Exhaust cutout troubleshooting. Electrical? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Mhorn0817 · 08-13-2022, 02:43 PM

I'm trying to figure out what my issue is or could be with my exhaust cut outs. Right side opens and closes but the left side will only close and not open.

I bench tested the motor on and off the car and it spins both ways. I just replaced the switch because of a frayed wire. I swapped plugs around from side to side and the issue still stays on the left side.

Does anybody have any ideas what it could be? I figured if it works one way then it should work the other way since it's just a 2 way polarity switch setup.

bottletalk · 08-13-2022, 02:57 PM

When u say u swapped plugs around do u mean that u tried the left side on the right side wires and the left side on the right sides wires with the same results?

Mhorn0817 · 08-13-2022, 03:01 PM

Correct.

bottletalk · 08-13-2022, 03:07 PM

what brand? check if there are switches on the valve, sounds like there's an issue, I do know they fail in the closed position which sounds like is happening to u.

Mhorn0817 · 08-13-2022, 03:59 PM

QTP.

There is no switch on the valve. It works fine off the car. It works fine if I plug it into the right side.

bottletalk · 08-13-2022, 04:25 PM

put a meter on the plugs and verify your polarity flip, I'd start by checking that switch you replaced....sounds like the contact configuration might be different, wired wrong or defected.
Metering the plug will at least tell u what is and isn't happening.

bottletalk · 08-13-2022, 04:37 PM

was this working right before you changed the switch?

Mhorn0817 · 08-13-2022, 04:42 PM

Was not working before hand. Found out the wiring at the switch was burnt up. Bought a new switch from qtp with the wiring and put it in and still the same thing.

bottletalk · 08-13-2022, 05:20 PM

did u meter it?

bottletalk · 08-13-2022, 05:26 PM

is the switch a double pole? (is half the switch for the left side and the other for the right side?
If it is, swap the motor wires so the left is on the right and the same for the other side, see if the problem changes sides too.

bottletalk · 08-13-2022, 05:30 PM

Is this your switch?

Mhorn0817 · 08-13-2022, 05:41 PM

I have not had a chance to meter it yet.

Yes that is the type of switch it is.

I switched the motor plugs coming off the switch and the problem still stays on the left side. It does not move side to side.

bottletalk · 08-13-2022, 06:51 PM

hang on, u lost me. first u said the left motor works fine if you plug it into the right side but now the left motor doesn't work regardless which side u plug it into but works when u bench test it?

Mhorn0817 · 08-13-2022, 07:07 PM

The system has a toggle switch with a small harness attached. Red goes to power and black goes to ground. The other 2 wires get plugged into a separate harness that runs to the exhaust cutouts. The exhaust cutouts then get plugged into that intermediate harness .

I removed the left motor from the intermediate harness and plugged it into the right side and it still works.

I also tried swapping the 2 plugs at the toggle switch side and that made no difference side to side.

08-13-2022, 02:43 PM	#1
Mhorn0817 Drives: 2011 Camaro ss Join Date: Jan 2020 Location: Bowie, MD Posts: 105	Exhaust cutout troubleshooting. Electrical? I'm trying to figure out what my issue is or could be with my exhaust cut outs. Right side opens and closes but the left side will only close and not open. I bench tested the motor on and off the car and it spins both ways. I just replaced the switch because of a frayed wire. I swapped plugs around from side to side and the issue still stays on the left side. Does anybody have any ideas what it could be? I figured if it works one way then it should work the other way since it's just a 2 way polarity switch setup.

08-13-2022, 02:57 PM	#2
bottletalk Drives: 15 Camaro 2SS M6 Join Date: Jan 2020 Location: BC Posts: 732	When u say u swapped plugs around do u mean that u tried the left side on the right side wires and the left side on the right sides wires with the same results?

08-13-2022, 03:01 PM	#3
Mhorn0817 Drives: 2011 Camaro ss Join Date: Jan 2020 Location: Bowie, MD Posts: 105	Correct.

08-13-2022, 03:07 PM	#4
bottletalk Drives: 15 Camaro 2SS M6 Join Date: Jan 2020 Location: BC Posts: 732	what brand? check if there are switches on the valve, sounds like there's an issue, I do know they fail in the closed position which sounds like is happening to u.

08-13-2022, 03:59 PM	#5
Mhorn0817 Drives: 2011 Camaro ss Join Date: Jan 2020 Location: Bowie, MD Posts: 105	QTP. There is no switch on the valve. It works fine off the car. It works fine if I plug it into the right side.

08-13-2022, 04:25 PM	#6
bottletalk Drives: 15 Camaro 2SS M6 Join Date: Jan 2020 Location: BC Posts: 732	put a meter on the plugs and verify your polarity flip, I'd start by checking that switch you replaced....sounds like the contact configuration might be different, wired wrong or defected. Metering the plug will at least tell u what is and isn't happening.

08-13-2022, 04:37 PM	#7
bottletalk Drives: 15 Camaro 2SS M6 Join Date: Jan 2020 Location: BC Posts: 732	was this working right before you changed the switch?

08-13-2022, 04:42 PM	#8
Mhorn0817 Drives: 2011 Camaro ss Join Date: Jan 2020 Location: Bowie, MD Posts: 105	Was not working before hand. Found out the wiring at the switch was burnt up. Bought a new switch from qtp with the wiring and put it in and still the same thing.

08-13-2022, 05:20 PM	#9
bottletalk Drives: 15 Camaro 2SS M6 Join Date: Jan 2020 Location: BC Posts: 732	did u meter it?

08-13-2022, 05:26 PM	#10
bottletalk Drives: 15 Camaro 2SS M6 Join Date: Jan 2020 Location: BC Posts: 732	is the switch a double pole? (is half the switch for the left side and the other for the right side? If it is, swap the motor wires so the left is on the right and the same for the other side, see if the problem changes sides too.

08-13-2022, 05:30 PM	#11
bottletalk Drives: 15 Camaro 2SS M6 Join Date: Jan 2020 Location: BC Posts: 732	Is this your switch?

08-13-2022, 05:41 PM	#12
Mhorn0817 Drives: 2011 Camaro ss Join Date: Jan 2020 Location: Bowie, MD Posts: 105	I have not had a chance to meter it yet. Yes that is the type of switch it is. I switched the motor plugs coming off the switch and the problem still stays on the left side. It does not move side to side.

08-13-2022, 06:51 PM	#13
bottletalk Drives: 15 Camaro 2SS M6 Join Date: Jan 2020 Location: BC Posts: 732	hang on, u lost me. first u said the left motor works fine if you plug it into the right side but now the left motor doesn't work regardless which side u plug it into but works when u bench test it?

08-13-2022, 07:07 PM	#14
Mhorn0817 Drives: 2011 Camaro ss Join Date: Jan 2020 Location: Bowie, MD Posts: 105	The system has a toggle switch with a small harness attached. Red goes to power and black goes to ground. The other 2 wires get plugged into a separate harness that runs to the exhaust cutouts. The exhaust cutouts then get plugged into that intermediate harness . I removed the left motor from the intermediate harness and plugged it into the right side and it still works. I also tried swapping the 2 plugs at the toggle switch side and that made no difference side to side.