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Ford 67-96 F-Series, 78-96 Bronco All discussions of 67-96 F-Series Trucks and 78-96 Broncos

 
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post #1 of (permalink) Old 01-01-2001, 01:52 PM Thread Starter
 
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5.8L ?

You guys have told me that I will not be able to use my '90
computer for a 5.8 with a '96 5.8L because of the different sensors. EX: MAP sensor on the '90 and on the '96 its called a MAF sensor. I don't have mass air currently on my 1990 bronco and when I purchased the '96 motor it came with intake to oil pan including the engine harness already connected to the sensors it is square. Now I am going to use the wiring in my '90 for this engine so i will be taking the '96 harness off. Where exactly is the MAF sensor.
I did not get the mass air sensor with this engine because I would have to rewire the whole engine compartment, and cut out the firewall to fit the new computer and hareness through the rectangle hole that I have now. Will this engine run with my current (speed density system). I hope so , Just about out of $$$$.


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post #2 of (permalink) Old 01-01-2001, 11:03 PM
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Re: 5.8L ?

I suppose the question is: Is you're Speed density setup all there? and obviously - Was you're trucks original motor a 5.8L? If the answer to both is yes then you should just swap you're entire intake (I don't have too much experience with the ford truck EFI but if everything doesn't match up swap both you're old Upper and Lower - Assuming you're original motor was a 5.8L of course.) on to the new motor. To answer you're question about the M.A.F. - it is usually located just after the filter assy. - In the plastic plumbing that goes to the the throtle body. if you're original motor was the 5.0 - You will more than likely have to put the atmospheric sensors on the new lower intake setup (I'm assuming the Upper plenum swaps.) Maybe if I get a better idea of what is going on I can help more.

post #3 of (permalink) Old 01-02-2001, 10:34 AM
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Re: 5.8L ?

Here's what you may want to try, and I'm sure I'll forget a couple of things along the way:
1) Use your 90 engine harness, and sensors. When you start pulling everything out of the engine bay, LABEL EVERYTHING. 3" masking tape and a pen work well.
2) Convert the 351 to the speed density setup for 1990. You may have to route some of the vacuum hoses differently for the MAP sensor, and the 351 vac. ports from the manifold.
3) Forget the MAF. It is inline to the intake tube between the airbox, and throttle body. Use your 1990 intake tube if possible. The MAP is on the firewall next to the A/C unit.
4) You shouldn't need to do any cutting to the firewall for anything at all. The EEC module is located under the kick panel on the driver's side of your vehicle. Pull the interior trim out under the dash. You'll see the module. It's about 6" square, and maybe, 3" thick. You'll need to take the mounting screw off the wire harness from the engine side of the EEC (I think it's a 10mm head). Pull the harness off, and take the EEC module out through the interior. MAKE SURE that you reinstall the orange rubber seal. It's the only protection you have from the elements.
5) make sure you use the 351 firing order when you reinstall the plug wires. 1990 302's were the original 302 firing order.
6) Just take your time, and try to think through your situation, you will be allright. Try to find a 1990 351 donor vehicle (truck or Bronco). you can pick alot of the production stuff off it to aid you with your project. You may even want to take a few polaroid pictures to use as a reference.

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post #4 of (permalink) Old 01-02-2001, 11:56 AM Thread Starter
 
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Re: 5.8L ?

Hey, thanks guys I currently have the 5.0L in it now and as soon as the weather breaks-March-ish then it will time to transform. I'm gonna have to find the intake for a 351W. I don't understand why the intake that is on there won't work? I have thrown a few modification to this engine, ford performance cam, AirAid throttle body spacer with helix bore,Accel performance ignition system, K&N fuel injection performance kit, and a Vortex cat-back dual exhaust.
Nothing too high performance but a little extra. I bought a computer for the 351W from auto-parts store $95. This was for a 1990 351W ford bronco. Is this right? I've done engine swaps before but not with mass air and I usually went to a prior year to swap, but i couldn't pass up this deal $650 for entire engine top to bottom complete. They were asking $1100, but it was not in the vehicle, and the guy was in a hurry> a divorce < and was desperate. Ok thanks again and I'll keep you all updated on my progress. HAPPY NEW YEAR!!!:-)

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