Question about 2000 Ford Focus
I check for the code because the check engine light was on, it had p0320, &p0113, I replaced the fuel pump, Fuel filter tune-up but the problem still persist. Any suggestions???
Intake Air Temperature IAT Circuit Low Input Indicates the sensor signal is less than Self-Test minimum. The IAT sensor minimum is 0.2 volts or 250f. Grounded circuit in harness Damaged sensor Improper harness connection Damaged PCM IAT V PID reading less than 0.2 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault.
P0113 Misfire Detection Monitor The misfire detection monitor is designed to monitor engine misfire and identify the specific cylinder in which the misfire has occurred. Misfire is defined as lack of combustion in a cylinder due to absence of spark, poor fuel metering, poor compression, or any other cause. Ignition system Fuel injectors Running out of fuel EVAP canister purge valve Fuel pressure Evaporative emission system Base engine The MIL will blink once per second when a misfire is detected severe enough to cause catalyst damage. If the MIL is on steady state, due to a misfire, this will indicate the threshold for emissions was exceeded and cause the vehicle to fail an inspection and maintenance tailpipe test.
Posted on Dec 29, 2013
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Posted on Jan 02, 2017
I recommend getting a repair manual from an auto store for your vehicle. They run $15 to $20. It will tell you exactly how to do everything you asked and also give you the values that should be expected. Hope this helps.
Posted on Feb 08, 2009
It sounds from your description that the fuel pump is weak. To check the fuel pressure you need a fuel pressure test gauge for fuel injection. Attach the gauge to the test port schrader valve and turn the ignition to the on position. Record the reading. Now start the engine and record that reading. Unplug the pressure regulator vacuum line and record the reading.
The pump should have pressure with in specs but if low, start with the installation of a new complete pump. It is located in the fuel tank. Also replace your fuel filter.
Hope this helps you.
Posted on May 12, 2009
Are you sure that you need to replace the pump? I drive a 54 plate mk2 1.6 zetec that wouldn't always start and I was told it was the fuel pump in the tank but because the fault was intermitant I didn't have it fitted and found out that the car didn't start because the fuel lift pump wasn't priming the system before starting. I found that there was a faulty connection on the relay for the pump that is in the compartment under the glove compartment.
Posted on Oct 26, 2009
if you have a bad spark plug wire, it will draw condensation and make engine run rough.... you can check this by getting a spray bottle and filling it with water, spray a mist over top of the wires while the car is running, and if one is bad it will show.... (looks like little lightning coming off of wire) .... hope this helps
Posted on Mar 23, 2010
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