Jul 11 2008
2000 Echo – car wants to stall
Question:
I have a 2000 Toyota Echo, it has been in the garage for 2 weeks now, the engine is running properly at idle but as soon as you accelerate the car wants to stall. the mechanic cannot find what it is. he has verified the fuel pressure, the valves and most basic things and still does not know what it is. he tried blaming it on my timing chain which was loose but after putting a new chain and tensioners on it still has the same issue. Anyone have any ideas??
Answer:
Take the mass airflow sensor out and clean the resistor wires with some electrical contact cleaner or carb cleaner blow it dry with compressed air and try that. If you look down in the sensor you will probably find that the sensor wires are all fuzzy. Normally this sets a P0171 lean code but not always. It will make the car hesitate and run very sluggish on acceleration.
Carb cleaners may crack the plastic housing. Use a cleaner specifically designed for Mass Air Flow sensors. CRC make one.