Skip the auto shop - Our mechanics make house calls

Q: Car sputters when 1st press on gas

asked by on

Recently had catalytic converter replaced and 3 weeks later oxygen sensor replaced. Shortly after car sputters when press on gas. Acts like it wants to stall out. I've done gas treatment but didn't resolve issue. Do you think it the fuel pump or could it be bad oxygen sensor that was installed?

My car has 25700 miles.
My car has a manual transmission.

You should have the computer tested and fuel pressure tested to help isolate the problem. You may have a fuel or ignition related problem that needs to be isolated first. The igniter or coil may be not supplying enough spark for the engine to accelerate properly.

If you need some help with getting this fixed, consider YourMechanic, as one of our mobile technicians can come diagnose the sputtering issue firsthand for an accurate repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Car sputters when 1st press on gas

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car wont start

This suggests you may have an alternator that has failed and potentially fried some of the wiring causing the burning smell and the smoke you describe followed by the loss of all power. Generally, when an alternator fails it will...

Q: Car shifts harder than usual wen shifting from drive to reverse. Slight jerk. Automatic trans. 07 corolla. Please help

Hi Landis. Thanks for sending in your question today. A rough shift can be caused by multiple issues, but most commonly in an automatic transmission is debris trapped in the hydraulic lines. Having the transmission fluid flushed and filter changed...

Q: The car cannot start right away when the engine's cold

It sounds like you are on the right track with thinking it's a fuel-related issue with your 2000 Audi A8 Quattro. Your Audi may not be getting enough fuel for a cold start due to incorrect sensor data. Or it...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...