Stand-alone EEC?
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Junior User
Joined: Aug 2012
Posts: 82
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From: San Diego
Stand-alone EEC?
I am looking at the 5.8L Fuel Injected F-series. Picking up a used 5.8 and trans this way seems pretty affordable an I can test drive it, compression test it, etc. I know the late 80's (88?) is when the 5.8 went fuel injected in the F-series. That would be a pretty easy swap since the EEC is separate. Question is, when did the EEC change away from a stand alone? Need to know what my options are. Thanks.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
What exactly are you trying to do? The EFI system in these trucks is pretty much "stand alone" all the way through but the computer controlled transmission was introduced pretty early behind the 5.8 which adds to the wiring harness. In '92 the trucks were switched to electrical speedos and vehicle speed was fed through a PSOM module in the speedo cluster before going to the PCM so that's when things got even more complicated.
Thread Starter
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Junior User
Joined: Aug 2012
Posts: 82
Likes: 0
From: San Diego
What exactly are you trying to do? The EFI system in these trucks is pretty much "stand alone" all the way through but the computer controlled transmission was introduced pretty early behind the 5.8 which adds to the wiring harness. In '92 the trucks were switched to electrical speedos and vehicle speed was fed through a PSOM module in the speedo cluster before going to the PCM so that's when things got even more complicated.
Last edited by jpbecker; Feb 15, 2014 at 11:49 PM. Reason: Add a little more
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