O2 sensor

fcandm
0

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

Ashley O'Connor
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 out of 5 people think this is helpful.
Steve Murphy
110

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 out of 3 people think this is helpful.
Jae Jackson
25

gas treatment use 89 or higher gas

1 out of 1 people think this is helpful.
Vickie Fitzgerald
85

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 out of 3 people think this is helpful.
rabbsugar
110

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.

11 out of 11 people think this is helpful.
DebbieE11
25

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

2 out of 2 people think this is helpful.
zomasur13
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 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

PT Cruiser

Looking for a Used PT Cruiser in your area?

CarGurus has 4,626 nationwide PT Cruiser listings starting at $1,995.

ZIP:

Search Chrysler PT Cruiser Questions

Chrysler PT Cruiser Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,540
#2 Gypsy Rose
Gypsy Rose
Reputation 970
#3 docwade931
docwade931
Reputation 930
View All

Related Models For Sale

Used Chevrolet HHR"
119 Great Deals out of 3,810 listings starting at $599
Used Volkswagen Beetle"
188 Great Deals out of 9,396 listings starting at $600
Used Chrysler Sebring"
67 Great Deals out of 4,417 listings starting at $1,500
Used Ford Focus"
817 Great Deals out of 59,725 listings starting at $500
Used MINI Cooper"
299 Great Deals out of 10,784 listings starting at $2,450
Used Honda Civic"
828 Great Deals out of 52,658 listings starting at $995
Used Ford Mustang"
692 Great Deals out of 42,301 listings starting at $999
Used Chrysler 300"
523 Great Deals out of 22,296 listings starting at $1,998
Used Honda Accord"
1,087 Great Deals out of 72,203 listings starting at $500
Used Nissan Altima"
1,318 Great Deals out of 84,103 listings starting at $1,100
Used Toyota Corolla"
1,122 Great Deals out of 65,465 listings starting at $1,295
Used Chrysler Pacifica"
47 Great Deals out of 16,028 listings starting at $1,100
Used Ford Escape"
1,256 Great Deals out of 88,953 listings starting at $999
Used Toyota FJ Cruiser"
106 Great Deals out of 2,526 listings starting at $8,860

Used Cars For Sale

2010 Chrysler PT Cruiser For Sale
5 Great Deals out of 114 listings starting at $2,994
2009 Chrysler PT Cruiser For Sale
4 Great Deals out of 257 listings starting at $2,900
2008 Chrysler PT Cruiser For Sale
533 listings starting at $3,250
2007 Chrysler PT Cruiser For Sale
4 Great Deals out of 689 listings starting at $3,299
2006 Chrysler PT Cruiser For Sale
5 Great Deals out of 888 listings starting at $1,995