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Discussion Starter #1
I am just wondering if anyone has tried cleaning the MAP sensor (body) on a T-Bird with special Mass Air Flow (MAF) cleaner?
I am trying to trace where my vibration issue happened and it was after I switched to the K&N filters and did the first filter cleaning. Unlike most other bikes, the K&N filter in the case of the T-Bird has to be sprayed from the inside and not the outside part unlike Harley filters (the special spray should be on the side where air enters not from where it exits).
I -unfortunately- committed the mistake of spraying it from the outside part (which is the air exit part) and I think that traces of that spray may have affected the MAP sensor (although I don't have any Check Engine light issue).
I have used a MAF cleaner on the MAF sensor body of my vehicle and the result was excellent (Check Engine light was ON because of MAF error and it turned OFF after cleaning).
Any ideas or recommendations?
 

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I’m not sure I understand what you’re saying re: cleaning the filter. Are you referring to the air filter? If so, you shouldn’t be cleaning or spraying it while it’s on the bike. You need to remove the filter.. spray the outside and inside with cleaner.. leave it to sit for 5-10 minutes to loosen up the dirt.. and then gently rinse it in warm water til it’s clean. Then you should leave it to air dry (I usually leave it for at least 10-12 hours). Once it’s dry.. you lightly and evenly spray the filter oil on the outside of the filter.
 

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Discussion Starter #3 (Edited)
Yes, I mean the air filter. And of course I take it out and clean outside as you mention.
But the first time I cleaned it, I sprayed the oil on the external part which is incorrect, because the external part is actually the air-outlet side for T-Brids. It is the internal part that should be sprayed with oil (unlike Harley filters). Please see attached photo I just made to show my point.

I suspect that from the first time I sprayed the oil (on the external part - which is the air-outlet in my T-Bird), some of the oil could have contaminated the MAP sensor(s).
 

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I had K&N filters on 3 different bikes and currently have 80000+ miles on this filter. I spray my filter on the outside with enough oil to make the gauze filter material a consistent color. Let it soak in. Then use a brush or compressed air to remove the oil from the wire on the outside of the filter. I do it every 6000 miles when I change my engine oil. Never had a problem.
 

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Discussion Starter #7
I think I am doing the right thing spraying the inside, because the oil should go on the air intake and not the air outlet (from the filter perspective). Please see how the filter configuration is in the T-Bird.
From manifold perspective, if you spray the oil on the outside of the filter, with the strong suction from the engine, particles from the oil will probably go into the intake manifold (which is what I think may have happened to my bike).

How is it possible that for both Harley and T-bird K&N filters, you spray the outside part when one sucks air from the internal side and the other does it from the external part of the filter? Not at all logical. I even believe K&N should clarify this on their filters.
The same applies for cleaning. If you are forcing water from the inside to outside in case of the T-Bird, you are actually helping dirt particles to get stuck (because dirt particles are trapped on the internal side). Whereas in Harleys, you force water from inside to outside because dirt particles accumulate on the external part.

But if it works for you guys, then good for you.
 

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You can use whatever logic you think justifies your theory, but the fact is, that you are supposed to spray the exterior of the filter. If you want to continue doing it your way.. then why bother asking for help in this forum. You are doing it the wrong way. This is a fact.
 

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Discussion Starter #9
You can use whatever logic you think justifies your theory, but the fact is, that you are supposed to spray the exterior of the filter. If you want to continue doing it your way.. then why bother asking for help in this forum. You are doing it the wrong way. This is a fact.
Please note my original question was about cleaning the MAP Sensor not the K&N filter.
 

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Please note my original question was about cleaning the MAP Sensor not the K&N filter.
serfi....you talking about the temp sensor sitting under the side cover which protrudes inside the air box or the 4 MAP sensors under the tank with the hose connections?
 

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Please note my original question was about cleaning the MAP Sensor not the K&N filter.
Short attention spans around here.

MAP and MAF sensors are completely different. MAP is a pressure sensor and MAF is an airflow sensor; they don't work the same way so I wouldn't assume MAF cleaner would be appropriate for a MAP sensor. Instead of asking us mooks, why don't you just google "map sensor cleaning". I did and got a page full of direct hits.
 

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You can use whatever logic you think justifies your theory, but the fact is, that you are supposed to spray the exterior of the filter. If you want to continue doing it your way.. then why bother asking for help in this forum. You are doing it the wrong way. This is a fact.
Please note my original question was about cleaning the MAP Sensor not the K&N filter.
Yes, you asked about cleaning the MAPs, but you also said you were trying to trace your steps to figure out what happened. Spraying the inside of the filter is the WRONG way. I don’t know if that’ll cause issue to the MAPs, but it’s definitely wrong.. no matter what logic you use to justify it.

And I agree with the last comment, spraying the inside of the filter would prob affect the MAF.. not MAP.
 

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Discussion Starter #13
serfi....you talking about the temp sensor sitting under the side cover which protrudes inside the air box or the 4 MAP sensors under the tank with the hose connections?
I am asking about the MAP sensors under the fuel tank (I think there are 2 not 4).
I also believe there is no MAF sensor in the T-Bird, that's why I think the MAP sensors may have been affected.
 

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MAP and MAF sensors work very differently. A MAP sensor is an absolute pressure sensor, so it only has one opening towards the inside of the manifold. Theoretically it could get clogged by the air filter oil, but that would require your filter to be dripping with it. The air filter oils I know are very sticky and don't want to fling off the filter even when exposed to the typical inlet vacuum. A MAF filter can get contaminated much more easily, which is why there special MAF cleaners are made for it.

Instead of asking us mooks, why don't you just google "map sensor cleaning". I did and got a page full of direct hits.
I agree with this, though I doubt that'll be the cause. If you're already cleaning pressure sensors though, you should clean the ambient air pressure sensor as well. Both the MAP and ambient sensor are required for the ECU to calculate the inlet manifold vacuum, so both could be at fault if that measurement is incorrect.
 

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I am asking about the MAP sensors under the fuel tank (I think there are 2 not 4).
I also believe there is no MAF sensor in the T-Bird, that's why I think the MAP sensors may have been affected.
Duh....yes I was having a senior moment 2 hoses 4 connections, but there are just 2 MAP sensors.....and I have never attempted cleaning. Got rid of the OEM connectors long ago and replaced the tubing with racing grade silicone vacuum tubing.

Air Temp Sensor...see part 20 https://www.bikebandit.com/oem-parts/2014-triumph-thunderbird-lt/o/m156480#sch868469

Thanks for your response.
 

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What needs cleaning on a pressure sensor? The ones I’m familiar with are pressure transducers. You pull a vacuum on it and a voltage changes.
 

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I think I am doing the right thing spraying the inside, because the oil should go on the air intake and not the air outlet (from the filter perspective). Please see how the filter configuration is in the T-Bird.
From manifold perspective, if you spray the oil on the outside of the filter, with the strong suction from the engine, particles from the oil will probably go into the intake manifold (which is what I think may have happened to my bike).

How is it possible that for both Harley and T-bird K&N filters, you spray the outside part when one sucks air from the internal side and the other does it from the external part of the filter? Not at all logical. I even believe K&N should clarify this on their filters.
The same applies for cleaning. If you are forcing water from the inside to outside in case of the T-Bird, you are actually helping dirt particles to get stuck (because dirt particles are trapped on the internal side). Whereas in Harleys, you force water from inside to outside because dirt particles accumulate on the external part.

But if it works for you guys, then good for you.
As long as the oil soaks in consistently it doesn't matter. What matters is that you give it the time it needs to soak in. Keep in mind that the crankcase breather tube goes into the airbox so it would be more likely for oil from the crankcase to contaminate any sensors. Most people over spray the filter material anyways. The filter oil will soak in sprayed from either side then it's just a matter of patience letting it absorb into the material in an even coating. Done right there shouldn't be anything to blow out (not recommended by K&N) or wipe off. But I've only been using K&N's since the '80's so they may suggest letting your drone reoil it from a computer/phone app. LOL!! It's just a filter. Clean it - dry it- reoil it - let it soak fresh oil until there's no white or excess on the filter- reinstall it. Ride it. What if you don't have spray but the oil bottle instead? Try oiling that from the inside. There's as many way's to accomplish the mission as there are Able bodies to follow the orders.
 
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