Question about 2003 Saturn VUE

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Hello! Since I do not know which engine is in the vehicle, I'll base my solution on the 4 cylinder...The O2 sensor is more than likely contaminated...This particular sensor can lie to the
computer...Generally it reacts to another fault...Cause and effect...The cause may very well be to rich of a fuel/air mixture...The effect is a contaminated O2...The engine will start but then stall when attempting to accelerate...I suspect a faulty Manifold Absolute Pressure (MAP) sensor...It is called the "fuel boss"...Request that the MAP be tested before the computer is changed...A wee bit of knowledge can save you a lot of money...There are three wires in the MAP connector...Orange/Black...Light Green...And Gray...With key on...The voltage across Light Green and Gray must read 5 volts...If it reads much less than 5 volts it is defective...It can be purchased for $93 at Auto zone or $75 (shipping included) at you want to test it yourself send a comment and I'll guide you.............Guru............Saailer

Posted on Jul 15, 2010

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I would trust the dealer over Autozone if they experienced these problems. However, if the car is running an the O2 sensor code was stored, go for that first.

An O2 sensor will not cause a driveability problem until the car is warmed up as the O2 sensor doesn't come into play until the exhaust is good and hot.

If the car cranks but dies on them when cold, then it's the crank sensor or computer in that order.

Good luck to you.

Posted on Jul 15, 2010

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There are several things that could be wrong. The problem with an Auto Zone scanner is that it's just a code reader. You'll need to troubleshoot the engine. Start by looking for a vacuum leak. Are the fuel and air filters clean? How about plugs and wires?

Apr 16, 2014 | 1999 Saturn SL

1 Answer

I have a Pontiac G3 2009. The check engine light is coming on, and there seems to be poor acceleration. I also took my car to auto zone and used their diagnostic computer and got the code P0171 as the code...

try replacing the o2 (oxygen) sensors on the exhaust pipes. there should be at least 2 of them.
if that does not work then your next option would be to have the catalytic converter inspected to see if it is plugged. (poor acceleration)

Sep 20, 2013 | Pontiac G3 Cars & Trucks

1 Answer

I have a honda accord and I went to Auto Zone and they did a diagnostic check results were P0420 and the following; aa1-A/F ratio concern aa2- air leak near HO2S Heated oxygen sensor aa3- ignition...

More than likely the catalytic converter has failed. the computer looks at the downstream O2 sensor to determine if the cat is working. If it sees the downstream O2 starting to switch back and forth like the upstream O2 or read consistently higher than it should than it will flag the P0420 code.

Aug 31, 2011 | 1999 Honda Accord

3 Answers

Reccieved P0141, P0147, P0340 as emission diagnostic trouble codes. What do these mean?

P0141....O2 Sensor Heater Circuit (Bank 1 Sensor 2)

P0142....O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)

P0143....O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)

P0144....O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)

P0145....O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)

P0146....O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)

P0147....O2 Sensor Heater Circuit (Bank 1 Sensor 3)

P0340....Camshaft Position Sensor 'A' Circuit (Bank 1 or Single Sensor)

Sep 20, 2010 | 1997 GMC Sierra

1 Answer

Erratic idle

I recently bought a Saturn for my daughter. The car had a hard starting problem (it crank and crank before firing). I got on this site and one possible solution was the temp sensor for the computer. The original unit has a plastic tip that cracks and lets coolant into the electronics. As a temp related problem I would suggest you check or change the temp sensor. At my local Auto Zone the part cost $8.99, so its not an expensive gamble.

Jul 19, 2010 | 1999 Saturn SL

2 Answers

96 Dodge Neon O2 sensor Ckt No Activity bank 1 sensor 1----how do I replace the sensor, will that correct a problem with the check engine light?

That would correct the problem, the O2 sensor is on the exhaust manifold or on the exhaust manifold down pipe. If you go to Auto Zone, they will have the O2 sensor you need and also the loaner tool you may need to remove the O2 sensor. Auto Zone also can give you the step by step instructions to replacing the O2 sensor in about 30 min. Once you located the O2 sensor, disconnect the wire harness and use the O2 sensor socket to remove the sensor from the exhaust. It's like removing a spark plug, to install the new O2 sensor is just to follow the same procedure in revers to the removal. Good luck.

Oct 28, 2009 | 1996 Dodge Neon

1 Answer

I went to the inspection station and they failed my car for this diagnostic problem p0134 which makes the check engine light come on

A code P0134 may mean that one or more of the following has happened:
  • Bad O2 (oxygen) sensor
  • Bad heater circuit in the O2 sensor
  • Wiring or connector to the sensor frayed / broken
  • Blown heater circuit fuse
  • Holes in the exhaust system
  • PCM failure
The most common fix is to replace the oxygen sensor (O2 sensor). But that doesn't rule out the possibility of:
  • Rusted exhaust pipe
  • Inspect wiring & connector(s) for problems
  • Excessive amperage blowing heater fuse (still requires replacement of sensor but also replacement of blown fuse)
  • Replace PCM (only as last resort after all other possibilities are covered.
If you go to Auto Zone, you can pick up the O2 sensor and they can give you the step by step instruction to replacing the upstream O2 sensor. "before the catalytic" If you don't have a O2 sensor socket, Auto Zone has that as a loner tool or you can buy one for around $8.99. But your better off using the loner tool and can replace the O2 sensor your self there in about 30 min, could be quicker but the engine may still be to hot to work on. Good luck

Oct 28, 2009 | 2003 Mitsubishi Galant

1 Answer

2003 Saturn L300 indicator lights stay on: ABS, SES...etc

first problem, went to autozone. the guy that looked at your car was making pizzas last week. they pull codes and sell you every part you will buy. take the car to the saturn dealer and replace the bcm.

Mar 02, 2009 | 2006 Saturn L300

2 Answers

Emissions Failure-Multiple Codes

take you car over to auto zone or one of the part stores that do the free computer test. They will do it for free and sell the part to you for way less money.

Jan 29, 2009 | 1998 Saturn SC

1 Answer

Engine light keeps coming on

Go to your local auto zone parts store, they have a free service where they will hook your car up to a dianostic computer and tell you what fault code is comming up. Then you can work on the correct problem. Also some cars have more than one O2 sensor, so it could still be a O2 sensor. Get the diagnostic check first. If you don't have a Auto Zone go to Advanced Auto, or start calling the part stores in your area and see if they offer this service, AMMCO offfers this service for free also.

Jul 11, 2008 | 1993 Chevrolet Caprice

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