errer codes

cre · 11-04-2009, 01:16 AM

Well, the first line of business would be testing for voltage drop across +B and +B1 at the ECU.

This is more than you need to look at, but it shows the ECU pinout:
http://www.cygnusx1.net/Supra/Librar...ection=FI&P=30

Might also test to see what the drop is across the Batt line as well.

I suspect you're looking at either a bad EFI relay or some bad wiring.

11-04-2009, 01:16 AM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Well, the first line of business would be testing for voltage drop across +B and +B1 at the ECU. This is more than you need to look at, but it shows the ECU pinout: http://www.cygnusx1.net/Supra/Librar...ection=FI&P=30 Might also test to see what the drop is across the Batt line as well. I suspect you're looking at either a bad EFI relay or some bad wiring.