.

06' F250 Mods:

Performance related:
-K&N E-0780 Air Box, ZooDad Mod
-Garrett Powermax Turbo, CFM+ Smallmouth Intake Manifold
-Blue Fuel Pressure Spring, Large fuel lines from pressure regulator to heads
-MBRP 4" Turbo back exhaust; cat installed
-SCT SF3 Tuner w/SRL custom tunes from Matt at GearheadAutomotivePerformance.com

Reliability Mods:
-Refurbished 50 volt FICM, Eliminated STC fitting, upgraded stand pipes and dummy plugs, Bulletproof Diesel EGR cooler, upgraded turbo oil supply and drain
-Oil change rotation; 5k-5W40/5k-15W40/5k-15W40
--Rotella T5 or Valvoline Blue Extreme 5W40, Rotella or NAPA 15W40, Archoil 9100 friction modifier (16 ounces to crank case; 10 ounces to each differential)
--2/3 Qt. tcw3 2 cycle oil per tank Power Service (5 oz. Stanadyne every tank)
-Cooling system flush with Restore and VC-9 @ 73,000 miles w/new thermostat
-Eliminated clunk while sitting at a light (75,000 miles); Lubed rear drive-shaft spline with Ford lubricant; Symptom returned at 100,000 miles...re-lubed at 112,000 miles....wow!! it's so smooth again.

Miscellaneous:
-1/2" shim on carrier bearing mount
-Batteries:
--Original Motorcraft lasted 4 1/2 years
--AutoZone Duralast Gold lasted less than 3 years
---(with 2/0 cables between + terminals)
--Still on 2nd set of Autozone Gold (replaced free)
-Alternator:
--DC Power 185 amp
Future Mods:
-Teflon sway bar bushings
-Moog Ball Joints (originals seem to be holding tight at 108,000 miles; it's just a daily driver, so this seems to make sense)
-Cooling system filter
-OEM HG/ARP studs
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post #5 of 5 (permalink) Old 09-12-2010, 03:10 PM
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I'm going throught the same thing right now with an AFE dry filter. delaer made me remove it and put it back to stock and they replaced the MAF sensor and the P0401 still came on. they also replaced the EGR valve and still get the same code. another member (Harry6.0) suggested cleaning the turbo because the vanes may be sticking. I'm taking it back to the dealer monday and I think this is what they are doing next.... I cleaned the Intake Air Sensor #2 and Ford cleaned the EBP sensor so there is not much left....must be a coaked up EGR system for me.

06' F350
I'm not a Diesel Mechanic or Expert. All posts are just guesstimations.
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