Your first three codes 0026,0028, and 0082 refer to the variable camshaft control system. Since the problem is common to both cylinder banks, You probably an electrical problem, maybe a damaged or disconnected wiring harness to the control solenoids. The other codes are transmission codes which explains your "sport" light coming on. I’ll go out on a limb and say that all of these might be a result of a single problem. If the cable that connects to the solenoids is common with the cable to any of the transmission sensors, you might get lucky and find a sub-harness that has been disconnected or that has some minor damage that has interrupted power to a few devices. To get this conveniently checked out, you can contact Your Mechanic to have a technician come out to your home or office. They can inspect your Subaru and let you know what your next steps should be.
How to Identify and Fix Common car Problems ?
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What the P0026 code means. P0026 is the OBD-II generic code indicating the engine control module (ECM) has determined that the variable valve lift solenoid for the intake valves for bank 1 takes too long to engage or does not engage.
Can You Drive with a P0026 Code? Yes, you can, but you really shouldn`t. Chances are that you can get home alright, but driving with this code present can cause long-term damage to your engine. Messed-up timing of the intake and exhaust cams will lead to premature wear of various components.
The P0028 code is set when the engine control module/powertrain control module (ECM)/(PCM) detects that the intake valve on an engine`s variable valve lift (VVL) isn`t operating as commanded. The intake valve is operated by a solenoid that`s controlled by the engine`s circuitry.
What Does the P0026 Code Mean? Diagnostic trouble code (DTC) P0026 stands for “Intake Valve Control Solenoid Circuit Range/ Performance (Bank 1). It is set when the powertrain control module (PCM) detects that the actual camshaft position does not match the desired camshaft position.
Bank 2 is typically found on the passenger side on the engine block. The solenoid should be located near the intake side on the engine head. Variable valve timing is an important feature on modern engines. This system uses the ECM to control the intake and exhaust valve solenoids to change valve timing.
The dirty engine oil is the culprit cause of the faulty most of the time. Any debris or dirty in the oil will cause the stuck of OCV and VVT. Some Solenoids have oil filter screen inside the valve. Occasionally the faulty is caused by the screen is stuck with dirt.
A valve used to recirculate small amounts of exhaust back into the combustion chambers of the engine in order to decrease the combustion temperature, thereby reducing the formation of smog-producing nitrogen oxides. Fits Outback (2005 – 2009)
The EGR valve is located in the engine compartment (underneath the hood).
The exhaust valve control solenoid is part of the variable valve timing system. The variable valve timing is an important part of modern engines. It allows better acceleration and improves fuel economy.
Bank One is always the bank where cylinder number one is located. On the Corvette it will always be the driver side. Bank Two is the passenger side. Sensor 1 on Corvettes is always the sensor that is closest to the exhaust port of the engine.
The P0156 code sets when Sensor 2 on the Bank 2 side of the engine is malfunctioning. If the oxygen sensor remains at a low voltage for an extended period, or just simply ceases to emit readings, the P0156 code will be triggered by the ECM.
In some cases, the motor may run (not very well) with a broken or damaged variable valve timing solenoid, however it will likely not run for long due to the critical role the VVT solenoid plays in the timing of the motor.
If the VVT solenoid fails or is blocked, the lack of proper lubrication can cause the timing chain and gear to prematurely wear or break entirely. There are several other problems that may occur when a VVT solenoid is wearing out or has broken that may extend to complete engine failure.
Common signs include a rough engine idle, the Check Engine Light coming on, and the engine stumbling when climbing hills or under load.
The 4/2 directional spool valves are direct operated, pressure compensated cartridge valves. They control the start, stop and direction of a flow and basically comprise a housing (1) with a movably mounted socket (2), the control spool (5) and a return spring (4).
Four-way Solenoid Valves (4/2-way Valves):
The two states of this valve allow flow from the pressure port to one of the outlet ports while venting pressure from the other port to the exhaust. There is no normally open or closed position; they mainly act as a directional control valve.
The active valve control system (AVCS) is an automobile variable valve timing technology used by Subaru. It varies the timing of the valves by using hydraulic oil pressure to rotate the camshaft, known as “phasing”, in order to provide optimal valve timing for engine load conditions.
On regular solenoid valves, it can be switched back to the operating position by energizing the solenoid, while on solenoid valves with latch-lock function it will not be so. After being energized, the valve must be manually reset by pushing the reset-knob.
Rusting, power failure, irregular pressure, missing equipment, an incorrect amount of voltage or current, dirt stuck in the system and corrosion are some of the possible reasons why a solenoid valve may not properly close or open.
It recirculates the portion of the gasses coming out of the engine by putting in back into the intake manifold, where the engine can burn it again, thereby reducing the emissions. The EGR valve is located in the engine compartment (underneath the hood).
EGR deleting is the most highly recommended solution. This is achieved by reprogramming the ECU to not use the EGR valve. This will result in cooler engine temperatures straight away, as well as improved throttle response and better fuel economy.
EGR Fraction Based Control
Critical sensors are an exhaust manifold pressure sensor (P2), an intake manifold pressure sensor (P2) and a speed density estimate of total mass flow. Exhaust and intake manifold pressures are used to control the EGR valve and VGT vanes.
P0046 is an error when the wastegate actuator arm is not fully adjusted and calibrated. The powertrain control module (PCM) monitors the turbocharger wastegate control actuator, and checks the rationality of control deviation and control duty cycle range.