Q: Truck sputters at 1500 rpms

asked by on

With my truck in park if I throttle it up it sputters at 1500 rpms. Throttle higher it smooths out. Check engine light has came on checked code it says catalytic system failure fuel lean or something like that bank 1. I replaced both outflow inflow o2 sensors on driver side. Check engine light came back on saying same thing 5 days later and truck still sputters. It has no hesitation when I take off or pass someone. But when going down road around 1500 2000 rpms it sputters and also when in park also replaced spark plugs.

My car has 250000 miles.
My car has an automatic transmission.

In some cases, an OBD-II code like you’ve described can be triggered by the electrical harness attached to a sensor. So, it’s possible that the reason you’re having this idle problem is due to the harness being faulty as opposed to the O2 sensors themselves. Try replacing the electrical attachments from the sensors to the ECU and see if that clears things up. If not, you’ll most likely want to have a professional mechanic complete a detailed check engine light inspection to pinpoint the source of the problem.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Truck sputters at 1500 rpms

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: How do I adjust the four-way power driver seat?

The four-way power driver seat is very easy to adjust: 1. Manually move the seat forward or backward by lifting on the seat adjustment handle at the front of the seat, moving the seat forwards or backwards, and releasing the...

Q: Q: Check engine light

The random shake is probably due to the misfires that are implicit in the Codes that you have supplied. Diagnostic Trouble Code P0152 sets if the oxygen sensor (bank 2 sensor 1) is shorted, the wiring to the sensor is...

Q: Q: Car shakes and turns off

Hello. There are many factors that can cause a car to stall upon start up. You could be experiencing a fuel supply problem or a fault with a sensor in the engine management system. The first step with any drivability...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.