What does auto scanner code p0204/ p0208/ mean

Asked by Sep 16, 2015 at 01:30 AM about the 2001 Mercury Grand Marquis LS

Question type: Maintenance & Repair

2 Answers

200

P0204 means that the PCM detected a fault in the injector or the wiring to the injector. It monitors the injector and when the injector is activated, the PCM expects to see the voltage pulled "low" or close to zero. The symptoms for this code will likely be a misfire and a rough running engine. Poor acceleration. The MIL will also be illuminated. This could come from a misfire on a cylinder. P0208 also could be from the first code. This is something that can only be diagnose by a service tech. It DOES NOT mean to replace it. The problem could be with something else in the circuit. It's not easy with these newer cars, but just to replace things will add up with BIG MONEY and not be that part.

4,025

p0204- injector 4----- wiring, injector,ecm..........p0208 injector 8. change the injectors to new locations, clear codes, start and see if your faults follows the injectors.

2 of 2 people found this helpful.

Your Answer

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,840
  • #2
    kbro
    Reputation
    2,160
  • #3
    Js08016
    Reputation
    1,930
View All

Related Models For Sale

Used Lincoln Town Car
32 Great Deals out of 1,734 listings starting at $500
Used Ford Crown Victoria
3 Great Deals out of 967 listings starting at $1,496
Used Chevrolet Impala
588 Great Deals out of 34,466 listings starting at $900
Used Chevrolet Tahoe
832 Great Deals out of 41,908 listings starting at $1,987
Used Ford Mustang
599 Great Deals out of 39,174 listings starting at $1,895
Used Ford F-150
3,204 Great Deals out of 220,499 listings starting at $1,200
Used Honda Accord
1,107 Great Deals out of 73,060 listings starting at $1,100
Used Ford Taurus
246 Great Deals out of 14,991 listings starting at $1,800
Used Toyota Camry
1,115 Great Deals out of 86,568 listings starting at $800
Used Lincoln Continental
18 Great Deals out of 3,408 listings starting at $32,794

Used Cars For Sale

2010 Mercury Grand Marquis LS For Sale
7 Great Deals out of 98 listings starting at $4,688
2009 Mercury Grand Marquis LS For Sale
78 listings starting at $2,999
2008 Mercury Grand Marquis LS For Sale
6 Great Deals out of 106 listings starting at $800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.