Question about 2003 Pontiac Grand Prix

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How do I reset the service enging soon light. It

How do I reset the service enging soon light. It coded for oxygen analyser, I replaced it with new but light is still on

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You can unhook your battery for about 20-30 minutes to let the computer dump its memory, and it'll dump the codes as well. If it comes back, then you still have a problem....different o2 sensor, or vacuum leak.

Posted on Nov 14, 2009

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Posted on Jan 02, 2017

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My Dodge Stratus (1998 4 cyl) check Engine light is on. The error code says oxygen sensors were bad. Both oxygen sensors have been replaced. After resetting the check Eng light. The oxygen sensor


the upper 02 sensor is for air fuel mix while the secondary 02 sensor is for the operation and status of the catalitic converter are you sure the catalitic converter is not plugged. Could be if you have had a loss of power

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Engine Service Soon Light On code P0154


Error Code: P0154
Description:
Heated Oxygen Sensor (HO2S) 1 , Bank 2 - No Activity Detected
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P0138 and p0158


These codes, po 138 bank 1 sensor 2 shorted to voltage and code po158 means bank 2 sensor two shorted to voltage. these are the two rear oxygen sensors in the exhaust system. there two up frt and two in the rear, check the wiring on the two rear sensors, make sure that the wiring is not cut or stuck between metal. if the wiring is good then replace both rear sensors, when you get them ask for the left and right after the cat sensors. or bk1 s2 and bk2s2. after replacing them reset the computer. go to an auto parts sotre or if you have a code reader you can do it. hope this helps good day.

Feb 19, 2012 | 2004 Dodge Stratus

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Tighten gas cap and then service engine soon lit. Replaced with factory new cap and reset service engine soon light by disc negative battery lead. about 2 drives later the tighten gas cap lit again then...


Doesn't completely sound like a fuel pump problem...sounds like a vacuum line problem .... check your pcv ...and vacuum lines and when was your fuel filter last changed and how many miles are on the car...your fuel pressure regulator solenoid needs to be dry on the vacuum side too...diaphram could be leaking but if you can't find an obvious problem I would definiately find a qualified mechanic to dive into it...do you have access to a scan tool to read the trouble codes?

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My Check Eng light is on with a bank 1 Catalytic converter code on my Mazda 6 3.0 eng I understand there are 4 cats on my car I was wondering what one needs replaced Mike


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Where is oxygen sensor located because service eng. soon light stays on


There are two O2 sensors. One in the Y pipe where it connects to the exhaust pipe and the second one is in the exhaust pipe between the catalytic converter and the muffler. There a hundred things that will cause the service engine soon light to come on. A problem with the O2 sensor is just one of them.

Nov 19, 2010 | 2001 Buick LeSabre

1 Answer

Replaced oxygen sensor, squirrel went for a spin. Service enging soon may need to be reset. Can i do this or does it require a dealer?


remove the negative cable @ battery for 30 seconds to see if it clears the check engine light ,if it doesnt it will need to be cleared with a scanner-warning your factory radio will loose the function code when you remove the battery cable,make sure you have the code otherwise your radio will not work

Apr 04, 2010 | 2007 Mitsubishi Outlander XLS

1 Answer

2001 grand prix eng. light is on code came back front oxygen sensor it was replaced light was still on code was erased took it in came back inconclusive they ask me to run it light came back on have run it...


have the code erased and reset the computer by disconecting the battery. if the code returns then replace the sensor again w a dealer replacement part if not done so already. many times aftermarket sensors or cheaper sensors that are supposed to be for all vehicles dont remedy the problem.

Mar 31, 2010 | 2001 Pontiac Grand Prix

1 Answer

SERVICE ENGINE SOON LIGHT ON


you need to change the oxygen sensor. it will soon cause you problems. after you need to take it in to  erase the code.

Apr 20, 2009 | 1997 Chrysler Town & Country

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