Question about Goodman Heating & Cooling
Peugteo 206 1999 petrol 5dr hatchback
Posted by Anonymous on
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Posted on Jan 02, 2017
DIFFICULT STARTING CAR IN COLD.WOULD BE A THERMO - TIME SWITCH.THE THERMO TIME SWITCH CONTROLS THE AMOUNT OF TIME THE COLD START VALVE IS HELD OPEN BY MEASURING THE COOLANT TEMPERATURE AND UTILIZING A TIME FUNCTION TO PREVENT AN OVER RICH CONDITION.THIS COULD BE MOST OF YOUR PROBLEM.BUT SCAN IT TO SEE WHAT PCM CODE YOU ARE GETTING.
Posted on Sep 07, 2009
EGR stands for Exhaust Gas Recirculation. It is part of the vehicle
emmissions system, and is used to reduce combustion temperature and
pressure to control Oxides of Nitrogen. There are generally three parts
to the EGR system: the EGR valve, an actuator solenoid, and a
differential pressure sensor EGR (DPFE). These things work together to
deliver the correct amount of recirculation based on engine temperature,
load, etc. The P0401 code means that OBD detected an insufficient
amount of EGR.
You may notice drivability problems such as pinging (a.k.a. pre-ignition knock) when the engine is under load or the vehicle is at higher speeds. There may also be other symptoms.
A code P0401 most likely means one or more of the following has happened:
* The DPFE (differential pressure feedback EGR) sensor is faulty and needs to be replaced
* There is a blockage in the EGR (tube), most likely carbon buildup
* The EGR valve is faulty
* The EGR valve may not be opening due to a lack of vaccuum
For several solutions ans next steps, in fixing this code, it is quite common for people to just replace the EGR valve only to have the OBD code return. The EGR valve is not always the culprit:
* Use a vacuum pump and pull the EGR valve open while monitoring engine RPM's & DPFE voltage. There should be a noticable difference in RPM's with the EGR open
* Clean out the EGR valve and/or tubing to remove deposits
* Check the voltage at the DPFE, compare to specified values (refer to a repair manual for your specific model)
* Replace the DPFE sensor (with a good quality / OEM one)
* Replace the EGR valve
Hope this helped (remember comment and rated this).
Posted on May 05, 2010
Have you looked at your idle air control valve
What is it? This is an electrically driven valve that allows additional
control over the throttle at idle
Where is it located? The IAC is located on or adjacent to
the throttle body and consists of a small device held on by two bolts with an
How does it work? When the throttle is closed the throttle plate closes off any air from the intake manifold. In order to stop the engine from stalling due to lack of air the IAC opens a small valve allowing air to pass from the air ducting to the intake manifold. Often the IAC components consist of an air inlet port in the inside wall of the throttle body, immediately in front of the throttle plate, with a similar exit port behind the throttle plate. Connecting the two ports is a motor driven valve. When the valve is opened air effectively by-passes the closed throttle plate to maintain the engine at idle. The IAC also augments the throttle when additional power demands are put on the engine such as steering.
Symptoms of faulty IAC
How to check? Physically remove the IAC but keep the electrical connection to it. Temporarily block off the now open ports on the throttle, turn the engine on and examine the IAC valve action in response to additional loads (power steering inputs etc). The valve should open and close according to demand.
How to fix? If the motor of the IAC has failed then replace the IAC. If the valve is gummed closed by baked oil and carbon then clean it thoroughly with carburetor choke cleaner spray and a cloth. Similarly if the entry and exit ports on the throttle body to the IAC look blocked again clean them out thoroughly.
Posted on Jun 03, 2010
Testimonial: "Fast response and good advice, I'll try these suggestions and let you know the results."
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Posted on Dec 27, 2010
honda civic forum
you may also like the link below it is a 2005 civic sedan online reference owners manual in PDF format.
Posted on Aug 25, 2011
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