Q: My 98 accord keeps giving me system too rich , i changed the o2 sensors both of them , the map sensor, the distributer , spark plu

asked by on

My 98 accord keeps giving me system too rich , i changed the o2 sensors both of them , the map sensor, the distributer , spark plugs, gas cap and it keeps giving me p0170,and p0172 i dont know what else to do

My car has 205921 miles.
My car has an automatic transmission.

P0172 means too much fuel or, conversely, too little air, is being supplied and thus the air fuel ratio is sub-optimal. Other causes of this code setting, that are not reflected in your list, include a dirty mass air flow sensor overstating the amount of air entering the engine which may cause excessive fuel delivery, leaking fuel injectors allowing too much fuel to enter the combustion chamber, a faulty fuel pressure regulator, a vacuum leak, a stuck engine cooling thermostat or a faulty coolant temperature sensor. There are other possibilities as well, but the foregoing are principal causes to check first. If you desire that this problem be diagnosed by a certified Mechanic, dispatched by YourMechanic right to your location, please request a check engine light diagnostic - P0170, P0172 and the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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. My 98 accord keeps giving me system too rich , i changed the o2 sensors both of them , the map sensor, the distributer , spark plu

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: Q: Light not turning off

Hello. A common problem for your vehicle is the lights staying on due to a brake switch malfunction. The switch tells the car when to turn on the brake lights and when to turn them off. In most cases, the...

Q: Car makes whining noise when I start in the morning

Hello, thank you for writing in. The vehicle will make noise when cold for several reasons. If you belts are loose at all, it may take them a while to warm up and grip the pulleys the way they are...

Q: 1998 Ford Ranger 2.5L stalling when put into drive.

Your transmission has internal issues with the solenoids or the transmission is trying to go into reverse and forward gears at the same time stalling the engine. Have each of the codes tested to see if it is internal transmission...

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...