I have a 1998 Nissan Sentra and I recently cleaned out the carburetor using a spray cleaner. Inside the throttle body it was filthy. After I finished cleaning in and ran the car for a couple of miles and then stopped. When I restarted the car it seems as if the it's idling way too fast, what could I have done to change it?

Asked by Feb 21, 2014 at 02:02 PM about the 1998 Nissan Sentra SE

Question type: Maintenance & Repair

As I said I had cleaned the carburetor on my 1998 Nissan Sentra. When I finished cleaning it, I took it for a ride and came home. The next time I started the car it was idling way too fast. What could I have done to change the idling speed?

12 Answers


Sentra 1998 doesn't have a carburetor, it has in injection engine. Did you unplug the air flow and sprayed cleaner inside the throttle body? You have to use throttle body cleaner when you do that. Otherwise you might damage a sensor.

4 people found this helpful.

Thanks for your help, but I have a question if you don't mind and that's wouldn't an injection engine have fuel injector's?

1 people found this helpful.

He's right. a 98 sentra is fuel injected. May have to bring to dealer to do an idle air re-learn.

A 1998 Nissan Sentra is not fuel injected as I just changed the plugs two days ago.


Fuel injected engines do have spark plugs too.

1 people found this helpful.

To all those who I have questioned, I apologize for my ignorance.


Is your car running better now??

No it's not. I can't really afford to take it to a dealer right now as you suggested so I'm at a loss as to what I can do here at home. I'm not sure if you've read my apology, but if you haven't as I said I apologize for my ignorance. Thanks.

1 people found this helpful.

Like Robert said, it may need to re-learn. Unplug your battery for 10 minutes, then replug it. It should reset the ecu to its initial values. There are other ways to do it like with a scan tool or with an obscure pattern of key, pedal and ignition that you can obtain from the dealer or on the internet.

Best Answer Mark helpful

I'll try what you've suggested. Thank you for your help


Did it solve the issue?

L_R, I'm sorry I haven't answered your suggestion yet. I have had an unexpected trip to the hospital and haven't been able to try your suggestion yet, but I do plan to this weekend. I will let you know if it does solve my problem. Thanks again

Your Answer:


Looking for a Used Sentra in your area?

CarGurus has 2,331 nationwide Sentra listings starting at $2,250.

Postal Code:

Nissan Sentra Experts

  • #1
    Doran Harney
  • #2
  • #3
View All

Find great deals from top-rated dealers


Related Models For Sale

Used Nissan Altima
61 Great Deals out of 1,539 listings starting at $2,850
Used Toyota Corolla
218 Great Deals out of 6,263 listings starting at $2,287
Used Honda Civic
223 Great Deals out of 5,660 listings starting at $1,990
Used Toyota Camry
90 Great Deals out of 1,650 listings starting at $3,799
Used Honda Accord
56 Great Deals out of 1,927 listings starting at $1,995
Used Hyundai Elantra
179 Great Deals out of 5,115 listings starting at $1,200
Used Nissan Maxima
31 Great Deals out of 425 listings starting at $2,995
Used Ford Focus
113 Great Deals out of 2,055 listings starting at $2,699
Used Hyundai Sonata
58 Great Deals out of 1,570 listings starting at $2,900
Used Chevrolet Malibu
57 Great Deals out of 2,054 listings starting at $1,700

Used Cars for Sale

2019 Nissan Sentra For Sale
28 Great Deals out of 585 listings starting at $14,988
2018 Nissan Sentra For Sale
37 Great Deals out of 345 listings starting at $11,497
2017 Nissan Sentra For Sale
17 Great Deals out of 242 listings starting at $10,488
2016 Nissan Sentra For Sale
13 Great Deals out of 214 listings starting at $8,212

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.