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i have trouble code p0172 and p0300 on my car i replace almost every sensor and still no go whatz wrong?
5 個解答
- NaughtumsLv 71 0 年前最佳解答
Why would you replace a bunch of sensors with these codes??? Such action is not indicated by either code.
The most likely causes for a P0172 are a dirty (not failed) MAF sensor, a vacuum leak or fuel pressure problems such as dirty injectors. Any of these in turn can trigger the P0300 random misfire code.
What I would do is clean the MAF sensor with intake (not carb) cleaner, check all the vacuum hoses and check the intake manifold gasket for leaks (also with the intake cleaner), clear the codes and see if they come back. If they do, take it to a shop and have them do one of those uber fuel injection system cleanings to blow the whole system out. Clear the codes again and see if it comes back.
ASE Certified automotive Service Advisor
- ?Lv 44 年前
may well be a defective starter/ solinoid.. If it develop into the alternator, the motor vehicle could start up the warning lighting fixtures furniture could be on the sprint continuously and the 1st signes could be as your utilising alongside the radio wouold fade out, then the motor vehicle could decrease out and no means in any respect...then you definately wait and the battery could recuperate, and the motor vehicle could restart.. yet could purely run for a shorter distance. each and every night you're able to ought to recharge the battery and in the morning the motor vehicle could start up first time every time. So i think of adjusting the alt develop right into a waist of pennies. per risk in case you could upload if the motor vehicle actuatly turns over once you place the substantial in and attempt to start up it.. or if each and every thing is lifeless?, whilst the engine wont start up- does the radio artwork fantastic?. If it develop right into a gas pump i could think of it may turn over and slutter to existence with what's in the carb/injection equipment
- 1 0 年前
what car? Sounds like so much gas that spark is shorted out or maybe a timing belt gone.
- 1 0 年前
It means you are running rich, so the first thing I would do is replace the o2 sensors, then the mass air flow sensor.
