It doesnt accelerate once any boost starts to build around 2300 rpms. Starts to shake and hesitate. Air fuel ratio dont change stays 14 - 15 no matter what rpm im at. Unplugged and cleaned maf no change. P0171 adaptive fuel trim too lean bank 1, p0300 multiple misfire, p2009 vtcs control solenoid valve circuit input low. Runs smooth at idle so i dont think coils or plugs are an issue.
not necessarily, an ignition coil can misfire at high RPM or under load at low RPM, but can allow the engine to idle perfectly smooth.
however, you have a lean condition so i would check for vacuum leaks and inspect your o2 sensors.
code p0171
- Inspect all vacuum and PCV hoses, replace/repair as required
- Inspect all hoses and connections in the air intake system Inspect and/or test the intake manifold gaskets for leakage
- Check for a dirty fuel filter and proper fuel pressure
- Ideally you'll want to monitor short and long term fuel trims using an advanced scan tool
- If you have access, you may want to run a smoke test
Read more at:
https://www.obd-codes.com/p0171
code p0300:
- Faulty spark plugs or wires
- Faulty coil (pack) Faulty oxygen sensor(s)
- Faulty fuel injector(s) Burned exhaust valve
- Faulty catalytic converter(s)
- Stuck/blocked/leaking EGR valve / passages
- Faulty camshaft position sensor
- Defective computer
Read more at:
https://www.obd-codes.com/p0300
code p2009
- Loose or binding intake manifold runners
- Defective IMRC actuator solenoid
- Bad intake manifold runner position sensor
- Open or shorted wiring in the IMRC actuator solenoid control circuit
- Carbon buildup on the IMRC flaps or intake manifold ports
- Faulty MAP Sensor Corroded IMRC actuator solenoid connector face
Read more at:
https://www.obd-codes.com/p2009
good luck