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Old Sep 28, 2018 | 09:23 PM
  #1  
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Map sensor

Okay so the code that my engine light throws is map sensor
I cannot find the map sensor I've looked everywhere.
I believe that the idiot that I bought my truck from took it off.
Does anyone have a wire diagram for a 95 f150 5.0 it's the 302 engine 2 wheel drive
 
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Old Sep 28, 2018 | 09:38 PM
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It would be rare for a '95, 302 to have a MAP sensor.

It is more likely to have a MAF sensor. This engine would have a MAF sensor and not a MAP sensor as the older Speed Density trucks had.

If you post the codes you have, we can help. You should also have 3-Digit codes, not 2-digit and Never a mix of both 2 and 3 digit codes.
 
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Old Sep 28, 2018 | 10:08 PM
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Would it not still have a BAP sensor though? Or are all trucks still speed density?
The speed-density engines used a MAP (manifold absolute pressure), while the MAF engines (usually in cars like the Mustang that I know of anyway) us a BAP (barometric pressure) that is physically the same internally and externally too, except for the protective sleeve on the hose nipple.
The fitting is to keep you from connecting a vacuum line to a BAP, like you would if you had a MAP sensor. Not only identical in looks, but they are literally the same part other than that hose fitting bit.

Either way though if yours is like many and has one or the other, your sensor is up under the cowl area, just to the passenger side. Probably over the A/C stuff if so equipped.
Just looked and the '93 5.8 I have out front has a MAP, and the listings call for the same part on a 5.0

Here's a pic of where the one is I just popped the hood on: OOps. it's at the top for some reason. Guess I moved my cursor and didn't notice.

This next pic is of a similar year BAP for a MAF engine.




 
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Old Sep 29, 2018 | 09:23 AM
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MAF trucks don't have a MAP sensor that is one of the differences between these and cars.
 
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Old Sep 29, 2018 | 12:48 PM
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MAF sensor location.
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Old Sep 29, 2018 | 03:07 PM
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..

See I have a MAF and I didn't think that they had both but the part store told me that I needed a map sensor and it that was for my truck even after I told them that I had a MAF sensor
 
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Old Sep 29, 2018 | 03:08 PM
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Does anybody know why it would bring the code map sensor if I don't need a map sensor
 
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Old Sep 29, 2018 | 03:11 PM
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The whole problem with the truck is it sometimes it runs good sometimes it doesn't and when it doesn't it acts like it is running out of gas you hear a big loud Knocking when you try to accelerate( I changed the tps already)
 
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Old Sep 29, 2018 | 03:29 PM
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Originally Posted by Ford.Chick.92
The whole problem with the truck is it sometimes it runs good sometimes it doesn't and when it doesn't it acts like it is running out of gas you hear a big loud Knocking when you try to accelerate( I changed the tps already)
I think some of these experts could better help you if you tell us what code or codes you have.
 
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Old Sep 29, 2018 | 03:46 PM
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Your symptoms sound like a potential MAP/BAP sensor issue to me too Ford.Chick. And while a '95 OBD-I engine control system is not as sophisticated as the next year's OBD-II with all of it's fancy computer diagnostic systems more dialed in, I too wonder why a MAP code would come up.
But as said, do you have the code number just to verify?

I did not know Ford truck MAF-equipped engines were using different sensors and parameters than the passenger cars with Windsor-family engines were Since the car engines do have a BAP sensor, how and why would a MAF engine in a truck not have one? And how do they get away without knowing that fairly important information?
Not doubting you know your stuff about this. Just wondering why. All the MAF engines I've worked on were admittedly in the cars. And we've had discussions about the sensors going bad here in the truck forums too, but I don't remember if they were all MAP's on 5.8's, or perhaps were different year models.
Were there changes also in the year models? Maybe that's what's messing me up here.

Yes, I know Ford did have a way of skewing things like this around, and keep us guessing about stuff just when we thought we knew it all. But I'm still curious why Ford.Chick would get a MAP code when there is no such thing.
Is this truck new to you Ford.Chick, and has had the code since you got it? Or have you owned it for awhile and the code just showed up recently? Just wondering if someone might have swapped computers and used an incorrect one (assuming it would still connect).

Hope you get it figured out.
IN the meantime though, how's about a pic or two from under the hood? And definitely post up the code you're getting.

Paul
 
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Old Sep 29, 2018 | 03:56 PM
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I thought I mentioned it before, but I don't see it. Just adding that there are at least listings for MAP sensors on 5.0 equipped trucks. My local parts store had a listing, and so does RockAuto.com.
I know the parts computers these days are not always as accurate as the books used to be, but the listing is there in case that means anything.

Paul
 
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Old Sep 29, 2018 | 04:42 PM
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As I mentioned before, post the code(s) that you retrieved or whoever it was that pulled them.

Also, what's this "big, loud KNOCKING" you speak of? That indicates a completely different problem. I've never heard an engine have loud knocking from a bad MAF, MAP, or TPS sensor.
 
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Old Sep 30, 2018 | 12:24 AM
  #13  
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Originally Posted by 1TonBasecamp
Your symptoms sound like a potential MAP/BAP sensor issue to me too Ford.Chick. And while a '95 OBD-I engine control system is not as sophisticated as the next year's OBD-II with all of it's fancy computer diagnostic systems more dialed in, I too wonder why a MAP code would come up.
But as said, do you have the code number just to verify?

I did not know Ford truck MAF-equipped engines were using different sensors and parameters than the passenger cars with Windsor-family engines were Since the car engines do have a BAP sensor, how and why would a MAF engine in a truck not have one? And how do they get away without knowing that fairly important information?
Not doubting you know your stuff about this. Just wondering why. All the MAF engines I've worked on were admittedly in the cars. And we've had discussions about the sensors going bad here in the truck forums too, but I don't remember if they were all MAP's on 5.8's, or perhaps were different year models.
Were there changes also in the year models? Maybe that's what's messing me up here.

Yes, I know Ford did have a way of skewing things like this around, and keep us guessing about stuff just when we thought we knew it all. But I'm still curious why Ford.Chick would get a MAP code when there is no such thing.
Is this truck new to you Ford.Chick, and has had the code since you got it? Or have you owned it for awhile and the code just showed up recently? Just wondering if someone might have swapped computers and used an incorrect one (assuming it would still connect).

Hope you get it figured out.
IN the meantime though, how's about a pic or two from under the hood? And definitely post up the code you're getting.

Paul
The the truck is new to me and has had this issue since I got it I'm not sure if maybe the computer and it itself has went bad I'm not sure the code I was not the one who hooked it up and see and it and I was not there but I will check it myself without a scanner to see if I can get it to show anything and let you know
 
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Old Sep 30, 2018 | 10:41 AM
  #14  
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Originally Posted by timbersteel
It would be rare for a '95, 302 to have a MAP sensor.

It is more likely to have a MAF sensor. This engine would have a MAF sensor and not a MAP sensor as the older Speed Density trucks had.

If you post the codes you have, we can help. You should also have 3-Digit codes, not 2-digit and Never a mix of both 2 and 3 digit codes.
Koeo
111
112
172
152

Koeo
116
225
536
622
 
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Old Sep 30, 2018 | 12:32 PM
  #15  
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Originally Posted by Ford.Chick.92
Koeo
111
112
172
152

Koeo
116
225
536
622
Here are the codes
 
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