Should I open up the Ecu and check it out?
Edited by Prwa101, 16 July 2012 - 06:32 PM.
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Posted 16 July 2012 - 06:23 PM
Edited by Prwa101, 16 July 2012 - 06:32 PM.
Posted 18 July 2012 - 05:00 PM
Posted 18 July 2012 - 06:08 PM
Posted 18 July 2012 - 06:52 PM
Posted 19 July 2012 - 08:23 PM
Posted 19 July 2012 - 08:32 PM
Posted 19 July 2012 - 09:28 PM
Posted 23 July 2012 - 06:32 PM
Edited by Prwa101, 23 July 2012 - 08:10 PM.
Posted 23 July 2012 - 11:10 PM
Posted 25 July 2012 - 07:01 PM
Pardon me if I'm completely blunt about this and don't take it personally cause you are learning and that's ok.....
You haven't got the first clue how to run a meter and check what needs checking. Either that or I'm not grasping how you are describing what you are testing.
"F47 (D) pin 14 and 15 are grounds, power supply and igniting,"
Is not making any sense. A pin is either a ground source for the ECU or it's a power supply to the ECU.... or it has another function. They can't be both.
These voltages you are reading are meaningless "ghost" voltage. Numbers like .5 and .6 volts are effectively zero for the purposes of troubleshooting and a reading going up 0.1v when you ground a pin on the ECU is effectively no change at all. That's not in the granularity of what you are looking for. You should be looking for 12v at the pins supplying power and you should be looking for 0 (Zero) Ohms of resistance when probing a ground pin - both tests are done with the ECU hooked up and probing from the back side of the connection.
You need some guideance here but I'm not totally sure how to help you. I don't have the time to get out there myself and I'm sure you probably don't want to tow the thing down to my shop so..... the only thing I can think is to have you hang out at the shop when I'm troubleshooting something of this nature.
Edited by Prwa101, 25 July 2012 - 07:46 PM.
Posted 25 July 2012 - 08:02 PM
Posted 25 July 2012 - 08:40 PM
Posted 25 July 2012 - 08:44 PM
Posted 27 July 2012 - 12:38 AM
Posted 27 July 2012 - 09:16 AM
Posted 27 July 2012 - 09:18 AM
Posted 27 July 2012 - 02:20 PM
i suggested this (albeit without diagram) very early in this thread
Maybe this will help, its how the fuel pump is wired stock in an ea82, assuming thats what your swaping into. And hear is were I think your problem is, in the ea82 system the ground for the fuel pump its self is done though the ecu but this is not the case with the EJ ecu, in the ej system the fuel pump is just grounded to the body. So try grounding the black wire at the fuel pump and see if that works. Also be sure your using the control wire comeing off the EJ ecu to ground the control side of the fuel pump relay. And for powering the control on the really use a hot at all times power source and not the power out of the ignition relay use that on the switched side to send power to the pump.
I also suggest you put away the volt meter and get your self a test light its a lot better for work like this were all you care about is 12v power and ground, and will help to keep you getting confused with meaningless 2 and 3 and half volt readings.
Posted 29 July 2012 - 09:02 PM
Edited by Prwa101, 29 July 2012 - 10:35 PM.
Posted 30 July 2012 - 08:03 AM
Do you have all the ecu grounds wired up.
Posted 01 August 2012 - 12:03 PM
Posted 04 August 2012 - 11:17 PM
All the ECU grounds happen at the engine harness.
You need to have the intake harness plugged into the main harness, and the ground eyelet grounded to the intake.
Without that, the ECU won't have ground sources.
Posted 05 August 2012 - 06:17 PM
Posted 06 September 2012 - 08:52 PM
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