View Full Version : Starving for fuel
Jason35
Jun 26, 2013, 07:59 PM
I have a 1994 mazda b3000. I changed the oil and thermostat and now when I start my truck cold, it does fine for 20 or so seconds then acts like its starving for fuel. Then I feather the gas and drive away. After a couple of minutes driving, the problem is gone. Idles fine at stops. Any ideas?
TxGreaseMonkey
Jun 27, 2013, 05:19 AM
Replace the Engine Coolant Temperature (ECT) Sensor, which affects fuel injector pulse width. The ECT Sensor is a temperature dependent resistor (thermistor), whose resistance decreases as the engine coolant temperature increases. It provides a richer mixture when cold, leaner mixture when hot. They become corroded, due to not changing the coolant frequently enough, flood the engine, and waste a tremendous amount of fuel.
Ensure you installed the correct temperature rating thermostat (OEM) for your truck and that you installed it correctly.
CaptainRich
Jun 28, 2013, 05:10 AM
It might be time to have the throttle body inspected and cleaned as necessary. Maybe the injectors, too.