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Old 12-15-2019, 01:42 PM   #1
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Check Engine light

2013 Ford V10 Triton check engine light

I had the same codes a year or so ago. Took to Ford dealership and they told me I needed an update. They performed the update.

A year later same codes are back.

P2096 - Post Catalyst fuel trim bank 1 system too lean
P2098 - Post Catalyst fuel trim bank 2 system too lean
P2270 - Bank 1 Sensor 2 signal stuck lean

I cleared it out but will probably come back.

Any thoughts or ideas from the experienced?

Dealer did me wrong last year?

Thanks.
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Old 12-15-2019, 02:12 PM   #2
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Have you ever cleaned the MAF?
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Old 12-15-2019, 02:25 PM   #3
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Thanks for the reply.
Sorry. What does that stand for? so by that I probably have not.
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Old 12-15-2019, 02:35 PM   #4
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MAF Mass Air Flow sensor , in air cleaner snorkel , watch Youtube on it
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Old 12-15-2019, 02:38 PM   #5
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MAF....Mass Air Flow sensor.

It basically measures the amount of air going into the engine and helps control the air to fuel mixture. If that mixture is not correct the O2 sensors will notify you by a check engine light.

I fought a similar problem and replaced the O2 sensor which did not help. I then cleaned the MAF and it cured the problem.

The MAF is located right after the air cleaner in your engine compartment.

I'd suggest cleaning it and replacing the air filter. Use MAF cleaner available at auto parts stores. About $10.

If you have a K&N air filter do NOT over oil it as the oil will contaminate the MAF.
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Old 12-15-2019, 03:30 PM   #6
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MAF

I found several videos and reviewed them. I will go get some CRC mass airflow sensor cleaner and give it a try in the next week or so.

Thank you for the idea.
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Old 12-15-2019, 03:41 PM   #7
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Quote:
Originally Posted by Adam1219 View Post
I found several videos and reviewed them. I will go get some CRC mass airflow sensor cleaner and give it a try in the next week or so.

Thank you for the idea.
Keep us undated, inquiring minds would like to know.
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Old 12-16-2019, 02:35 PM   #8
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If no vacuum/ PCV air leaks, (suspect, not sure) I would install new fuel filter and O2 sensors and see if codes return? (Unless sensors high $$?). Clogged FF might cause both backs to go lean at higher demand?
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Old 12-17-2019, 08:42 AM   #9
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re: "what does that stand for?"... Google is your Friend :-)
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Old 01-19-2020, 09:30 AM   #10
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Cleaned the MAF

Per the advice above I purchased the Mass air flow sensor cleaner and a set of security allen wrench type bits. I reviewed several u-tube videos. I located the sensor and removed it. It looked nothing like any of the sensors I saw in the videos even though the videos were all Ford products. I sprayed the area where the wire was located at the bottom. I sprayed it from the air in side. I re-installed it.

I have attached a few photos as this sensor only had one wire and all of the sensors I saw in the videos all had two.
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Old 01-19-2020, 10:51 AM   #11
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Just to be clear, the little "bulb" circled in red is the actual sensor element.

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My gut says you have a vacuum (air) leak. "Pirate" air is being sucked into the intake somewhere AFTER that sensor. Could be a dozen different places. Cracked/brittle vacuum hose, PCV valve/grommet/hose, any gasket between part of the intake manifold.

The "old" mechanics trick is, while the engine running, spray carburetor cleaner around all of the suspect location. If the engine speeds up, it is because is sucked in the cleaner and you have found your air leak.
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Old 01-20-2020, 06:23 AM   #12
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First, I will admit that I am not familiar with the Ford V10 MAF. However, that doesn’t look like any MAF I have ever seen. It is typically round with two “hot wires” inside in the flow stream. Most, but not all, will have a honeycomb in the from to ensure laminar flow.

A dirty MAF can not only set codes, the resulting lean condition can cause major mechanical damage.
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Old 01-20-2020, 10:36 AM   #13
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Quote:
Originally Posted by vettenuts View Post
First, I will admit that I am not familiar with the Ford V10 MAF. However, that doesn’t look like any MAF I have ever seen. It is typically round with two “hot wires” inside in the flow stream. Most, but not all, will have a honeycomb in the from to ensure laminar flow.

A dirty MAF can not only set codes, the resulting lean condition can cause major mechanical damage.
Google 'Motorcraft AFLS-165' that's the MAF for sure.
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Old 01-20-2020, 10:46 AM   #14
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I see amazon.com has the Motorcraft AFLS-165 on sale for $45 (free shipping) reg. $210.
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