ZR-1 Net Registry Forums - View Single Post

mike100 · 12-20-2011

I think it's the port throttle vacuum sensor for the secondaries fault.

as per google search for 94/95 LT5 code listing:

Secondary Air Inlet Valve Actuator Vacuum Sensor Circuit (Signal Voltage High “High Vacuum or Signal Voltage Low” (Low Vacuum)-The map sensor and hose under the ecm bracket.

I could verify when I get home as I still have a 95 Y-car FSM

12-20-2011	#2
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,786	Re: DTC 56 I think it's the port throttle vacuum sensor for the secondaries fault. as per google search for 94/95 LT5 code listing: Secondary Air Inlet Valve Actuator Vacuum Sensor Circuit (Signal Voltage High “High Vacuum or Signal Voltage Low” (Low Vacuum)-The map sensor and hose under the ecm bracket. I could verify when I get home as I still have a 95 Y-car FSM Last edited by mike100; 12-20-2011 at 04:43 PM.