Not seeing a trans may cause the engine run in limp mod as well.
While we are on the subject, does a MAF motor actually use o2 sensors? I know the speed density has one, pre cat. What about mat?
My concern is going MAF and needing more or a new sensors and having a gutted cat..

 

*ALL* engines starting in 1981 use O2 sensors.

 

LIES! And idi doesn't bahaha
But you either misunderstood me or are being a smart ***.
The o2 on my truck now is pre cat and basically worthless, would a maf truck have the same number and placement of sensor(s) or is there a post cat one

 

The pre-cat sensor(s) are on OBD-I ('95-down) vehicles. The OBD-II ('96-up) add a post cat sensor. The post cat sensor monitors converter efficiency by a strategy of comparing the readings with the pre-cat sensor(s).

All EFI vehicles require the pre-cat sensors in order to have closed loop control. It is possible but not legal to replace the post-cat sensor on OBD-II vehicles with a MIL eliminator.

 

Okay good. I'm 99% sure the motor I'm getting (if the jackass admits he got it for free and is no longer asking 500 for it) is a 95 so it would be obd1, but MAF.
What sort of problem would you run into trying to use a 96 motor with obd2 on an obd1 truck, or would the truck then become obd2 when using the new computer.

 

This might help: http://www.fordmuscle.com/archives/2...AirConversion/
I have read several articles that the 88-93 Mustang eec iv does not read the trans. Just like the eec iv in my 89 doesnt think the trans is missing just because it has a C6 now.

Im still thinking this Megasquirt kit sounds good. You dont have to do a MAF conversion, just replace the eec iv with the Megasquirt and tune it to your mods. Check out this write up: http://www.ford-trucks.com/forums/10...egasquirt.html

 

There was a guy on here like a year ago that did a mid 90's f150 with a twin turbo 4.6 from like a police interceptor or something and he tuned it with megasquirt. Not easy stuff there.

 

Here is more info: http://www.diyautotune.com/videos/te...irst-start.htm

Here is a quick video:http://www.streetfire.net/video/mega...ng_2070056.htm

 

I can see how it would be a bit difficult with a twin turbo engine or wild NA engine. But for a stock 5.0 it doesnt look to bad at all. Megasquirt has some nice info on how to tune a stock 5.0 from what they told me. After you get the base tune and start adding mods its as easy as checking to see where your A/F is at certain RPM ranges and adding fuel or taking away. It shows your igition advance, injector timing, wide band A/F, etc. Everything you need is on one screen and you can use MegaLogViewer to datalog runs. Its like a dyno that you drive then go back and make change where needed. Looks like a lot but it really isnt. On my atv with the powercommander, it dont have all of that. Its just fuel and ignition maps and to tune it you have to perform a plug chop or use a dyno. But it is really easy to. There is SO MUCH info available that you can always find a tune that will work or be real close for your vehicle.

 

Russo, if you go obd2 with the 95 motor, I would think that all you would need is the harness, ecu, sensors, and different emissions. Obd2 doesn't rely on the A.I.R pump like obd1 does. It will go rich or lean depending on what the o2's say to manage emissions. Also the cat is different as it stores/ creates its own oxygen to help the heavy metal catalyst do its job. The 95 obd1 MAF only requires 1 o2 sensor up stream from the cat.Which would help your gutted cat situation. The 96 obd2 MAF requires 2. One before and after the cat. Also you have to think about your gauge cluster. Will your gauges work with the obd2 ecu? I'm not sure.

 

I know the 94 and 95 Mustangs have OBD1 with non functional obd2 ports for running tests. The V6 cars have OBD2. Is there a way to use both the OBD1 and OBD2? From what I have read on some Mustang forums, they are all against going from 1 to 2. But I did find this:http://www.ehow.com/how_7866177_do-c...obd2-obd1.html

 

I'm not sure on the swap anymore anyway. The guy got the motor for free cause I couldn't take it since the garage was filled. He now wants me to pick it up and pay 500 bucks for it.
Sorry dude, but I'll live with a slight tick in the bottom end before I shell out that kinda cash for an old, used motor. Low miles or not.

 

Not at all true. The 96 F150s are OBD-II and they have an air pump. As a matter of fact, on the 300 they use the secondary air in the head on both manual and auto trannied trucks, unlike the earlier years which used it only on the manual version. They also use 3 HEGO sensors: two upstream on each bank and one downstream. As to the cluster, 95 and 96 use the same cluster but there are some minor wiring differences from the earlier years. AFAIK none of them are related to whether the PCM is OBD-I or -II.

 

Why can't things be as simple as carbs and run like efi.

 

Well I stand corrected. It was my understanding that obd2 engine management no longer required A.I.R. due to the new style cats and its greater ability to manage emissions with fuel flow. I aslo understand that 95 and 96 gauges were essentially the same. I just didn't think the 87-91 gauges would work properly with an obd2 ecu. Just for the sake of knowing, even though the 300 is an inline engine the ecu sees it as two banks instead of one? I knew it has two exhaust manifolds, but didn't know as far as fuel delivery it was seperated into to "banks."