Q: P0175 p0101

asked by on February 10, 2017

I have replaced the air mass meter,all plugs and coils,

My car has 109090 miles.

Car is getting worse gas mileage Inspection $94.99 - $114.99 Get a Quote

Check the fuel injectors and see if they are leaking and not atomizing properly. The injectors could be working fine but dripping instead of spraying. I recommend performing a injection cleaning on the engine to see if the injectors will clean up. If the engine light will not go out after cleaning the injectors, then either the injectors are damaged and leaking or the fuel pressure regulator is maxing out the pressure on the injectors making them spray more than normal in light load conditions. If you need further assistance with your engine running rich, then seek out a professional, such as one from Your Mechanic, to help you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Hear clicking sound when air conditioner is on
The clicking noise is most likely being emitted by one of the actuators that control the ducts in your air conditioning system. When they go bad they often make the clicking noise you are referring to. Depending on where the...
My car is not getting fuel
You should have the engine scanned for codes first to see if there is a code to diagnose for no fuel pressure. The fuel pump will not run if the inertia switch is tripped. Look behind the right passenger side...
Car will not start just cranks. Already checked starter, alternator, battery, replaced crank position sensor. Getting spark and fu
Remove and check the air filter (https://www.yourmechanic.com/services/air-filter-replacement) and replace it if it is wet. If there was water in it, then you may have damaged the mass air sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement) or other components and may need to have the vehicle...
Is it safe to switch from 5/30 weight formula Shell oil to a synthetic oil to store for the winter?
Hi, thanks for writing in. You should not need to change the oil from the 5/30 you have in order to store the car for the winter. I would recommend filling the car up with fuel and having the tire...
No start
Hello. A no start condition can be caused by many things. If you have verified that spark and fuel pressure are good then the next thing I would look at is the engine management system. If the engine is getting...
Misfire happens at 1500 rpm's.
Hi there. Check the fuel injectors one at a time by disconnecting the harness and see if the engine stumbles or not. If the engine stumbles when the injector is turned off, then the injector was working. If the engine...
Car Accelerates Slowly Unless I Push Aggressively on Gas
Hi there. The dealership is probably correct in this case. A dirty air filter can cause acceleration problems. However, it is also possible the fuel filter as well is dirty and will need to be changed as well. Typically it...
Kia Optima hesitates when in gear. Does not while in park. It has slowly became worse over the course of many months. It still dr
If the transmission is not faulty (e.g., clutches slipping) and thus the problem is engine related, among the possible causes of the hesitation are faults in the throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement), mass airflow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement), vacuum leaks, a clogged fuel...
My truck is doing a very loud thumping sound and wont go over 25
In most cases a loud low thumping noise is an indication an engine main crankshaft bearing has gone bad or you are losing oil pressure in the engine. I recommend not driving the vehicle and contact a mobile mechanic like...

Related articles

Is it Safe to Drive With an EVAP Leak?
While it is safe to drive with an EVAP system leak, it causes excess car pollution. Fixing the problem is often as simple as tightening the gas cap.
Symptoms of a Bad or Failing Automatic Shutdown Relay
Common signs include the car starting but stalling immediately, the Check Engine Light turning on, and the engine not cranking when turning the key.
Symptoms of a Bad or Failing Fuel Pump Shut Off Switch
The switch may have tripped and must be reset if your engine suddenly stops while driving, has issues starting up, or turns over without starting.