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Fault code P00BD M.A.S Air Flow High

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Fault code P00BD M.A.S Air Flow High

Postby Darkskies » Tue Feb 17, 2015 9:25 pm

Problems started with a frosty cab, I use a small 240V fan heater to defrost and warm up for a few minutes, it sits on middle seat facing forward, dash does not get unduly hot from airflow. Unusually the alarm went off, unlocked and relocked the van and went off for half an hour, during which the alarm went off again and was unlocked / relocked. Four hours later went out in the van the Powertrain light came on. After two stop / starts it went out, drove 2x30 mile journeys no warning lights. Next day Powertrain light came on after 5 mins with loss of power, the next day both Powertrain and Engine management lights came on so it was taken for diagnosis. Local garage got Fault code P00BD M.A.S Air Flow High so ordered a non Ford sensor and fitted it. Fault code still came up, so they ordered a Ford one, fitted and reset code. No change, literally drove from garage today for 5 mins and Powertrain light came on, followed by Engine management, and,loss of power at 50mph. Vehicle has been serviced annually by local garage, now done 26000 miles. Local garage thinks it needs to go to a Ford dealer for a software update. Any suggestions / solutions from experienced owner / maintainers would be welcome.

Needless to say I'm disappointed, bought this new hoping to get a few trouble free years before it started being faulty.

Build Date: 12.06.2012 260S Series 2.2L CR TC I4 DSL 100PS 6-Speed Manual Transaxle - VMT6
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Re: Fault code P00BD M.A.S Air Flow High

Postby ake » Tue Feb 17, 2015 9:58 pm

That should still be under warranty so take it to a Ford dealer.
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Re: Fault code P00BD M.A.S Air Flow High

Postby Darkskies » Wed Feb 18, 2015 7:20 pm

Thought only had a 1 year warranty, dealer tried to sell me add ons at point of sale which we turned down. Bad enough it came without any handbooks or evidence of PDI, all we had was a bill of sale. Managed to get handbooks and service book a month later after threatening legal action against dealer - all they are interested in is selling, tried to sell us a new van after a year! Taken to another Ford dealer today who'll have a look at it next week but says on evidence presented EGR fault. Is this a common occurrence? This happened on our last van at 130k when it was ten years old, not expecting at 26k and 30 months old.
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Re: Fault code P00BD M.A.S Air Flow High

Postby knobby1 » Thu Feb 19, 2015 4:10 am

Some years ago we had one of our brand new work Transits, (2009 model 140ps), throw an EGR after only 1200kms...was replaced under warranty and has been fine ever since, that same van now has 107,000kms on it and still going strong.

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Re: Fault code P00BD M.A.S Air Flow High

Postby Darkskies » Sun Mar 01, 2015 10:23 am

Turns out not to be the EGR but the Air Inflow Sensor. Despite the fact that we do not have evidence of the vehicle having had a PDI inspection, nor a dealer marked service book to validate the warranty, and to quote the Ford dealer 'it has been interfered with by a third party', we were allowed the cost of the AIS and labour under Ford warranty. So far, three days after repair, there is no loss of power, and no warning lights on. My conclusion - don't buy and drive away a new van without checking and insisting that all the paperwork is present and correct. I've worked out if we get this through the mot in June, sell it and increase our hourly labour rate by £2.50 we can hire a van saving us depreciation, insurance, road tax, servicing bills, get free recovery and a replacement when it breaks down, so why do I bother with the hassle of owning a van or car for that matter!
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Re: Fault code P00BD M.A.S Air Flow High

Postby Darkskies » Tue Mar 24, 2015 8:42 pm

Wrote to Ford complaining about misleading fault code, girl at Ford who replied evidently hasn't read letter properly and has no technical skills as just said should have gone to a Ford dealer. Replied to that saying read the letter properly and got another reply in a similar style. Ford evidently don't care about their reputation or UK/EU law, no surprises there. Fuel filter light came on today and drained a pint of water out of it, unlikely it'll catch fire with all that water in it!
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Re: Fault code P00BD M.A.S Air Flow High

Postby martynx » Thu Mar 09, 2017 6:15 pm

What (& where) , is an Air Inflow Sensor?
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Re: Fault code P00BD M.A.S Air Flow High

Postby knobby1 » Thu Mar 09, 2017 11:57 pm

martynx wrote:What (& where) , is an Air Inflow Sensor?


I'm guessing he means the MAF sensor Martyn..

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FIXED - - - - Re: Fault code P00BD M.A.S Air Flow High

Postby martynx » Fri Mar 17, 2017 2:06 pm

My customer with exactly the same issue on his Euro 5 100ps found evidence of a what could be a small leak on the intercooler , ( damp patch) he replaced the Intercooler & now the fault is fixed. Another tech suggested to look for a leak on the pipe from the intercooler to the manifold at a common chafe point - So it looks like that fault could be air leaking after turbo but before manifold boost sensor results in the MAF sensor seeing slightly too much air & setting the fault. There was no noise like an whoosh or air leak on this van i saw so it must be a very sensitive set of parameters the ECU is working on if thats the case. & the damp patch as pictured could easily just be from a badly seated temp sensor ( The green one pictured ) however the customer replaced that sensor some days earlier & fault was still present. :!: Will update further if its not the case / fault returns.
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Re: Fault code P00BD M.A.S Air Flow High

Postby Jonrover » Fri Sep 01, 2017 10:19 pm

Hi , I have a transit custom with the same problem , the fault code is saying the air flow is too high and within about 5mins of driving it goes into limp mode. Have replaced the airflow sensor but it hasnt made any difference, just wondered if you had got to the source of the problem??
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Re: Fault code P00BD M.A.S Air Flow High

Postby Philhutchinsin123 » Wed Feb 28, 2018 10:34 pm

I have a ford custom 2014 plate, 2.2 55000 miles,I to had problem with engine management light coming on followed by an intermittent engine malfunction warning sign coming on then closely followed by a loss of power ,I know now the engine was actually going into limp mode! I bought the van privately, so unfortunately had no warranty, I took it to my local garage they done the diagnostics on it and it came up with the mas air flow sensor fault, they changed that but did not make any difference to the problem! They had the van for 3 day and couldn't find the fault, very frustrating! Eventually though my macanic they booked it into a auto electric specialist , they found the problem, not straight away I may add! But it turns out that it was an air intake temparture sensor to blame, they replaced that and gave software update to the engine E.c.u , as well as replacing the air filter! I got the van back and I'm over the moon , it seem to pull a lot better now and tick over quieter! Hope this may help with simler problems out there, cos as I found there plenty of familiar problems but not any solutions! phil. Durham, England.
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Re: Fault code P00BD M.A.S Air Flow High

Postby charlievarle » Thu May 24, 2018 12:49 pm

Hi Phil
Can you let me know the auto electricians you used as I have the same problem and am in Great Lumley !
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Re: Fault code P00BD M.A.S Air Flow High

Postby vanali » Tue Jan 22, 2019 9:16 pm

I know the last post was almost a year ago but I have the same fault on my Transit (2013 Tdci)

My van gave no indication of the fault but it was off the road for 2-3 weeks as the mot had expired, the evening prior to mot (last Thursday)I had the van ticking over for maybe 20mins while working on the stereo. Next morning going for mot the warning light came on, it was showing an outside temperature of -2 degrees c. When I restarted the van to go into the mot station the warning had gone but came on again on the way home as soon as I was out of the 30mph zone. Got the code via an elm327 and Torque (code P00BD)
I reset the elm light but it came back on again later. What I've noticed is that if I stay below 1500rpm through the gears and in 6th gear the light doesn't come on, even after 12 or so miles, if I rev over 1500rpm it comes on.

I tried cleaning the MAF and MAP sensors but no joy, I then came across the problem on a German forum and the guy said he cured the problem (elm warning, reduced power etc code P00BD) and traced it to the intercooler air temperature sensor. Thinking about it the Air temp sensor is the 1st sensor on the air infeed, next is the MAF, I've noticed a few people have had the problem occur in colder weather (as I have) and wondered if cold air being denser the MAF needs to know the air temp to accurately calculate volume/mass airflow, a faulty air temp sensor would cause any further sensor (maf/mas) to miscalculate. I tried cleaning the airflow temp sensor, (mounted on the outflow pipe of the intercooler just behind the front bumper (green sensor (newer ones are black and shorter) as shown in the pic above with 2 wires, held in place with a T27 torx screw) but it didn't cure the problem. I'll try a new sensor and see what happens, I did phone the dealer who asked if I'd had the van ticking over for a long period and then switched off without driving it, I had as I mentioned. Anyway I'll fit a new sensor and update here as and when.
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Re: Fault code P00BD M.A.S Air Flow High

Postby vanali » Sat Jan 26, 2019 3:18 pm

This is just a follow up to my previous post re. Generic Fault Code P00BD, detected using a Bluetooth ELM327 combined with the Torque App.

The Fault showed up 1st as a Dashboard Message (Red Exclamation Mark! Powertrain Malfunction or words to that effect), the ambient temperature as displayed on the dash was around freezing. I also on one occasion had the Yellow Engine Light Displayed. I cleared the Fault Codes and although the Yellow Engine warning didn't reappear the fault did come back and I still had the warning message. Each time the fault occurred the van went into limp mode, poor throttle response reduced power etc.

As I mentioned I tried cleaning the Intake Temperature Sensor but that didn't solve the problem, I should point out that I'd already tried cleaning both the MAF and MAP sensors.

I ordered a new Intake Temperature Sensor, Genuine Ford Part, Air Charge Temperature Sensor - 2006019 which I fitted this morning, the one I received was green just like the old one, I paid £18 inc postage, I've read that there is also a slightly different (Shorter) Black version. I've just had the van out for 2 short runs (10 miles or so each time) and the fault seems to have been cured. For what it's worth ambient temperature was around +8 degrees.

If you happen to get this fault.
Engine Malfunction ! Warning Message- Powertrain Fault - (with or without the Yellow Engine warning)
Find Generic Fault Code - P00BD - Mass or Volume Air Flow "A" Circuit Range/Performance - Air Flow Too High(Using the Torque App, not sure if it would be a different code using Forscan or ids)
And possibly if the ambient temperature is around Freezing

Try a New Air Charge Temperature Sensor
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Re: Fault code P00BD M.A.S Air Flow High

Postby 0ag1 » Sat Mar 09, 2019 9:31 am

i had same problem.changed the air charge temp sensor and all seems fine again..£17 for a genuine ford part..it happpened on a frosty morning aswell
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