2000 toyota echo no power

[big rich]

have a lean exhaust good fuel pressure code p0300 & p0171 any help ?

[ctwright]

Originally Posted by big rich

have a lean exhaust good fuel pressure code p0300 & p0171 any help ?

I'm confused. The title says "2000 toyota echo no power".

P0171 means too much oxygen in exhaust and P0300 means multiple missfire which explains the P0171 because of the missfiring.

Here is a site with telling you how to find and solve the problem when you have trouble codes. www.obd-codes.com/P0300

[big rich]

system is lean good fuel pressure, good 02 sensors ,good injectors ????

[Shadab Lodhi]

Error Code: P0171 Fuel Trim (FT), System too Lean, Bank 1
Possible Causes:
- Intake/exhaust leak.
- Secondary air injection (AIR) system.
- Manifold absolute pressure (MAP) sensor.
- Mass air flow (MAF) sensor.
Fuel pressure/pump.
- Injector(s).
- Evaporation emission (EVAP) canister purge valve.
- Heated oxygen sensor.
EOBD II Error Code: P0300 Random/Multiple Cylinder(s) - Misfire Detected.
Possible Causes:
- Air Intake System leaking.
- Fuel Supply faulty.
- Injector(s) faulty.
- Ignition Cable(s) and/or Spark Plug(s) faulty.
- Ignition coil(s).Exhaust Gas Recirculation (EGR) Valve stuck/open.
- Camshaft Position Sensor faulty.
- Weak cylinder compression.