For forum member. BAC Valve Electrical Question
#26
Rotary Freak
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No. The bac has 12c on it all the time the key is to ON. What makes it work is the ECU putting a ground on it. In the case of a BAC the ground is pulsed on/off 120hz
If im not understanding correctly just say so and I will go with that
#27
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Maybe I missed it...but did the OP try the BAC with the engine running, warm, and unplugging it?
BTW, my BAC valve wasn't in spec. as far as resistance either, but it works just fine. Before replacing the ECU check to make sure you have good continuity between the BAC and ECU.
BTW, my BAC valve wasn't in spec. as far as resistance either, but it works just fine. Before replacing the ECU check to make sure you have good continuity between the BAC and ECU.
#28
HAILERS
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Just replace the transistor.
Or just remove the bac and leave the pug on. Have someone turn the ignition key to ON. You won't find any movement because the ECU isn't putting a gnd on the wire. It ain't a working. The transistor that is.
Or just remove the bac and leave the pug on. Have someone turn the ignition key to ON. You won't find any movement because the ECU isn't putting a gnd on the wire. It ain't a working. The transistor that is.
#29
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Just replace the transistor.
Or just remove the bac and leave the pug on. Have someone turn the ignition key to ON. You won't find any movement because the ECU isn't putting a gnd on the wire. It ain't a working. The transistor that is.
Or just remove the bac and leave the pug on. Have someone turn the ignition key to ON. You won't find any movement because the ECU isn't putting a gnd on the wire. It ain't a working. The transistor that is.
I appriciate all the help HAILERS.
Maybe I missed it...but did the OP try the BAC with the engine running, warm, and unplugging it?
BTW, my BAC valve wasn't in spec. as far as resistance either, but it works just fine. Before replacing the ECU check to make sure you have good continuity between the BAC and ECU.
#30
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I got it working!
I remembered I had a spare ECU so I swapped that in and got the BACV working. I love it!
I did some regrounding on the 4 grounds on the ECU a pins, 2C, 2R, 3A, 3G, but the hesitation is still there. Im going to see if I can get the grounds to be a little better but any other suggestions on the 3800 rpm hesitation point?
I remembered I had a spare ECU so I swapped that in and got the BACV working. I love it!
I did some regrounding on the 4 grounds on the ECU a pins, 2C, 2R, 3A, 3G, but the hesitation is still there. Im going to see if I can get the grounds to be a little better but any other suggestions on the 3800 rpm hesitation point?
#31
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I got it working!
I remembered I had a spare ECU so I swapped that in and got the BACV working. I love it!
I did some regrounding on the 4 grounds on the ECU a pins, 2C, 2R, 3A, 3G, but the hesitation is still there. Im going to see if I can get the grounds to be a little better but any other suggestions on the 3800 rpm hesitation point?
I remembered I had a spare ECU so I swapped that in and got the BACV working. I love it!
I did some regrounding on the 4 grounds on the ECU a pins, 2C, 2R, 3A, 3G, but the hesitation is still there. Im going to see if I can get the grounds to be a little better but any other suggestions on the 3800 rpm hesitation point?
I can remove that EXTRA gnd and make the hesitation come right back in a heartbeat. Reinstall that EXTRA gnd and it goes away in a heartbeat.
Making sure there is a orifice in the boost sensor hose MIGHT help IF it is missing.
Nope. Out of ideas on this. Someone else can give you the answer I reckon.
#32
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Ah thanks for reminding me about the boost sensor. I don't have that small restrictor pill in there. I need to order that.
I will also check the continuity of the grn wires to the actuall pin to see if maybe my soldering job isn't the greatest. It was kinda hard to get the solder to stick to the pin, so I may have to redo them.
I will also check the continuity of the grn wires to the actuall pin to see if maybe my soldering job isn't the greatest. It was kinda hard to get the solder to stick to the pin, so I may have to redo them.
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