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Old 11-27-2012, 12:29 AM   #36
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Originally Posted by 1987mustanglx50
I asked the ford dealer today my cars came factory maf sensors from dealer and all 87 did come with a maf sensor California cars a different from any other states they need to run better/cleaner cause of smog laws here being more strict
I dont know where he got his info, but its false.
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Old 11-27-2012, 12:32 AM   #37
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That's odd because every 87 mustang I seen has a maf sensor?
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Old 11-27-2012, 12:40 AM   #38
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Originally Posted by 1987mustanglx50
That's odd because every 87 mustang I seen has a maf sensor?
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Quote:
Originally Posted by 1987mustanglx50
That's odd because every 87 mustang I seen has a maf sensor?
They would have had to have been swapped. My 87 was speed density when i bought it. And being that they are now 25 years old theres a good chance they were swapped to mass air years before you seen them
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Old 11-27-2012, 12:54 AM   #39
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Originally Posted by keaton5.0


They would have had to have been swapped. My 87 was speed density when i bought it. And being that they are now 25 years old theres a good chance they were swapped to mass air years before you seen them
When you swap them from speed density to maf sensor do you swap the sensor it self or wiring to?
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Old 11-27-2012, 04:15 AM   #40
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That is odd in Cali I've seen a couple 87 mustangs with MAF

---------- Post added at 02:15 AM ---------- Previous post was at 02:15 AM ----------

And are bone stock
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Old 11-27-2012, 10:16 AM   #41
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Originally Posted by 1987mustanglx50

When you swap them from speed density to maf sensor do you swap the sensor it self or wiring to?
You need a mass air computer, A9P or A9L. And splice the mass air harness into the computer.
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Old 11-27-2012, 11:47 AM   #42
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Originally Posted by Venomouz831
That is odd in Cali I've seen a couple 87 mustangs with MAF

---------- Post added at 02:15 AM ---------- Previous post was at 02:15 AM ----------

And are bone stock
Yea that's what am saying I went to the dealer and they said they are stock with a maf sensor cause of the California smog laws and all data and shop key 5 show on their programs that these car come with a maf sensor as well

---------- Post added at 09:47 AM ---------- Previous post was at 09:45 AM ----------

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Originally Posted by keaton5.0

You need a mass air computer, A9P or A9L. And splice the mass air harness into the computer.
See my computer is the stock computer and has no splice into the harness/computer at all its all original ?
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Old 11-27-2012, 03:23 PM   #43
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Your dealer doesn't know what they are talking about and I would probably find another one. The reason you guys have seen 87s with them is because that is the first mod that should be done to a mustang imo. It maybe possible that 87 uses a similar sensor for the speed density. But the ecu is definitely different.

http://www.allfordmustangs.com/forum...af-sensor.html

http://forums.themustangsource.com/f...sensor-511946/

I can find these links all day long. If you want to be sure you know what you have pull the numbers off the ecu.
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Old 11-27-2012, 03:45 PM   #44
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Your dealer doesn't know what they are talking about and I would probably find another one. The reason you guys have seen 87s with them is because that is the first mod that should be done to a mustang imo. It maybe possible that 87 uses a similar sensor for the speed density. But the ecu is definitely different.

http://www.allfordmustangs.com/forum...af-sensor.html

http://forums.themustangsource.com/f...sensor-511946/

I can find these links all day long. If you want to be sure you know what you have pull the numbers off the ecu.
+1. Most of them have been tossed around between 10-15 different owners since they were originally built so its probably fairly rare to find one still with speed density. My 87 was still speed density when i bought it and its the only one i have seen.
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Old 11-27-2012, 07:14 PM   #45
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Mine are stock and am the second owner to both cars the maf sensor went bad on my 87 and I just bought a new maf sensor and replaced it does the speed density sensor look the same as a maf sensor? heres a picture of my ecu numbers top one of my 1987 mustang lx 5.0 and this one has a maf sensor
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Old 11-27-2012, 07:28 PM   #46
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There is no sensor for speed density. Speed density systems use vacuum, coolant temperature and intake air temperature operate.

---------- Post added at 09:28 PM ---------- Previous post was at 09:25 PM ----------

Look on your driver side door tag and see what the date on it says. Should just have the month and year.
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Old 11-27-2012, 07:35 PM   #47
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Originally Posted by keaton5.0 View Post
There is no sensor for speed density. Speed density systems use vacuum, coolant temperature and intake air temperature operate.

---------- Post added at 09:28 PM ---------- Previous post was at 09:25 PM ----------

Look on your driver side door tag and see what the date on it says. Should just have the month and year.
it says 02/87
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Old 11-27-2012, 07:47 PM   #48
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Mine are stock and am the second owner to both cars the maf sensor went bad on my 87 and I just bought a new maf sensor and replaced it does the speed density sensor look the same as a maf sensor? heres a picture of my ecu numbers top one of my 1987 mustang lx 5.0 and this one has a maf sensor
That is a speed density computer
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Old 11-27-2012, 07:49 PM   #49
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That is a speed density computer
ok but it has a maf sensor and how do you know its a speed dendity computer and how is it that every program like all data and shop key 5 dont bring anything up on it but i look for maf sensor and it comes out right away those programs only show what came out of dealer not any mods done to them
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Old 11-27-2012, 07:55 PM   #50
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I typed the numbers in on google, and it also doesnt say A9P or A9L anywhere which is the mass air computer. Does your 87 run? If so does it run any different with the mass air sensor unhooked?
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Old 11-27-2012, 09:02 PM   #51
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I typed the numbers in on google, and it also doesnt say A9P or A9L anywhere which is the mass air computer. Does your 87 run? If so does it run any different with the mass air sensor unhooked?
Ow ok and yea my car runs fine if I unplug the maf it will struggle to stay on and then turn off at times it will stay on longer but eventually it will turn off the car shakes a lot if I unplug it and it will make The check engine light comes on to
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Old 12-31-2012, 07:41 AM   #52
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Well ford might have issued a recall for Cali cars only. I know they did on my exhaust system.

How do I tell if mine is speed density or MAF? Is there a kit to swap over?
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Old 12-31-2012, 01:09 PM   #53
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Well ford might have issued a recall for Cali cars only. I know they did on my exhaust system.

How do I tell if mine is speed density or MAF? Is there a kit to swap over?
You'll have this sensor in your intake right behind the filter.
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Old 12-31-2012, 02:01 PM   #54
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You'll have this sensor in your intake right behind the filter.
Earlier in this thread he posted a pic of his intake and it had a maf sensor. But the pic of his computer showed a speed density computer
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Old 12-31-2012, 06:49 PM   #55
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Earlier in this thread he posted a pic of his intake and it had a maf sensor. But the pic of his computer showed a speed density computer
Quite aware of that, just answering Derek.
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Old 12-31-2012, 07:18 PM   #56
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You'll have this sensor in your intake right behind the filter.
Thanks a lot! I was having trouble finding anything.
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