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My 2012 cruze eco it's giving me these codes this started happening when i did an oil change and wash the engine, i'm getting p0237, p0236, p2227 p0068 in that order it algo goes into limp mode, i already put a new boost sensor, tested map and maf, i looked for any cracked pipes or vaccum lines, ripped wires and nothing seems to be wrong i also cleaned the grounds swap the battery and nothing is working, i don't know how to check if i'm getting the right amount of boost, i don't have a fancy scan tool i only have the toque pro app
Any ideas?
Btw if my grammar it's bad i'm sorry english it's my second language
Thanks
 

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My 2012 cruze eco it's giving me these codes this started happening when i did an oil change and wash the engine, i'm getting p0237, p0236, p2227 p0068 in that order it algo goes into limp mode, i already put a new boost sensor, tested map and maf, i looked for any cracked pipes or vaccum lines, ripped wires and nothing seems to be wrong i also cleaned the grounds swap the battery and nothing is working, i don't know how to check if i'm getting the right amount of boost, i don't have a fancy scan tool i only have the toque pro app
Any ideas?
Btw if my grammar it's bad i'm sorry english it's my second language
Thanks
Welcome Aboard!(y)

I would start by getting some canned air or a compressor, some electrical contact cleaner and unplug each electrical connector, blow them out, spray with contact cleaner and re-blow it out then reconnect them. I would also clean the MAF with MAF cleaner.

Next I would do a boost leak test.

How-To: Boost leak testing gen 2 1.4L turbo gas

GM 1.4L Turbo Boost & Coolant Leak Testing Kits



Potential causes for this code, P0237, to set are:

Faulty boost sensor "A"
Faulty turbocharger
Faulty PCM Wiring problem
Read more at: P0237 Turbocharger/Supercharger Boost Sensor A Circuit Low

Potential causes for this code, P0236, to set are:

Vacuum supply
Pinched, collapsed or broken vacuum lines
Faulty control solenoid
Faulty PCM
Read more at: P0236 Turbocharger Boost Sensor A Range Performance

Symptoms of a P2227 trouble code may include:

Lack of engine power and performance (or limited)
Engine misfiring Abnormal engine noise(s)
Fuel smell
Decrease in the fuel economy
Decreased throttle responsiveness
Read more at: P2227 Barometric Pressure Sensor A Range/Performance

Potential causes for this DTC, P0068, include:

Vacuum leaks between the mass airflow sensor and intake manifold and loose or cracked hoses
Dirty air cleaner
Leak in the intake manifold or sections
Faulty sensor
Coked intake runner behind throttle body
Poor or corroded electrical connectors
Obstruction to air flow
Defective electronic throttle body
Obstruction in hose from intake manifold to MAP sensor
Read more at: P0068 MAP/MAF - Throttle Position Correlation DTC

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