With these codes listed, what should I change first?

Asked by Dec 29, 2012 at 05:42 PM about the 1999 Ford Crown Victoria 4 Dr STD Sedan

Question type: Maintenance & Repair

I now have some codes from the car in question; 1. P0136- We replaced the bank 1 sensor 2, it helped slightly. Also the car has 155000+ miles 2. P1131 3. P1151 4. P0300

5 Answers

215

what do all the codes mean?

96,195

P0136 is the O2 sensor that you replaced. P1131 is Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1 ---- P1151 is Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 2---- P0300 is Random/Multiple Cylinder Misfire Detected < - not surprising with the O2 codes.... I don't know what you should change first but I'm seeing a lean condition on your O2 sensors. I would check the fuel pressure to the fuel rails. A low pressure would make it run lean. The O2 sensors are doing their job and I don't think that they all failed at the same time. Look for causes of the lean condition ie worn fuel pump, clogged filter, bad fuel pressure regulator, etc. Good luck.

1 out of 1 people think this is helpful.
27,015

A vacuum leak is the most common cause for a lean concern check all the vacuum lines on the motor. All the concerns tenspeed listed are also valid.

We cleaned the mass air flow sensor, and the cold start problem was resolved, thanks for all the suggestions

cleaning the MAF only helped for a day, since then we replaced it

Your Answer

Add photo

Related Questions

  • Transmission 1 answer

    My car wont shift out of first gear and when it gets to 40 mph its like it goes in nutruel i went and got the code checked said it was CMP i changed it and nothing changed still wont shift

    2007 Ford Crown Victoria Police Interceptor

    -

    Maintenance & Repair

  • My 2001 crown victoria police interceptor won't rev up 1 answer

    I took my car to get a oil change, then later i noticed my oil pressure gauge was dropping with a small tapping noise but it only jumped around after 15 mins of driving but once at a stop or slow...

    2001 Ford Crown Victoria Police Interceptor

    -

    Maintenance & Repair

  • ORIGINAL SHOCKS 2 answers

    What are the Part Numbers and Manufacturer of the OEM Front and Rear shocks for a 2005 Crown Vic LX Sport with Air Suspension? I am considering replacing the OEM shocks with Monroe Shocks which are s...

    2005 Ford Crown Victoria LX Sport

    -

    Maintenance & Repair

  • I have a 06 ford crown vic with police interceptor. I need a transmission. What years would work? I was told only 06 would work. 5 answers

    Been given mixed answers. Just need solid input from someone with that transmission knowledge please!

    2006 Ford Crown Victoria Police Interceptor

    -

    Maintenance & Repair

  • door lock code 1 answer

    hi guys, am from Saudi Arabia, i have a crown vic of 1998 and it running well. actually this car is imported from usa by first owner, i have bought it two years back. now i am facing the problem wi...

    1998 Ford Crown Victoria 4 Dr LX Sedan

    -

    General

Crown Victoria

Looking for a Used Crown Victoria in your area?

CarGurus has 1,056 nationwide Crown Victoria listings starting at $2,225.

ZIP:

Search Ford Crown Victoria Questions

Ford Crown Victoria Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 1,770
#2 Tom Demyan
Tom Demyan
Reputation 930
#3 tennisshoes
tennisshoes
Reputation 680
View All

Related Models For Sale

Used Mercury Grand Marquis
21 Great Deals out of 1,837 listings starting at $1,600
Used Lincoln Town Car
27 Great Deals out of 1,835 listings starting at $600
Used Ford Mustang
371 Great Deals out of 46,946 listings starting at $1,999
Used Chevrolet Impala
524 Great Deals out of 29,491 listings starting at $799
Used Ford Taurus
231 Great Deals out of 20,268 listings starting at $1,200
Used Ford F-150
2,234 Great Deals out of 208,521 listings starting at $1,499
Used Ford Explorer
809 Great Deals out of 74,629 listings starting at $750
Used Chevrolet Tahoe
567 Great Deals out of 27,373 listings starting at $1,500
Used Honda Accord
758 Great Deals out of 87,630 listings starting at $1,250
Used Chevrolet Camaro
146 Great Deals out of 32,809 listings starting at $1,995

Used Cars For Sale

2011 Ford Crown Victoria For Sale
4 Great Deals out of 147 listings starting at $5,450
2008 Ford Crown Victoria For Sale
4 Great Deals out of 130 listings starting at $2,999
2007 Ford Crown Victoria For Sale
80 listings starting at $2,900