Check engine light came on right after I filled up with gas. has dianostics ran and got code. check engine light was reset. a week later filled car up with fuel again. Check engine light came on. Car runs with no apparent issues.
It could be an emmissions problem. Sometimes even the gas cap being loose can cause a code. Make sure to tighten the cap when done refuelling...you should hear repetitive clicks when its tight. Other components related to code p0172 are o2 sensor(bank 1) and catalytic converters. Hope this helps!
When you fill your gas tank do not over fill . Stop when the nozzle clicks off the first time, don't top it off. Your over filling and the extra full is going into the vapor canister . So when the engine computer turns on the purge solenoid instead of fuel vapors it is get liquid fuel ! P0172 is a rich code . It only happens after a refill !
SOURCE: check engine light flashing, car shaking and smells like gas
it could be anything have the code checked odds are it is a bad sensor
SOURCE: 2001 Hyundai XG-300 witn 86,000
i have run into this before. the mass air flow sensor is contaminaited take it out clean it with parts cleaner on the element first if this doe not fix it replace it. thank you
SOURCE: P0336 Code
The code P0336 is crank shaft sensor performance code.The sensor could be faulty and not picking up a good signal.The after erasing the code,the problem still exists ,so it is then a pending code and when you shut the car off and restart it the code reappears.Just another idea here ,if you have not had a tune-up recently(plugs,wires,airfilter,etc.)you could get unwanted codes and your engine will not perform as it should.This could cause poor gas mileage as well.John.
SOURCE: check engine light on,running rough code P0172
When I see all these codes i instantly think of two things. Vacuum leak especially intake manifold gaskets and Mass air flow sensors. Spray the engine with carb cleaner when its running and see if you get it to rev up,run rough or run different. Next unplug the MAF and drive the car, see if it runs normal.
SOURCE: 2006 Tuscon Check Engine light just came on, car running fine
dear friend-filling the tank has nothing to do with the engine light.in order to cancel this light,disconnect the battery and leave for a while.reconnect battery and check light,it should be of,if the same happen again take vehicle to a dealership for a diagnostic report.
1,682 views
Usually answered in minutes!
×