My check engine light is on code po452 had a ftp sensor put in gas tank and had fuel rail sensor replaced and check engine light is still on. please help me find the problem tired of spending money
Well ---PO 452 is still FTP Sensor Circuit Low Voltage Detected
new sensor or not
If the sensor reads less than .22volts with key on /engine off --you get a hard fault (code)
Check Sensor Connector
Sensor with no pressure or vacuum in tank is 2.4 to 2.8 volts
Key On/Eng Off On scan tool PIDS
You just need a shop with a data base & proper test procedure
or a different tech or different dealer.
I have the 2004 gas engine emissions diagnostic manual for all
2004 fords, as I have a Lincoln LS,so I don't know why a pro
couldn't resolve
SOURCE: 1998 Mercury Grand Marquis Fuel Pump Replacement
you can try just resetting the fuel pump switch located in the car
the switch is originally in the car for in case of an accident, however, if changed, chances are you also have to reset it
in my 98 grand marquis, the switch is on the left side of the trunk
SOURCE: engine light on 2003 Grand Marquis code p 2197 "lean"
the very 1st thing u do is have the trouble code checked that turned on the light, there are well over 200 possible reasons for a check engine light, a fuel filter is not one of them.
SOURCE: 1994 Mercury Grand Marquis Check Engine Light Code 332
its the tube going from the egr valve to your exhaust it have carbon build up and you either have to replace it or get a metal coat hanger and clean it out.
SOURCE: 1998 Mercury Grand Marquis. Check Engine light on
is not ford,driverside front close to rad #1,and then2,3,4 [same side]and pass. side front 5,6,7,8 [if only 6cyl you have 123and 456?
Testimonial: "thanks"
SOURCE: Check Engine Light Code 332
332 = EGR valve opening not detected.
You should be able to find a list of DTC's on the Internets somewhere.
1,002 views
Usually answered in minutes!
×