Testing The Diode Pack
#1
Testing The Diode Pack
Hi Again,
I'm Using my S 57 manual to test the wiring to resolve a rich running engine.
Tonight I remembered, somewhere, I read a thread from a gentleman named Frank, who mentioned a bad Diode Pack could enrich fueling. I think it had something to do with sending the computer an incorrect signal. So I tested the diode pack:
Using a Fluke model 77 multimeter, here are my results:
Pin 2 to Pin 5: 0.550, one short beep
Pin 3 to pin 5: 0.554, one short beep
Pin 1 to pin 4: 0.000, continuous tone.
Now, according to the Fluke 77 Operator's Manual, Pin 1 to Pin 4 is indicating a short circuit, so Believe I need to replace the diode pack.
I value all of your opinions on this matter. Please tell me I'm correct.
If this fixes the problem, (after I'm done crying) Tammy and I are going to celebrate. We going to take the jag out for fish 'n chips, and a pint of bitters!
Thanx for listening!
George
I'm Using my S 57 manual to test the wiring to resolve a rich running engine.
Tonight I remembered, somewhere, I read a thread from a gentleman named Frank, who mentioned a bad Diode Pack could enrich fueling. I think it had something to do with sending the computer an incorrect signal. So I tested the diode pack:
Using a Fluke model 77 multimeter, here are my results:
Pin 2 to Pin 5: 0.550, one short beep
Pin 3 to pin 5: 0.554, one short beep
Pin 1 to pin 4: 0.000, continuous tone.
Now, according to the Fluke 77 Operator's Manual, Pin 1 to Pin 4 is indicating a short circuit, so Believe I need to replace the diode pack.
I value all of your opinions on this matter. Please tell me I'm correct.
If this fixes the problem, (after I'm done crying) Tammy and I are going to celebrate. We going to take the jag out for fish 'n chips, and a pint of bitters!
Thanx for listening!
George
#2
The diode pack doesn't have anything to do with lean/rich fueling nor send any signal to the computer. It controls the fuel pump circuit and acts as junction point for a couple other items.
Here's some reading on rich mixture problems:
XJ6 Series - EFI Rich Mixture
Cheers
DD
Here's some reading on rich mixture problems:
XJ6 Series - EFI Rich Mixture
Cheers
DD
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Mad Matt (06-15-2014)
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