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Several. Dirty air filter. defective CO2 sensor, needing new spark plugs, wires, and possibly cap & rotor. Worn out catalytic converter(s), or other engine control devices that aren't working properly. Due to the age of the car, check all the vacuum hoses. Replace as necessary. Some might be cracked and causing a slight vacuum leak or not connected at all.

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โˆ™ 2004-11-29 01:19:08
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Q: What could be a common cause of a 1988 Dodge Diplomat failing to pass DEQ due to excessive carbon monoxide?
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Related Questions

When you exhale do you breathe out carbon monoxide or carbon dioxide?

of course we breathe out carbon dioxide not carbon monoxide

How much carbon monoxide does soda have?

Soda does not have any amounts of carbon monoxide. It has carbon dioxide dissolved in it, but no carbon monoxide.

Does a carbon monoxide monitor detect carbon dioxide?

No. Carbon monoxide and carbon monoxide are different substances with different properties.

How does carbon monoxide cause cancer?

No. You can't get Cancer from Carbon Monoxide. You die from Carbon Monoxide instantly.

Does charcoal contain carbon monoxide?

It does not contain carbon monoxide, but it will likely produce carbon monoxide when burned.

Is carbon monoxide c02?

no that is carbon dioxide,carbon monoxide is CO

What is the pH of carbon monoxide?

Carbon monoxide has no pH.

What elements are in carbon-monoxide?

oxygen and carbon

What colour is carbon monoxide?

Carbon monoxide is colourless

What do you use carbon monoxide for?

carbon monoxide is a gas

What do you breathe in when you breathe in carbon monoxide?

carbon monoxide

What are uses for canned carbon monoxide?

Canned carbon monoxide can be used to test carbon monoxide alarms and sensors.

Word equation for carbon monoxide?

Carbon+oxegen(arrow) carbon monoxide

How does carbon monoxide form?

when carbon combines with oxygen1 it forms carbon monoxide

Is carbon monoxide CO2?

No, carbon monoxide is CO. CO2 is carbon dioxide.

Is carbon monoxide a metal?

No. Carbon monoxide is a compound of the nonmetals carbon and oxygen.

Is carbon monoxide and element or compound?

Carbon monoxide is a compound made of the elements carbon and monoxide.Another answer: Carbon monoxide is a compound which contains atoms of the elements Carbon and Oxygen. It has the chemical formula CO.

3 things about carbon monoxide?

Carbon monoxide is a lethal poison that is produced by fuels. Carbon monoxide is lighter than air Carbon monoxide has 1 Carbon atomand 1 oxygen molecule

Carbon monoxide smell from radiator?

Carbon monoxide has no smell.

Carbon monoxide formula?

CO is the formula for carbon monoxide :)

Can you smell carbon monoxide when it burns?

No. Carbon monoxide is odorless.

Why carbon monoxide is combustible?

Carbon monoxide has the abilty to be oxidized.

What is another way of saying carbon monoxide?

The abbreviation for carbon monoxide (CO) is another way to say carbon monoxide.

Is carbon monoxide less harmfull then carbon dioxide?

No. Small concentrations of carbon monoxide are potentially lethal. Carbon monoxide requires higher concentrations.

What is an example sentence using the word carbon monoxide?

The family would of died from carbon monoxide poisioning if the alarm did not go off.