EGR flow out of range (P1408)


la-z-boy
04-24-2005, 01:45 PM
EGR flow out of range (P1408)... What to do to fix this problem?

way2old
04-24-2005, 06:04 PM
Don't know what year you have, but look for the EGRV(Exhaust Gas Recirculation Vent) solenoid. See if there is vacuum coming through it at idle.

la-z-boy
04-25-2005, 01:59 PM
I have 1998 taurus.

la-z-boy
04-25-2005, 02:00 PM
I have 1998 taurus.

way2old
04-25-2005, 06:47 PM
OK Check the vent solenoid. I guessed at a 98 when I looked for the repairs.

GPFred
04-29-2005, 08:50 AM
I would also check the backpressure sensor, that seems to be the more common problem with the EGR valve setting off a code. I just replaced mine. I would also try cleaning the EGR first, off the car of course. Good luck.

la-z-boy
05-01-2005, 12:58 PM
Which one is backpressure sensor, I can't find it.

way2old
05-01-2005, 06:40 PM
Do you have the 2 valve or 4 valve engine? The 2v follows.Backpressure is the DPFE sensor. It is a little rectangular box about 3 inches long and 2 inches wide with same connections. Shouls sit on top of engine near the center rear on a bracket.If it is a 4 valve, it may be a small 1 1/2 inch square box that is buried under the intake. Same connections.

la-z-boy
05-01-2005, 07:59 PM
i replaced that backpressure sensor. but computer still shows P1408 code. ?????

sfontain
05-01-2005, 08:50 PM
i replaced that backpressure sensor. but computer still shows P1408 code. ?????
Did you have the codes cleared? If not then you will need to drive several cycles before it can turn off by itself.

la-z-boy
05-01-2005, 09:00 PM
if I disconnect battery for couple hours will it clear codes?

GPFred
05-02-2005, 09:18 AM
If you have an Advance Auto Parts in town, they will loan you a code reader to clear the codes. Or they may do it for you. Usually with no charge.

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