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Topic: Interesting... (Read 2039 times) previous topic - next topic

Interesting...

Reply #15 –
X
Here is my EEC in stock form.

Interesting...

Reply #16 –
X
This is what the electrolytic capacitors look like. I replaced all three of mine. Mine were 47uf in value. One of these was at 3.5uf (bad).

Interesting...

Reply #17 –
Here is the third capacitor hidden at the end of your board.

Interesting...

Reply #18 –
Here is one of the resistors I replaced. It is listed as R1 on the board. Value is .51 ohm, 1 watt resistor. The stock resistor is carbon, either a 5% or 10% resistor. I replaced it with a 5% carbon composite resistor. Also I advise using good quality capacitors as well. I used Nichicon Capacitors the same as stock.

Interesting...

Reply #19 –
It is best to read the resistance on your resistors with them out and personally I make sure I'm not touching them. Here is the 2nd resister I changed, also a carbon resistor. This one is listed as R69 and I could not locate it on this schematic. So, the colors look to be Brown, Gray, Gold and silver which comes out to 1.8 ohm @ 10%. My stock resistor reads 2.4 ohm, so I will replace it.

Interesting...

Reply #20 –
That's all I'm going to do to mine for now. I took out the vulnerable items that have a tendency to go out first, just about every thing else is pretty much bullet proof. If any IC's or Proms go out (small black boxes w/legs) your probably better off just buying a rebuilt unit unless you feel ambitious. I have yet to the put the computer in the Cougar and see what happens. I will let you know.

Interesting...

Reply #21 –
This is what my new resistors look like.

Interesting...

Reply #22 –
I've got an EEC from an '86 5.0 Stang that I'm doing nothing with if it would help your cause...?
'98 Explorer 5.0
'20 Malibu (I know, Chevy, but, 35MPG. Let's go brandon, eh)

Interesting...

Reply #23 –
TBS302, 
            I'll let you know if mine works out alright or not. Thanks for the offer!

Interesting...

Reply #24 –
No worries..it's for an HO engine, so if you decide to buy it, just wanted you to be aware :)
'98 Explorer 5.0
'20 Malibu (I know, Chevy, but, 35MPG. Let's go brandon, eh)

Interesting...

Reply #26 –
So been following this with absolutely no idea what you are trying to do and or accomplish. After replacing all these components what are you expecting will happen???? I for one dont have a clue. I was always of the  belief that those capacitors were a filtering device for rippled ac signals. Now the question is if they are not up to specks will they hurt anything. I am assuming NO. But will give you the benefit of testing it and posting the info. Without the prints on the ECM how can one even know what those components do or are designed to do. ?????????
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

Interesting...

Reply #27 –
I don't think I ever saw a resistor go 'bad' unless it was in the path of a high current overload in which case it's visually obvious.

Not sure what the weak link would be in a board like this but could be PC board opens due to thermal cycles more than faulty components.

I'd be careful with ESD (Electro Static Discharge) when working on the board. Not sure how well the IC's are protected, but they should be pretty robust.

Interesting project, keep us posted.
tbirdregistry.com
26480
27373
 

Interesting...

Reply #28 –
He DID have a dead cap.  Or at least nearly dead.  If the timing problem he was chasing is caused by timing out of phase, it's possible that the PCM was responsible for F-ing up the timing, but it would only affect timing with the spOUT in place.  And we ALL know to pull the spOUT before we set timing.  So, it seems to me that he must have thought this also, and in thinking this way, he pulled the PCM, opened it, and measured components.  He clearly knows how to read a resistor and measure a cap, so I would put forward that he's much more in his element with electronics than driveability, and if he really HAS found his problem, he deserves a pat on the back.  If he hasn't, well, better luck next time.