Question about 2001 Ford Focus

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I have a focus 2001 with z teck engine

Had a problem with the egr fixed that it has a problem if you try the car in a steady mode it jerks inconstance and when you floor it at around 4200 rpm it want to fall flat on it face

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When i started on this car it had a egr problem and a o2 sensor bank 1 i told the client that those sensors don't affect the engine so it wont stop running they will make the car richer maybe a little shack in the idle but it wont start starving the engine i had told her that it was the fuel pump she goes to the dealer they tell here that the sensor the are defective was here problem they charge here 100.00 dollars to tell here that then she tries to tell the person that she had the car checked and the problem was the fuel pump they said that the pressure test was done and there wasn't a problem with the pump so she brings the car back to me to fix the codes that were coding so i change the o2 sensor and the egr valve no more codes but still the same problem then i put they programmer back on the car to clear the codes then i see in the programmer that there was a pressure reading in it so i go for a road test and when i floor the car the pressure goes down to 5 pounds tell me what the dealers do for 100 dollars when they put the scanner on the car that's why a car mechanic has a bad reputation for the ones that don't do there job like it should be done dealers ****.

Posted on May 30, 2009

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Why is EGR valve opening too much at 1000 RPMS?


The EGR flow rate test is performed during a steady state when engine speed and load are moderate and EGR vacuum regulator duty cycle is high. The monitor compares the actual Differential Pressure Feedback EGR circuit voltage to a desired EGR flow voltage for that state to determine if EGR flow rate is acceptable or insufficient. This is a system test and may trigger a DTC for any fault causing the EGR system to fail.

Does your vehicle have the (DPFE) EGR system ?


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Exhaust Gas Recirculation Flow Insufficient Detected 2002 Ford Crown Victoria LX The car works very good at 60 and I go 35 to city and then when we slow down to city speeds it will have little jerks and we...


P0401 - EGR Flow Insufficient Detected The EGR system is monitored during steady state driving conditions while the EGR is commanded on. The test fails when the signal from the DPF EGR sensor indicates that EGR flow is less than the desired minimum.
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Perform KOER self-test and look for DTC P1408 as an indication of a hard fault. If P1408 is not present, look for contamination, restrictions, leaks, and intermittents.
not likely the PCM, engine computer. they seldom go bad.
report back findings.

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Hi, I have a ford Mondeo duratec diesel 2.0l 2001 reg. I had the misfortune of hitting a bad flood during the heavy rain back in November last, bent a conrod etc. Got all fixed had the car back a few hours...


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I have a 2001 Ford Focus. The service engine light came on. The diagnosis was I need to repalce the EGR value. Where is it located and can I do this myself. Also how do you determine if it is a SOHC or...


Not sure what your diagnosis was but usually it is not the valve that goes bad. Its usually the DPFE sensor. Both these parts are easty to replace. The EGR valve looks like a flying saucer on top of the engine with a vacuum line going to it. Its most likely green line. The DPFE isnt far away from it. There are two lines going to it and an electrical connector.

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IT ALMOST SOUNDS LIKE YOU MAY HAVE A VACUUM LEAK SOMEWHERE. USE A LENGTH OF RUBBER HOSE AND HOLD IT UP TO YOUR EAR TO PIN-POINT THE LOCATION OF A VACUUM LEAK. HOPE THIS HELPS. LET ME KNOW PLEASE. THANK YOU IN ADVANCE FOR AN HONEST RATING AND THANKS FOR USING FIX-YA. P.S. EGR VALVE IS VACUUM ACTUATED

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