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Reassembly: 454 Mag Mpi

Old 05-09-2011, 08:42 AM
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Default Reassembly: 454 Mag Mpi

Hi all,

I am reassembling my 454 mag mpi injector/efi wiring. I have the manual 23 with the schematics, but was wondering if anyone has or could take me a few pics of theirs for reference. I left the harness with the injector plugs on the intake purposely when it went to the machine shop. It came back in a box next to it. Never had a chance to take any reference pics. Any help would be greatly appreciated.
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Old 05-09-2011, 12:57 PM
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Originally Posted by tebo
Hi all,

I am reassembling my 454 mag mpi injector/efi wiring. I have the manual 23 with the schematics, but was wondering if anyone has or could take me a few pics of theirs for reference. I left the harness with the injector plugs on the intake purposely when it went to the machine shop. It came back in a box next to it. Never had a chance to take any reference pics. Any help would be greatly appreciated.
I have a 1998 454 MPI (385 hp) that I am rebuilding. I took lots of pics during disasembly - I might be able to post those on Snapfish or something similar. Let me know if its the same motor as yours.
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Old 05-09-2011, 02:50 PM
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Yep, same engine as mine. If you could email, I'll post my adress.


Jeremy
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Old 05-10-2011, 06:04 PM
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Default 454 Mpi

Tebo do yourself a favor and throw away the oil cooler and lines.. Buy new. I know 3 people including myself that reused the old ones and lost a main bearing. Not worth it to risk it.

Chris
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Old 06-15-2011, 09:57 PM
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wow, I'm going thru the same process right now and just can't figure out the wiring harness routing. It would be great to have some pics!
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Old 08-01-2012, 01:18 PM
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Would any pic's still be available to help identify the wiring harness connector to injector order for a 454 mag / mpi?

"Stupid is as stupid does"

Thanks
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Old 08-01-2012, 10:55 PM
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Here is one from the top. The 2 per cylinder is pretty obvious when you get the wiring harness routed, but not sure how to tell which of the 2 go to each injector. If you notice the white tape on the front wire for each pair, I have them labeled.
http://i1173.photobucket.com/albums/...0/100_0247.jpg
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Old 08-02-2012, 09:01 AM
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28 Eliminator

WOW !

Can't thank you enough for your help. I have been very careful during the tear down, labeling, numbering, etc...

Get another person involved and the practice goes by the wayside.

Thanks again ...
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Old 08-02-2012, 09:14 AM
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Default 454 Mag/Mpi Injector

28 Elim's photo is a god send ...

There is an observation I made, the wires that are exposed between the injector plug and cable wrap are different colors. It looks like they are red / blue on some and red / green on others. Haven't quite developed a pattern, yet.

I'm feeling much better about "reconstructing" the proper connecter sequence.

I'm open and thankful for ant other input.
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