Question about 1995 GMC Jimmy

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How do I check the co2 plug to see if power is getting to the co2 senser

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Use multimeter to probe terminals of switch , if check engine light is on ,have put on scanner.

Posted on Oct 17, 2013

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How can I get my emitions down as its failing just on this only any suggestions


COULD BE MANY THINGS. START WITH NEW PLUGS. CHECK WITH A SCANNER THAT CAN READ LIVE DATA TO SEE WHAT THE O2 SENSORS ARE DOING. NOT SWITCHING LEAN TO RICH AND BACK OR SWITCHING SLOW CAN CAUSE HIGH CO2. A BAD MAP SENSOR OR MAF SENSOR ALSO . CHECK CODES FIRST

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check for blown gasket /exhaust leaks/coil/spark plug and wiring to distributor/ and check timing

Dec 16, 2013 | Cars & Trucks

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Cpu code says co2 senser is not getting power. ho do I check and repair


trace power wire back to source.may be short in wire or another bad switch ahead of it.

Oct 17, 2013 | 1995 GMC Jimmy

1 Answer

Rough idle, loss of power, stalls


check plugs wires and coil pack if good check timing of cam to crank may need to replace crank senser or cam senser

Jan 19, 2013 | 1996 Buick Park Avenue

1 Answer

#1 co2 senser


on the back side of the eng. on top of the exhaust pipe

Jun 06, 2012 | 1996 Buick Century

1 Answer

Engine missis at 2-2 half rpm under load.


Ok, if the car is misfiring it probably has a bad air/fuel mixture which can cause fouled spark plugs. The causes of a bad air/fuel mixture would could be a bad oxygen sensors or a bad engine coolant temp sensor. But that car is known for having bad head gaskets. What is probably happening is coolant and/or oil is leaking into the combustion chamber. you can check under the cars engine, where the head meets the block, for oil or coolant leaks where they attach. Or check the coolant for CO2 with a CO2 tester (found at auto parts store) and check for low oil. If it tests positive for CO2 in the coolant then its a blown head gasket. once you get the problem fixed you will probably need new spark plugs and possibly a catalytic converter (the longer it misfires, the more fuel will be burned on the cat filter and it will enventually melt)

May 03, 2011 | 1997 Subaru Impreza

2 Answers

Code poo31 showing and what would be the possible cause and what part to be replaced?


P0031 Oxagen senser heater circuit. The heater circuit can be checked with a test light connected to ground. ( a tast light is an ice pick looking tool with a clear handle with a 12 volt bulb inside and a ware with a clip to connect to grond, the light will light as the tip is touched to anything powered up with 12 volts and sometimes a little more and a wholde lot less) Find the oxagen sensers ( thier screwed into the exhaust pipes) Disconnect the electrial connectors and connect the test light to ground, with the key on test the wires in the plug connect ed the vehical. one of them should light the light, if it does reconect it and test the rest of the sensers, recalling which wire was live. ( most are white or grey but they vary some. If all the sensers have power it's not the power but the senser failed. with an ohm meter test the senser for the wire that was hot to the other wire that is the same color if the sneser is open ( no circuit ) you have found the bad senser. If you can't find power going to any of the sensers. Check the fuse boxes for blown fuses ( check them all with a test light) If you find a blown fuse replace it but go back to the wiring tjat connects to the sensers and you'll find someplace where the wire melted to the exhaust pipes and shorted out, blowing the fuse. The sensers short out too but not very often.

Feb 03, 2011 | 1999 Mazda MX-5 Miata

1 Answer

No take off power


I had the same thing it was a bad ground under the fuse box and a mix of bad wires and disturber.

Jul 03, 2008 | 1996 Dodge Dakota

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