Question about 2004 Chevrolet Cavalier

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Chevrolet Cavalier 2004 Ecotec 2.2l 93000KM ODB2 CODE P0136. O2 sensor replaced and fuel pressure is 58psi. Code P0136 come back after 30 minutes on highway. What is the most probable cause if it's not the O2 sensor?

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Map sensor may be faulty and not throwing a code as well

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How do I pass vehicle inspection O2 Cat. Evap for a 2004 Chevrolet Cavelier


What was the code given..
02 will mostly sensors..
Cat code 420 will need new cat
And evap codes can b a couple different parts..need exact codes to tell what all is needed for fix

Sep 22, 2014 | 2004 Chevrolet Cavalier

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1997 nissan sentra 1.6l trouble code PO136


DTC P0136 - Oxygen O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2)
Essentially the same as P0137, a P0136 code refers to the second oxygen sensor on Bank 1. The O2 oxygen sensor produces a voltage between .1 mV and .9 mV. The ECM monitors O2 sensor voltage and determines if exhaust is lean or rich. O2 sensor voltage is high when exhaust is rich and low when exhaust is lean. The ECM monitors this voltage and increases or decreases fuel injector pulsewidth according to engine fuel/air ratio. If the ECM detects low HO2Sensor voltage for an extended period, it will set P0136 Conditions required to set: HO2 sensor voltage is low for longer than 2 minutes (minutes depend on model of vehicle. Could be up to 4 minutes)

There may be no visible symptoms to the driver. Poor fuel mileage, possible misfire, depending on O2 sensor position when sticking.

A code P0136 may mean that one or more of the following has happened:
Faulty O2 sensor leak in exhaust close to O2 sensor
Short to voltage on O2 signal circuit
Open in circuit resistance caused by corrosion in connector

If you need additional details, feel fr4ee to contact us clicking the previous faulf code links.

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Nov 07, 2011 | 1997 Nissan Sentra

2 Answers

Hello I hope you can help. My "service engine soon" light came on.I had trouble codes p0136 and p0304. We cleared the codes and the light has remained off, but the vehicle still runs poorly.My...


What does that mean? Essentially the same as P0137, a P0136 code refers to the second oxygen sensor on Bank 1. The O2 oxygen sensor produces a voltage between .1 mV and .9 mV. The ECM monitors O2 sensor voltage and determines if exhaust is lean or rich. O2 sensor voltage is high when exhaust is rich and low when exhaust is lean. The ECM monitors this voltage and increases or decreases fuel injector pulsewidth according to engine fuel/air ratio. If the ECM detects low HO2Sensor voltage for an extended period, it will set P0136 Conditions required to set: HO2 sensor voltage is low for longer than 2 minutes (minutes depend on model of vehicle. Could be up to 4 minutes)
Symptoms There may be no visible symptoms to the driver. Poor fuel mileage, possible misfire, depending on O2 sensor position when sticking.
Causes A code P0136 may mean that one or more of the following has happened:
  • Faulty O2 sensor leak in exhaust close to O2 sensor
  • Short to voltage on O2 signal circuit
  • Open in circuit resistance caused by corrosion in connector
Possible Solutions
  • Replace the second oxygen sensor on bank 1
  • Repair open or short in signal circuit
  • Clean corrosion from connector

A P0304 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #4.
Symptoms Symptoms may include:
  • the engine may be harder to start
  • the engine may stumble / stumble, and/or hesitate
  • other symptoms may also be present
Causes A code P0304 may mean that one or more of the following has happened:
  • Faulty spark plug or wire
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Running out of fuel
  • Poor compression
  • Defective computer
Possible Solutions If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.
If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.

Replace the O2 sensor first and see if that helps clear the vehicle up some. Some times these codes will trigger other codes and these are the issues that you will get.

Jun 24, 2011 | Ford E-Series Cars & Trucks

1 Answer

2004 chevy cavalier wouldnt start replaced fuel pump, filter, checked fuse and relay . Started up drove about 20 miles then went out to start it and wont start fuel pump not pressurizeing


Check your O2 sensors. They will give that affect and work only when your engine heats up. If the car cools down and starts up again, that is a sign that your O2 sensors are shot. Replace them.

Jan 17, 2011 | 2004 Chevrolet Cavalier

1 Answer

O2 sensor and evap solenoid


Hello you must disconect battery while replaceing this parts.This is a saftey messure also it alows the computer to reboot once conected and will reset the engine light and put it out for you.If you did not disconect the battery chances are you will still have service engine light on.Disconect your battery wait a couple of minutes reconect that should do it for you .Hope my support helped you.regee

Dec 16, 2009 | 2004 Chevrolet Cavalier

1 Answer

P0136 on 2004 Chevy Truck


That code is for a bad O2 Sensor circuit. If it is just the O2 Sensor that has gone bad, yes it is a very easy repair to do at home.

Oct 19, 2009 | 2004 Chevrolet Silverado 1500 Crew Cab

3 Answers

I get engine light, borrowed neighbors DTC reader get code P0136, could bad gas cap cause the eror?


P0136?

Yes this can be caused by the gas cap lack or week rubber.

Rate this and replace the gas cap.

Sep 01, 2009 | 2004 Chevrolet TrailBlazer

1 Answer

I have a Dodge Stratus 2005 2.7 6 cylinders and while driving it just shut off and the check engine light came on and it wont start again. all fuses are good it turns over just wont start. the code that...


P0174 IS FUEL SYSTEM 2/1 LEAN..YOU NEED TO HAVE FUEL PRESSURE CHECKED..SPEC IS 58PSI +/- 5PSI..ALSO CHECK FUEL FOR CONTAMINATION AND MAP SENSOR FOR ANY OIL IN IT..AN O2 SENSOR CAN ALSO CAUSE THIS CONDITION

Jun 15, 2009 | 2004 Dodge Stratus

1 Answer

DTC #420 on a 2004 chevy Cavalier


Need to monitor rear HO2 sensor operation. Possible bad rear O2 sensor or failed catalytic converter

Mar 29, 2009 | 2004 Chevrolet Cavalier

2 Answers

1997 Chev Cavalier hard starting


it sounds like the check valve in the fuel pump is letting the fuel bleed back into the tank

Sep 23, 2008 | 1997 Chevrolet Cavalier

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