Best Answer

I had the same problem and it is your oxygen sensor.

User Avatar

Wiki User

โˆ™ 2007-08-13 01:18:19
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: Why does the engine rev up and down when the throttle is held steady on a 1989 Dodge Colt?
Write your answer...
Still have questions?
magnify glass
Related questions

Dodge colt 1993 no start no fire?

1989 dodge colt no start;noid light steady bright

Is the 3.9 motor of 1989 Dodge Dakota injection or carburetor?

A 1989 Dakota has throttle body fuel injection.

Does your 1989 Dodge have a Carburetor or a throttle body?

Im getting air to my throttle body but no gas comeing out the injection just air

Where is the throttle positioning sensor on a 1989 Oldsmobile with a 2.8 Liter 6 cylinder engine?

The throttle positioning sensor is located in the throttle body.

Is a 1989 Dodge 318 engine block the same as a 360 engine block?


1989 Dodge Ram 50 carburetor hose diagram?

The 89 Dodge Ram didn't have a carburetor, it is throttle body fuel injected. The emission vacuum hose diagram should be posted on a sticker located in the engine compartment.

Who makes the 5.9 liter engine in a 1989 dodge cargo van?


What is the recommended engine oil for a 1989 dodge caravan?


How do you fix a sticky throttle on a 1989 Dodge Dakota 3.9L V6?

1st check throttle housing,then if it is the cable getting stuck you can oil it a little bit

What would cause the fuel injector in a throttle body injection to open fully and flood out the engine on a 1989 dodge pickup?

bad injecter, o-rings are bad, need to either rebuild or replace

Engine diagram 1989 Dodge Dakota V6 Engine?

The engine diagram for a 1989 Dodge Dakota be can be found in the Dakota service manual. The manual is available through most auto parts, or possibly at the public library.

What type of carb is on 1989 jeep yj 4.2 l engine?

That is a throttle body injection system.

People also asked