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6/28/2021 7:16 PM  #1


FiTech one more time

One of my car buddies was over yesterday for some Scott Pruitt wine - he makes some of the best in the country.

We were doing some bench racing about my problems with the FiTech FI I have.  He got the 6-pin connector apart after some mighty pulling - he even commented on how tough it was and he is 6'4".

One tine was fried and another was rusted out.  The female plug faces up in this configuration and it is not waterproof.  Thus the rusted tine.  the tines are very thin and the wire looks rather thin too.  Easy to fry a connection. We agreed that the engineering of that plug requires a redo.

He suggested I wire in an aircraft plug that is a larger gauge, tines farther apart , and waterproof.  Good idea.  We might also replace the power wire to the fuel pump with a bigger wire.

 


Original owner - 351w,T-5, 4whl disks, power R&P
 

6/29/2021 1:57 PM  #2


Re: FiTech one more time

lowercasesteve wrote:

One of my car buddies was over yesterday for some Scott Pruitt wine - he makes some of the best in the country.

We were doing some bench racing about my problems with the FiTech FI I have.  He got the 6-pin connector apart after some mighty pulling - he even commented on how tough it was and he is 6'4".

One tine was fried and another was rusted out.  The female plug faces up in this configuration and it is not waterproof.  Thus the rusted tine.  the tines are very thin and the wire looks rather thin too.  Easy to fry a connection. We agreed that the engineering of that plug requires a redo.

He suggested I wire in an aircraft plug that is a larger gauge, tines farther apart , and waterproof.  Good idea.  We might also replace the power wire to the fuel pump with a bigger wire.

 

    I would give that a try!  Its sounds like that probably is the problem with your unit!  Its funny on the Facebook FiTech group 3/4 of those bone heads always say its a user install error causing most problems.   In this case Id say poor workmanship from FiTech.  My worked great for 3 years until the gremlins hit and finally said screw it and went back to carburetor.   I know dam well it was the unit and not something I had done!   
 

Last edited by Steve69 (6/29/2021 1:57 PM)

 

6/29/2021 3:26 PM  #3


Re: FiTech one more time

lowercasesteve wrote:

He got the 6-pin connector apart after some mighty pulling - he even commented on how tough it was and he is 6'4".
 

Hear that Sally?
The tall guys are stronger.😜

Sounds like the connector might have had a loose/bad connection from corrosion and/or amount of current flowing in the circuit.

What was condition of the wires?
Any brittle or blackened?
Any corrosion inside the wire jacket?

I would also make a temporary connection with wire nuts or butt splices and measure current in circuits if possible to see if wires are sized correctly.

This would be a good time to relocate connectors (if desired) further away from heat and water.

 

6/29/2021 5:41 PM  #4


Re: FiTech one more time

Nos681 wrote:

lowercasesteve wrote:

He got the 6-pin connector apart after some mighty pulling - he even commented on how tough it was and he is 6'4".
 

Hear that Sally?
The tall guys are stronger.😜

Sounds like the connector might have had a loose/bad connection from corrosion and/or amount of current flowing in the circuit.

What was condition of the wires?
Any brittle or blackened?
Any corrosion inside the wire jacket?

I would also make a temporary connection with wire nuts or butt splices and measure current in circuits if possible to see if wires are sized correctly.

This would be a good time to relocate connectors (if desired) further away from heat and water.

Good point about relocation of connectors.  And I'll see about current draw thru the wire.

And the wires look fine from outside.
 


Original owner - 351w,T-5, 4whl disks, power R&P
     Thread Starter
 

6/30/2021 5:03 AM  #5


Re: FiTech one more time

Any common automotive connector that is weather tight would work.  I used GM Weatherpack for years, but they are really big.  Terminals and parts are commonly available at the local auto parts store though.  There are more modern, smaller style connectors too though.  Just make sure whatever you use you have the correct crimp tool so a solid connection. 

 

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