![]() LookĪt short term fuel trim (STFT) and long term fuel trim (LTFT) with your This creates a lean fuel mixture andĬonditions that are ripe for stumble and hesitation (also misfire). Spray as much fuel as they normally do, or will “dribble” fuel instead Varnish deposits have built up in the tips of the injectors, they won’t Information to determine how much fuel is needed to maintain the correctĪir/fuel mixture and when extra fuel is needed if the throttle suddenlyĪnother common cause is dirty fuel injectors. Tells the computer how far the throttle is open. If there are no misfire codes, a common cause ofĪcceleration stumble is a bad throttle position sensor (TPS). P0222 to P0229 Throttle position sensor codes P0120 to P0124 Throttle position sensor codes.It is under load is an engine that is either sucking too much air, not Hesitates, stumbles or misfires when accelerating or when There can be a misfire too from the cylinders. I almost forgot, you HAVE to get the oil changed as soon as possible because there is probably gas in the oil now. ![]() It won't be cheap, but they will get it done. I hope this helps you, and remember that if all else fails the dealer can fix it. Just make sure that the engine is up to running temperature before turning the car off and you shouldn't encounter this problem again. I was quoted upwards of $525 to fix this problem until I talked to a Mazda mechanic and found out how to do this myself. If this process doesn't work then you probably need new spark plugs which is going to cost quite a bit. This process CAN ruin your starter, but is essentially the same process that the dealership will you except that they will remove the spark plugs to drain the fuel and then charge you for new ones. When the car finally cranks over there will be a huge cloud of smoke so don't be alarmed when it happens. This process can sometimes take awhile and will drain your battery, so have it connected to an additional power source ( i.e. Replace the fuse and crank the engine in 10 second intervals without touching the gas or you will reflood the engine. With the fuse removed, crank the engine for a minute to remove any fuel flooding the engine. It will be listed under the fuse cover under the hood. The best thing to do is to remove the fuse to the fuel pump. It sounds like the engine might be flooded.
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