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

195

what do all the codes mean?

90,135

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.
25,485

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 1,496 nationwide Crown Victoria listings starting at $2,900.

ZIP:

Search Ford Crown Victoria Questions

Ford Crown Victoria Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 1,640
#2 Tom Demyan
Tom Demyan
Reputation 820
#3 FordNut
FordNut
Reputation 800
View All

Related Models For Sale

Used Mercury Grand Marquis
32 Great Deals out of 2,236 listings starting at $1,500
Used Lincoln Town Car
49 Great Deals out of 2,169 listings starting at $1,999
Used Ford Mustang
719 Great Deals out of 39,136 listings starting at $1,000
Used Chevrolet Impala
998 Great Deals out of 36,811 listings starting at $1,800
Used Ford Taurus
368 Great Deals out of 22,720 listings starting at $1,499
Used Ford F-150
3,492 Great Deals out of 207,570 listings starting at $1,273
Used Ford Explorer
1,506 Great Deals out of 74,212 listings starting at $985
Used Chevrolet Tahoe
1,086 Great Deals out of 32,099 listings starting at $1,495
Used Chevrolet Camaro
631 Great Deals out of 39,687 listings starting at $2,995
Used Honda Accord
1,264 Great Deals out of 78,832 listings starting at $969
Used Toyota Camry
1,525 Great Deals out of 101,602 listings starting at $700

Used Cars For Sale

2011 Ford Crown Victoria For Sale
122 listings starting at $5,950
2008 Ford Crown Victoria For Sale
164 listings starting at $3,999
2007 Ford Crown Victoria For Sale
131 listings starting at $3,995