When the engine is cold, more fuel is added to help warm it up to a desirable temperature. I may have to try it with Carb cleaner as the spray was more direct than an actual spray. There are several components that can result in problem engine idling, but most will be detected by using an onboard diagnostic code reader. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage. How serious is the P0172 code? In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set. The best air-fuel ratio modernly known to man is 14.
These codes came up at the transmission shop diagnostic. Sometimes, P0172 will also be accompanied by P0299 in turbocharged engines, which is a further indication that not enough oxygen is getting into the cylinders during firing. Coolant Temp: 64 Deg C, 147. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. For most people the first sign that anything is wrong at all is the service engine soon light coming on. Intake Manifold Pressure 46-50kPaA or 7. You can buy a code reader from any of the big box parts houses and read the code, or you can take the car to the parts house and have them read it for you.
This particular ratio was chosen because it was discovered to have the highest power output but lowest fuel consumption rate. The engine mangament is adding fuel to balance the fuel trim. If your spark plugs look good, problems with your ignition system can also preventing a spark. Disable the spark, crank the engine the cranking sound should be rhythmic,no long rhythmic then steady then long, just even. What the P0172 code means P0172 indicates that there is too much gasoline being detected in the exhaust gases exiting the combustion chamber.
I plugged the meter back in and got some interesting readings on the freeze frames. Could the temperature sensor cause the same symptoms? So please read our and when you're ready jump in! Ask the mechanic if he did that and follow you idea that the sensors may aftermarket and not suitable for yoyr car Jan 23, 2013 Peter. We do ask that you please read the info available on the site first so that we can help reduce repeat questions. Symptoms: You will more than likely not notice any drivability problems, although there may be symptoms such as a misfire. The connector may have a removable cover. Finally, how much oil does it use? On your Po326 can be caused to set by excessive engine noise bad knock sensor or the wiring to the knock sensor.
Now don't ask yourself; What should you do with P0172 code? I also notice today that the engine light went off for a while and then Came back on. If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. More will be added as we go! The code said it was the thermostat and I queried it with my tyre guy. The temperature sensor is not correct, this is 242 degrees F. The codes may help you narrow down the root of the problem.
If the codes clear on their own - or are cleared and do not come back - then your problem is likely solved. Could I possibly have a bad fuel pump? It can also cause fuel to get past the rings and thin the oil resulting in a larger consumption. O2 Sensor 2 was approx 0. A code P1624 is usually caused by you leaving the cruise control switch on all the time and cycling the ignition key that will cause that code to set. Note: As I was driving the Intake Air Temp sensor slowly dropped to -8 Deg C but that took 40 min and as I stated it was -12 Deg C outside. Otherwise check and clean all the air ducting going into the engine and replace the air filter. The injector spray cleaner you used, go to the intake manifold at number 4 intake spray there and see if there is a engine change.
If not, contact me directly and I'll set up a time to reset it and correct the problem. It means that the motor is running with a rich condition. Both crankshaft and camshaft are the same thing This vehicle is not equipped with a camshaft position sensor. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. The service engine soon light goes off every once in a while, only for about 20 miles, then comes back on. If you are unsure of any abbreviations, check out the acronym list by clicking on the link at the left.
Symptoms You will more than likely not notice any drivability problems, although there may be symptoms such as a misfire. You should also check that the spark plug gap is set properly. Here is how we suggest you proceed. I did some Live data scanning today with my meter and would like to tell you the results to see if it indicates or supports a vacuum leak or anything else. Basically this means that an oxygen sensor in bank 1 detected a rich condition too little oxygen in the exhaust. Fuel injection cleaning is a good , plugged injector which cannot atomize the fuel do set a rich fuel trim.
Or, you can start on the electrical side by doing a voltage drop on both the power and ground connections for the fuel pump. I have changed the o2sensor, the air management diverter valve, and solenoid that run the air pump, and cleaned out the throttle body with carb cleaner. They were replaced and the car is now returning codes p0172 and p0175 which are the only 2 codes coming up when the check engine light came on. Consult your service manual for it's location if you need help. When you disconnected the coolant temperature sensor all you did was richen the fuel condition, by increasing the fuel injector pulse width. They said the car needed all 3 oxygen sensors replaced.
I took the temp sensor out and tested it with a meter. A indicates that the air fuel mixture has too much fuel or not enough air. O2 Sensor 1 approx 0. P0172 Saturn Possible Solution: Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Joe Just wanted to lend my knowledge on this car. There are no other codes coming up.