Question about Chevrolet Cars & Trucks

Open Question

Why is my 2007 chevy cobalt is throwing codes p0336 p2135 p0496

Cause engine power reduce car is in limp mode

Posted by Anonymous on


6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 353 Answers

SOURCE: why does reduce engine power light comes on chevy

That is a hard problem to pin point without knowing what codes the computer has stored. It can be any number or sensors or engine problems.

You can go to most auto parts stores and they will pull the codes for you for free.

Posted on Jul 27, 2009

  • 63 Answers

SOURCE: 2005 chevy cobalt, car wont start ... check

disconecting the battery should reset the pcm. but you will need to find out what caused the problems.

Posted on Jan 06, 2010

  • 3640 Answers

SOURCE: dtc code p0121 and p2135 2007 chevy malibu

both codes refer to the throttle position sensor, the sensor is at the throttle plate, on the side of the throttle body. to test remove the connector to sensor, use a ohms meter to test. put 1 lead to top connection and the other to the bottom one. move throttle and the needles on the ohms meter should move very even, move throttle slow to get a good reading, needle should move without no hesitation, if the test is bad replace tps sensor. if the sensor gets to bad, it can have an effect on transmission shifting. after fixing sensor have the light turned of with an obd2 scanner.

Posted on Feb 20, 2010

  • 1024 Answers

SOURCE: car is in

check and see if the traction control light, abs light are on the dash. those things can put your car in a reduction mode, because the computer thinks you are on a skid

Posted on Mar 24, 2010

Testimonial: "thanks dude "

  • 749 Answers

SOURCE: 2005 Chevrolet Cobalt in "limp home mode" code 606

P0606 indicates Control module internal performance. GM is indicating of the replacement ECM. Once replacement is completed reprogramming the ecm is necessary. Locally a few auot parts stores can reflash the ECM.May want to check with a NAPA or Carquest for this otherwise dealer is probably the only option.

  • Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
  • Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  • jsmes1027_30.gif
  • Disconnect the small engine control module (ECM) harness connector (3) from the ECM.
  • Remove the bolt retaining the large ECM connector to the ECM.
  • Disconnect the large ECM harness connector (4) from the ECM.
  • jsmes1027_31.gif
    Notice: Control module damage may result when the metal case contacts battery voltage. DO NOT contact the control module metal case with battery voltage when servicing a control module, using battery booster cables or when charging the vehicles battery.
  • Use the retaining tab to release the ECM from the underhood junction block bracket.

  • Reverse process for installation

    Posted on Dec 11, 2010

    Add Your Answer

    Uploading: 0%


    Complete. Click "Add" to insert your video. Add



    Related Questions:

    1 Answer

    I have a 2002 Chevy suburban and the reduced engine light came on what does that mean

    Its telling you your vehicle has been placed in limp mode to prevent damage. You need to have your computer checked for codes that should lead to the issue causing the limp mode or reduced power mode

    Nov 11, 2014 | Cars & Trucks

    1 Answer

    2004 chevy express van codes p0894

    P0894 Transmission Slipping
    P1258 Engine got Hot
    P1516 Throttle Actuator Control (TAC)

    Chevrolet Tahoe vehicles may experience a performance issue where they will not go over 15MPH. The vehicle may appear to be in "limp-in" mode, giving just enough power to get you to a shop. over-hood-250x300.gifThe codes indicate a problem with the throttle position sensor circuits and throttle actuator performance. Do NOT start replacing parts. Shops report a pattern failure in the electrical harness to these sensors. Chevrolet has issued a revised replacement harness to correct the problem. The original connector was prone to vibration and broken wires that disrupted the signal to the PCM and put the vehicle into reduced power mode.

    Apr 12, 2013 | 2004 Chevrolet Express

    1 Answer

    2008 GMC sierra code # p2135

    Most of the time with the 5.3L in the GM vehicles it is a problem with the Throttle body for P1235 code. Usually you can pull the air intake off the throttle body, take a rag with some break cleaner and open the plate. Clean the inside of plate and throttle body. I will probably be Black Gunk build up that comes off. Just clean it really well. The sensor between the pedal and the throttle body have match signals. If one is off then it goes into reduced power mode. So this can be caused by this residue build up. It usually will fix your issue. It can come back but it will get you back on the road and help take you out of limp mode or reduced power mode.

    Mar 23, 2013 | 2008 GMC Sierra 1500

    1 Answer

    95 chevy truck stuck in power reduced mode

    you need to fix the problem that is making it go into limp mode. if it is in limp mode then you should have a check engine light. scan the error codes at a parts store for free. then look up the codes and that will tell you the problem

    Mar 13, 2013 | Cars & Trucks

    1 Answer

    Can you bypass the engine power reduced on a 2007 chevy cobalt

    You need a knowledgeable technician and the proper
    use of enhanced trouble codes & reference material
    for your vehicle


    Where the parts replaced actually tested & how?
    Did all of them fail a test-No
    So the people just were guessing correct!!

    Mar 02, 2013 | Chevrolet Cars & Trucks

    1 Answer

    What does the code P2135 mean on a Chevy Cobalt 2007

    P2135 - Throttle Position (TP) Sensor 1-2 Correlation

    May 23, 2012 | Chevrolet Cars & Trucks

    1 Answer

    2003 GMC Sierra 5.3L (has 2004 engine) Drive by wire. Reduced engine power (Limp Mode). Following error codes - P1516, P2135, P0120. Checked all connections at throttle body(Wiggle tested the individual...


    Oct 24, 2010 | 2004 GMC Sierra 1500 Crew Cab

    2 Answers

    Reduce engine power 2007 chevy uplander

    Sopunds like the computer has gone into a limp mode. You need to take it in for a professional diagnosis.

    Jan 15, 2010 | 2007 Chevrolet Uplander

    4 Answers

    Why does reduce engine power light comes on chevy

    That is a hard problem to pin point without knowing what codes the computer has stored. It can be any number or sensors or engine problems.

    You can go to most auto parts stores and they will pull the codes for you for free.

    Jul 27, 2009 | 2005 Chevrolet Cobalt

    3 Answers

    What is PO496 code? I've got a PO171B also, which I'm assuming is dirty an O2 sensor.

    2007 cobalt and am getting P0496 code as well. would love to know what is cause!

    Apr 30, 2009 | Chevrolet Cobalt Cars & Trucks

    Not finding what you are looking for?
    Cars & Trucks Logo

    Related Topics:

    35 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Chevrolet Experts


    Level 3 Expert

    76846 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22246 Answers

    Ronny Bennett Sr.
    Ronny Bennett Sr.

    Level 3 Expert

    6927 Answers

    Are you a Chevrolet Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides