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mo_hish · 06-10-2010, 07:17 PM

Ok, so I backprobed some stuff and found a few questionables.
I backprobed the EGI relay, and all 3 wires are getting 12v (with the key on) except for the black/white (power to the ECU?) wire. I'm guessing thats why when we jump the 3 & 5 pins, the ECU gets power. I'm actually pretty sure I get spark with them jumped... It's kind of hard to see, but its there.
Also, I backprobed the ECU checking continuity with ground to see if there was a bare wire touching the chassis or something like that. All the ECU and various sensor grounds that go into the ECU are fine. The ones I'm not sure about are:
Pin 113 (SB) - AAC Solenoid
Pin 45 (G/Y) - Ambient Switch > G > B > FICD
Pin 24 (R) - Check Engine Light (MIL)
Pin 36 (B/R) - Ignition Switch
I had my multimeter set to beep if it was a continuous circuit (1 lead on ground, and checking the pins with the other lead)... with these, it didnt beep, but would sound like static, then if I turned the key to the 'on' position, it would immediately go away. I checked the voltage with the key 'on' and all seemed fine.

06-10-2010, 07:17 PM	#3
mo_hish Zilvia Junkie Join Date: Mar 2009 Location: Philadelphia Posts: 463 Trader Rating: (7)	Ok, so I backprobed some stuff and found a few questionables. I backprobed the EGI relay, and all 3 wires are getting 12v (with the key on) except for the black/white (power to the ECU?) wire. I'm guessing thats why when we jump the 3 & 5 pins, the ECU gets power. I'm actually pretty sure I get spark with them jumped... It's kind of hard to see, but its there. Also, I backprobed the ECU checking continuity with ground to see if there was a bare wire touching the chassis or something like that. All the ECU and various sensor grounds that go into the ECU are fine. The ones I'm not sure about are: Pin 113 (SB) - AAC Solenoid Pin 45 (G/Y) - Ambient Switch > G > B > FICD Pin 24 (R) - Check Engine Light (MIL) Pin 36 (B/R) - Ignition Switch I had my multimeter set to beep if it was a continuous circuit (1 lead on ground, and checking the pins with the other lead)... with these, it didnt beep, but would sound like static, then if I turned the key to the 'on' position, it would immediately go away. I checked the voltage with the key 'on' and all seemed fine.