Jump to content

Alternator control and other issues


Recommended Posts

Afternoon all.

Im looking for a bit of advice. Is there anyway in which the alternator charge can be controlled by the ecu. The stock unit was wired into the ecu so im assuming it was controlled to some degree. I know evos have an ecu controlled ecu so this may be similar.

Its on a ford duratec 30 V6 engine. Im wiring it up this week and dont want to spike the ecu if it decides to charge up to full if I get her to start. 

The TPS seems to be weird as when you watch TPS main when moving the throttle it goes up in thirds ie 33% 66% etc wiring seems fine. Any ideas?

Both the IAT and ECT are sitting at -40 no faults are showing. There standard ford NTC sensors I think


Link to comment
Share on other sites

For the TPS check the raw voltage reading. It should span smoothly if its moving in steps then there is an issue with the sensor.

The Ford sensors will likely not be a conventional scaling you could try the Ford Falcon CHT sensor cal this is from a cylinder head temp sensor for the Ford falcon BA.

If this is not correct you will need to do a custom cal.  

Link to comment
Share on other sites

On the EVO's we don't control the alternator. In some cases it is a pure feed back to let the ECU know its charging.

It will depend on the signal required from the alternator. The ECU can do a PWM output based on battery voltage.   

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...