2006 Cobalt LS 2.2 P0300 rough idle and no acceleration power.

Asked by Aug 09, 2014 at 12:51 PM about the 2006 Chevrolet Cobalt LS

Question type: Maintenance & Repair

So here's the rundown.  My car had
a P0171 running lean code.  I
replaced the Evap Purge Solenoid
and the MAF sensor.  After doing this
I started getting P0300 and P0426
codes.  I replaced the spark plugs,
took apart and cleaned the intake,
took apart and cleaned the throttle
body, and cleaned the fuel injectors(I
used the battery and syringe
method.)

Any thoughts?

10 Answers

109,945

Have you had the recalls done on your car?

2 of 2 people found this helpful.

I looked it up, I guess there was a fuel injection recall that was supposedly done before I got the car, and my car isn't part of the fuel pump recall, but it has the symptoms but when I brought it in they said I don't need it done?

109,945

http://www.motortrend.com/cars/2006/chevrolet/cobalt/recalls/ -- not sure how many of these apply to you.

2 of 2 people found this helpful.

Again, maybe the fuel pump, but they told me the recall doesn't apply to my car because I'm in Massachusetts.

109,945

P0300 and p0426 have one thing in common. Cat converter. Have you checked it?

1 of 1 people found this helpful.
109,945

Your description above rough idle and no acceleration power also sounds possibly like a faulty cat convertor.

I had thought that along the way. I will check it out later on or tomorrow and see what happens. Also not sure if this matters or if it's connected, but everytime I take apart the intake and expose the throttle, the performance improves for a short time afterwards?

109,945

Just a thought. Have you cleaned your maf sensor? Also check the wire connections to it.

1 of 1 people found this helpful.

I replaced it 5 months ago, and cleaned it a few weeks ago, just in case.

109,945

Oh ok.

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • 06 Cobalt Rough Idle/Stall when stopping or quick deceleration 52 answers

    Hello All, Here is the problem I have. 06 Cobalt LT 2.2l 103065 Miles When decelerating on the freeway to come to a virtual stop for traffic, when stopping at a stop light, when pulling out of the ...

    2006 Chevrolet Cobalt LT

    -

    Maintenance & Repair

  • Why is my 2006 Chevrolet Cobalt stalling so much when I drive it? 39 answers

    Here's the problem I am having: When I stop for a red light, when I stop at a stop sign, when I pull out into the highway or road, when I pull into a parking space it stalls.The RPM goes way,way down ...

    2006 Chevrolet Cobalt LS

    -

    Maintenance & Repair

  • 2006 Chevy cobalt ls electrical problems 11 answers

    I have a 2006 Chevy cobalt ls and its acting really funny. It won't hold a charge on the battery but when you have jumper cables hooked up it idles and runs fine but when they come off it will go ...

    2006 Chevrolet Cobalt LS

    -

    Maintenance & Repair

  • Is my '06 Chevy Cobalts Engine blown? 2 answers

    First off, I WANT TO SINCERELY APOLOGIZE FOR THE WAY THAT IM FIXING TO TRY AND EXPLAIN WHAT MY COBALTS PROBLEMS ARE, PAST AND PRESENT. Im gonna try the BEST I can bc I DESPERATELY NEED HELP! Thank...

    2006 Chevrolet Cobalt LS

    -

    Maintenance & Repair

Cobalt

Looking for a Used Cobalt in your area?

CarGurus has 3,848 nationwide Cobalt listings starting at $1,799.

ZIP:

Search Chevrolet Cobalt Questions

Chevrolet Cobalt Experts

#1 lightGear
lightGear
Reputation 1,130
#2 dandyoun
dandyoun
Reputation 930
#3 munron
munron
Reputation 910
View All

Related Models For Sale

Used Honda Civic
654 Great Deals out of 88,603 listings starting at $995
Used Chevrolet Malibu
946 Great Deals out of 79,655 listings starting at $1,500
Used Ford Focus
538 Great Deals out of 57,171 listings starting at $1,095
Used Ford Mustang
474 Great Deals out of 45,735 listings starting at $1,999
Used Chevrolet Impala
520 Great Deals out of 31,726 listings starting at $1,450
Used Honda Accord
812 Great Deals out of 84,287 listings starting at $1,050
Used Honda Civic Coupe
188 Great Deals out of 16,850 listings starting at $800
Used Dodge Charger
404 Great Deals out of 28,172 listings starting at $1,988
Used Nissan Altima
1,027 Great Deals out of 81,564 listings starting at $1,200
Used Toyota Corolla
786 Great Deals out of 73,830 listings starting at $1,995
Used Chevrolet Cavalier
1,000 listings
Used Ford Fusion
1,120 Great Deals out of 83,259 listings starting at $998

Used Cars For Sale

2010 Chevrolet Cobalt LS For Sale
10 listings starting at $2,499
2009 Chevrolet Cobalt LS For Sale
101 listings starting at $2,459

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.