hello everyone!

[adams0]

Josh here. I am looking for the sensor values for my 1999 ford taurus 3.0 liter (OHV) .I have a scan tool that showes display data.I have the sensor values for hot and cold running temps.My (MIL) is on code po0401 egr insufficiant flow.In the last couple of months I have noticed one of the catalyst converters sounds like it breaking up in the inside.Also my car is really running like crap because it is in bypass mode

[bkf77]

P0401 is for insufficient EGR flow. Checking the dat for the EGR position sensor at idle should show 0% and should climb to 100% at a cruising speed. Should also read 0% under heavy acceleration. Use a vacuum pump to check the diaphram in the EGR valve. With the engine idling, apply vacuum to the valve. You should notice a change in the idle. The RPMs should drop and the engine should run rough and possibly stall out. If you do not notice a change in the idle, check to see if the valve is holding vacuum. If it does not, the diaphram is most likely ruptured. If it does hold, the passage to the intake is blocked. Make sure to check all vacuum lines, and if everything there looks OK, then you may have a problem with the DPFE or the EGR control solenoid. Because you have a problem with the EGR system, you are most likely having a fuel trim issue as well. That can cause converter failures over a period of time.