General Discussion Area > General Chat

ECU's and Electronics

<< < (2/4) > >>

Scott:
Unfortunately the ford forums are ghost towns these days since bookface killed most of them. 
But there is still info in them.  You just have to search through.  You'll most likely have to join up to a few to search properly.  I know I did. (03 BA XR6T owner here)
The turbo forums will probably have more info, as they are more enthusiast based, rather than P platers talking about rimz.

The info on the face book groups can be very hit and miss.  Lots of people who know nothing giving suggestions with no back-up knowledge.

bfit:
Post here
See what input you get

https://www.corvetteforum.com/forums/c4-tech-performance-48/

Vettech:
Thanks Guys, been thru the ropa dope today with Ford HQ who only have a girl, who fobs you off to your local dealership, who answers, records your question and then dont come back, and they will not let a mechanic or tech  talk directly to you.

The Private "ECU Repairer" cant answer the simplest questions. Change attach, search Mitsubishi Alt and not ECU.

Surfed today and found that the BA has a simple Alt not a smart one like the next Ford model, these use PWM (pulse width modulation) at about 128hz from the ECU to adjust current output (controls the field winding), but either way the volts range should ONLY vary from 13.8 ~ 14.4Vdc.

OK - so the ECU doesnt get involved with the Alt, good thing I didnt pull the ecu apart, esp since it looks to be "epoxy or tar/ silastic filled", I suppose I better bolt her back in place, I only ground the "security rivets" off at the top.

But interestingly, it appears that high output can be a symptum of faulty wires - the two thin ones in the plug or even Earths, since the Alt frame is its earth and of course it is bolted directly to the block, but there should be wires to earth the block to frame to chassis and battery......

Now I degreased then washed with solvent the 2x wire plug but it was a bit dodgey, hope tomorrow is fine, time for more checks.

Now for roast chicken dinner.....

bfit:
I have a multimeter screwdriver and a 2lb hammer send it over and I’ll look at it for you.
Bfit
Seriously it’s an alternator not a iPhone it’s only a generator with a rectifier . What do you want it to do.

Vettech:
All new style Alternators are.

1. Three (3) phase AC voltage alternators
2. Utilise three phase full wave rectification.
3. Normally self excited via a second set of smaller diodes.
4. On board constant voltage controll circuit.(13.8~14.4)

Three phase supplies greater current output in a smaller package.
By controlling the field windings the current can be adjusted from a couple of amps up to the rated output (ie; 110Amps)
The three phase full wave gives a smoother, flatter DC output, less ripple means less noise in audio etc ccts.

Regards.

And generators are DC output

Navigation

[0] Message Index

[#] Next page

[*] Previous page