Trouble code P1656 means:Oil control valve OCV circuit malfunction bank 1
ocv is located in front of engine on passanger side of car sticking uo through valve cover has 2 pin black connector hope this help
The oil control valves (OCV) are located between the cylinders on the drivers side. Bank 1 OCV is below the throttle body. Bank 2 is above the starter.
The OCV 's are on the front of each cylinder head towards the intake plenum www.lextechautomotivellc.com
P0010 - "A" Camshaft Position Actuator Circuit (Bank 1)Car will run roughCould beFaulty oil control valve (OCV)Open or short in the VVT/VCT circuitOpen or short in the OCV / solenoid valveDamaged computer (PCM)CheckCheck the Bank 1 VVT/VCT system circuit wiring and connectors, repair if neededWarm up the engine, test the operation of the OCV, replace or repair if necessary
P0010 - "A" Camshaft Position Actuator Circuit (Bank 1)Car will run roughCould beFaulty oil control valve (OCV)Open or short in the VVT/VCT circuitOpen or short in the OCV / solenoid valveDamaged computer (PCM)CheckCheck the Bank 1 VVT/VCT system circuit wiring and connectors, repair if neededWarm up the engine, test the operation of the OCV, replace or repair if necessary
P0010 - "A" Camshaft Position Actuator Circuit (Bank 1)Car will run roughCould beFaulty oil control valve (OCV)Open or short in the VVT/VCT circuitOpen or short in the OCV / solenoid valveDamaged computer (PCM)CheckCheck the Bank 1 VVT/VCT system circuit wiring and connectors, repair if neededWarm up the engine, test the operation of the OCV, replace or repair if necessary
P0010 - "A" Camshaft Position Actuator Circuit (Bank 1)Car will run roughCould beFaulty oil control valve (OCV)Open or short in the VVT/VCT circuitOpen or short in the OCV / solenoid valveDamaged computer (PCM)CheckCheck the Bank 1 VVT/VCT system circuit wiring and connectors, repair if neededWarm up the engine, test the operation of the OCV, replace or repair if necessary
P0010 - "A" Camshaft Position Actuator Circuit (Bank 1)Car will run roughCould beFaulty oil control valve (OCV)Open or short in the VVT/VCT circuitOpen or short in the OCV / solenoid valveDamaged computer (PCM)CheckCheck the Bank 1 VVT/VCT system circuit wiring and connectors, repair if neededWarm up the engine, test the operation of the OCV, replace or repair if necessary
Oil control valve. This might help even though its not an echo, its very similar: http://www.newcelica.org/forums/showthread.php?t=249837
P0010 - "A" Camshaft Position Actuator Circuit (Bank 1)Car will run roughCould beFaulty oil control valve (OCV)Open or short in the VVT/VCT circuitOpen or short in the OCV / solenoid valveDamaged computer (PCM)CheckCheck the Bank 1 VVT/VCT system circuit wiring and connectors, repair if neededWarm up the engine, test the operation of the OCV, replace or repair if necessary
P0010 - "A" Camshaft Position Actuator Circuit (Bank 1)Car will run roughCould beFaulty oil control valve (OCV)Open or short in the VVT/VCT circuitOpen or short in the OCV / solenoid valveDamaged computer (PCM)CheckCheck the Bank 1 VVT/VCT system circuit wiring and connectors, repair if neededWarm up the engine, test the operation of the OCV, replace or repair if necessary