Code p0026 present. idle is low, check engine light on and cruise control light on. not to mention my catalytic converter is smoking.

I researched these codes and found the following suggestions.Has your vehicle gone into limp mode (i.e.-check engine light is on &/or vehicle isn't making its normal power output??) Check your transmission fluid with the engine warm and at idle and if it's low,fill it to the appropriate level.P0700 is normally set when the tcm detects a fault.This is a common fault code in this model.Low/dirty transmission fluid can cause two sensors inside the transmission to short out requiring you to replace them.P0571 is related to the brake/cruise control switch, which is connected to your brake pedal.This operates your brake lights and deactivates the cruise control when you step on the brake pedal to slow down/stop.Have someone verify your brake lights are working and also make sure they're not remaining on after the pedal is released as non functioning brake lights could cause an accident.If your cruise control is working,verify it is shutting off when you press the brake pedal down.If it's not shutting off,that could also be dangerous too just like no brake lights.If it's not shutting off,check the switch to make sure it hasn't been knocked loose from the pedal and check the wiring harness also to make sure it's still connected.Check any fuse for the cruise control and brake lights also.
If the transmission fluid is low and you top it off and if you correct any condition present with the cruise/brake light switch,clear the codes with a scanner or get AutoZone/Etc to do it for free to see if the codes clear and remain that way.

Have it check for DTC'S - diagnostic trouble codes . If the check engine light starts flashing , park it . The flashing check engine light is telling you there is a catalytic converter damaging miss fire happening . An they can be damaged very easy .

Don't have emission testing where you live ? Take the bulb out of the dash ! You illegal anyway !

replace this oil control valve subaru part number 25240aa060

its the most common cause of the code p0026

overheating? low oil in crank case?low coolant ,maybe have catalytic converter checked if smells like rotten eggs!!!

you should check the wires and the plug on thje ccv vent control solenoid, if they look good replace the solenoid, get the catalytic converter checked at a shop, a clogged cat can cause some of the other codes.

Possible causes are:-
- Dirty engine oil
- Low engine oil level
- Intake valve control solenoid circuit open or shorted
- Intake valve control solenoid circuit poor electrical connection
- Faulty intake valve control solenoid

the test will show as many problems/codes as are present in the memory of the PCM. (power train control module) If u were charged for this repair he or she did not do the job of diagnosing the code properly, they guessed, the reason for this is only the dealer has the correct equip to work on your Subaru and try and get it fixed right the 1st time, that is why dealer costs are higher, tech training and lots of expensive test gear.

It probably is the converter. The check engine light has nothing to do with maintenance at all, nor does it really directly concern the engine. The check engine light comes on for emmission purposes. Such as converter, loose gas cap and all kinds of sensors.

There are many reasons for a PO171 code, these need to be checked before replacing O2's:

Vehicle driven low on fuel or until it ran out of fuel

One or more injectors restricted or pressure regulator has failed

Fuel delivery system supplying too much or too little fuel during cruise or idle periods (e.g., faulty fuel pump, or dirty fuel filter)

Air leaks after the MAF sensor, or air leaks in the PCV system

Air leaks at the EGR gasket, or at the EGR valve diaphragm

Exhaust leaks before or near where the front HO2S is mounted

HO2S is contaminated, deteriorated or it has failed

Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)

Base engine "mechanical" fault affecting one or more cylinders.