Mass air conversion

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Feb 18, 2009 | 02:41 PM

ktp744

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Joined: Apr 2005

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Mass air conversion

I have a 1992 f-150 with a 5.0 v8 engine that i want to convert from speed density to mass air. I have a mass air meter, computer, and complete engine harness off of a 1994 f-150 with a 5.0 v8. If i put all the parts from the 1994 on the 1992 will it work or will the firing order of the 92 engine not match the 94 computer?
Thanks,
kt pulliam

Feb 18, 2009 | 03:38 PM

Conanski

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From: Ottawa, Ontario

You have 2 choices, rewire the injector portion of the '94 harness for the old firing order or change the camshaft to one with the new firing order. Personally I'd take option #2 because the stock cam is so pathetic, but that may be more work than you planned for. And don't let anyone tell you you don't have to match the injector firing order to the cam, the motor will never run right if you don't change it.

Feb 18, 2009 | 03:58 PM

1994 F250: 351, C6

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I would not bother with this unless you plan on making the modifications to need Mass Air.

Feb 20, 2009 | 01:37 AM

Runboy

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Aren't there supposed to be efficiency / mpg benefits to the mass air conversion as well?
Mike

Feb 20, 2009 | 08:49 AM

GlennFordx4

Fleet Mechanic

Joined: Jan 2005

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From: cape may county NJ

I am planing this as well and would like to start getting parts together I know where there is a 94 to get some parts from but my truck is older and the auto trans is not controled by computer and the 94 is so what computer do I need to get I have a whole junkyard to choose my parts from.