O2 sensor

Asked by Aug 31, 2009 at 02:07 PM about the 2006 Chrysler PT Cruiser

Question type: Maintenance & Repair

My 2006 Cruiser keeps having the O2 sensor turn on the engine light.  Besides a loose gas cap what else could be causing this.  It also is not getting very good gas mileage, only about 21mpg?

7 Answers

155

When do you refuel? Do you let it go pretty much to E before you get gas? If so that is not good for your car... You might be getting the gunky gas that is at the bottom of your tank running through your car. Now if you refuel before it drops below a quarter tank then I am not sure. But it sounds like it is probably got some gunk in it. Perhaps try that stuff that you put in your tank to help it. I'm blanking on the name of it. I have an 04 Cruiser and I have never had this problem. 21mpg seems to be the average according to fueleconomy.gov.

5 of 5 people found this helpful.
150

hey, when my o2 light came on, we were in the process of checking the EGR valve, but it was good. to change the spark plugs, we were unaware that we had to remove the whole intake manifold, to get at the plugs. when we did this, we smelled gas in the intake, which was being caused by the downstream o2 sensor, malfunctioning....it was completely gone, and burnt out. my mechanic friend, informed me that we needed to replace that sensor, because the PCM was now only getting data from one sensor, and dumping too much fuel into the mix, and the reason why your gas mileage is poor, is because gas is actually being wasted, and not being burned fast enough in the engine, and blowing out of your exhaust.....and you can smell the difference, when you replace the bad sensor, so your PT will have 2 again like it is supposed to. get your o2 sensor replaced, or the next time you see your intake off, you will smell gas...which is bad.

3 of 3 people found this helpful.
25

gas treatment use 89 or higher gas

1 of 1 people found this helpful.
95

I was having the same problem and started using a higher octane fuel, changed the air filter, and kept the tires inflated. Oh and driving smoothly, no qick stops and starts and less speeding helped too :-)

3 of 3 people found this helpful.
140

We have had the O2 sensor changed in our car twice. They change the sensor so the car can pass the smog check but the sensor comes back normally 24 hours later. Once it comes back on - it just stays on. The mechanic cannot figure out why the O2 sensor keeps going bad.

14 of 14 people found this helpful.
25

JUST REPLACE THE SENSOR IT'S ABOUT 35.00 AND IF YOU KNOW ANYONE HANDY EASY TO REPLACE

2 of 2 people found this helpful.
10

Do this, it works for my pt cruiser 04, drive your car at at 55mph whit the cruise control for 15 miles and then your car will be ready

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • O2 sensor 7 answers

    My 2006 Cruiser keeps having the O2 sensor turn on the engine light. Besides a loose gas cap what else could be causing this. It also is not getting very good gas mileage, only about 21mpg?

    2006 Chrysler PT Cruiser

    -

    Maintenance & Repair

  • O2 sensor 2 answers

    2005 Chrysler PT Cruiser Limited Turbo

    -

    Maintenance & Repair

  • O2 sensor 1 answer

    Computer says p0137 when i do the ignition test with turning key 3 times. Dnt know if thats front or back O2 sensor. Sensor is cheap and sounds very easy to replace from online research. I can bar...

    2004 Chrysler PT Cruiser Base

    -

    General

  • O2 sensers 1 answer

    I replaced o2 sensers it still reads out same problem

    2004 Chrysler PT Cruiser

    -

    Maintenance & Repair

  • p0128 sensor 1 answer

    I have a 2008 PT Cruiser, and I've had my exhisband replace the sensor and thermostat twice, then the radiator cap the second time, yet the code returned within 36 hours of the new parts being insta...

    2008 Chrysler PT Cruiser Touring

    -

    Maintenance & Repair

PT Cruiser

Looking for a Used PT Cruiser in your area?

CarGurus has 3,250 nationwide PT Cruiser listings starting at $1,850.

ZIP:

Search Chrysler PT Cruiser Questions

Chrysler PT Cruiser Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,230
#2 Gypsy Rose
Gypsy Rose
Reputation 1,390
#3 docwade931
docwade931
Reputation 1,250
View All

Related Models For Sale

Used Chevrolet HHR
56 Great Deals out of 2,616 listings starting at $1,499
Used Volkswagen Beetle
174 Great Deals out of 9,440 listings starting at $1,200
Used Chrysler Sebring
29 Great Deals out of 2,869 listings starting at $1,300
Used Ford Mustang
623 Great Deals out of 46,695 listings starting at $750
Used Nissan Altima
1,233 Great Deals out of 79,841 listings starting at $1,500
Used Chrysler 300
422 Great Deals out of 19,205 listings starting at $1,000
Used Honda Accord
1,014 Great Deals out of 77,124 listings starting at $999
Used Honda Civic
861 Great Deals out of 88,894 listings starting at $1,299
Used Ford Focus
682 Great Deals out of 57,393 listings starting at $795
Used MINI Cooper
233 Great Deals out of 9,934 listings starting at $1,795
Used Dodge Caliber
50 Great Deals out of 2,301 listings starting at $1,600
Used Toyota Camry
1,129 Great Deals out of 91,079 listings starting at $1,222
Used Toyota Corolla
936 Great Deals out of 70,287 listings starting at $1,500

Used Cars For Sale

2010 Chrysler PT Cruiser For Sale
3 Great Deals out of 82 listings starting at $2,950
2009 Chrysler PT Cruiser For Sale
3 Great Deals out of 163 listings starting at $1,850
2008 Chrysler PT Cruiser For Sale
5 Great Deals out of 378 listings starting at $1,995
2007 Chrysler PT Cruiser For Sale
6 Great Deals out of 500 listings starting at $2,000
2006 Chrysler PT Cruiser For Sale
618 listings starting at $2,995

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.