Well, I filled the car up with mid-grade Shell gasoline one day and then decided to run some fuel injector cleaner through the system for the sake of keeping the car running in tip-top shape. Well, immediately after leaving the fueling center, the "Check "Engine" light came on and the car began shaking badly when trying to accelerate. However, it never shuts off. While the light remains on, still, the car may or may not sputter. It seems to come and go whenever it feels like doing so. At highway speeds, it shakes and stumbles so hard that if feels like I'm gonna destroy the engine by breaking something. Seems fuel-related, but with all the complexity of cars today, I understand it could be electrical as well. I need some help before taking it to a shop or something. Would like to see if I can remedy the problem myself.
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Re: Check Engine Light Came On...
You may have gotten some bad gas. This gas could have been contaminated with water from condensation in the gas stations tanks, or just from being old. I would purchase some HEET brand water remover or SeaFoam fuel additive. SeaFoam will seperate water and clean your injectors. Both are very good products. Also a cheeper remedy is that if you believe it is water, then I would try pouring some rubbing alcohol (like in the medicine cabinet) in the gas tank. An ounce or two won't hurt and it will help seperate the water and allow you to drive your car.
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Put more than 3 gallons of gas in your tank- $20 = 3.5 gallons here. The bottle of cleaner specifies how many gallons of fuel is to be mixed with the cleaner. Usually 8-10 gallons for the small bottle cleaners. Whatever. Follow the directions. It will likely run like garbage for about a quarter tanks worth, but should clear up eventually, UNLESS - there was something wrong before you put the cleaner in. Have you put cleaner in before now? If not, why did you decide to do it now? If there was an issue before, that issue needs to be cleared up before trying additives, unless you are absolutey sure you have a dirty injector or two. Also might help to buy the highest octane rated gas you can for a tank or two. The more expensive brands (Shell, Exxon, Mobil, etc.) usually have some detergents in their gasolines that help clean injectors on their own too.
Depending on the grade of fuel you used just run it down to empty and refill with correct grade, as long as you did use diesel or racing fuel youll be fine, and unless your hearing any odd noises like a pinging your fine, I also wouldnt suggest using fuel injector cleaner it doesnt really do much unless you use it reguarly
Which brand? What kind of gasoline? Some cars doesn't run with all gasoline grades also there is some gas station with poor quality of gasoline. Happened to my car too, I always use SHELL but one day I stop in the MOBIIL gas station to put some gas, got home and the next day the car won't start had to by the STP aditive to put in the gas tank. wait about 10 minutes and car starts fine. Another thing is my car won't run good with all gasoline grades I always use the regular one.
If the starter will turn over with ease, its not the starter. Sounds like the fuel pump or the fuel filter. Depending on the age of the car and the level of gasoline you use (regular, mid grade or super) things can get clogged up in your fuel filter and keep the engine from getting a good amount of gas, thus causing your problem. I'd check that first b/c its the cheapest to replace and its good practice to change it out every few years or try running a higher grade gas or running some "Chem-Tool" in it once you fill the tank up.
My check engine light will come on and my car will run rougher if I put in "subatandard" gasoline for too long. If you look in your manual, it will tell you the same thing. The easiest way for me to fix it was to go to a higher-end gas station like Chevron or Shell, fill up my tank with mid-grade or higher and throw in a bottle of good fuel injection cleaner. The manual says that you need to put at least 8 gallons of fuel in for it to make any difference to the sensors. It has always worked for me. The check engine light has turned off either immediately or within a few miles. I hope this helps!
dirty fuel fiter, yes. But also certain models require mid or premium grade gasoline. regular unleaded has more water in it than premium. Hense the pinging. When was the last time you have your fuel injectors cleaned. Try adding a gas treatment like STP gas treatment/fuel injector cleaner, that should help. If it continues then its the fuel filter or the fuel pump is also going out.
Hello, A lack of power can come from a multitude of problems and I will give you guidance and how to solve your problem. I would first change your oil and fuel filters and run some injector cleaner through your system to see if this helps your underpowerment. Next, I would do a tune up and replace your spark plugs and wires, oil and oil filter, rotary cap and button. You may have some faulty coil packs and possibly a fuel pump which is about to go out as well. I would try a mid grade or a higher grade of gasoline for your vehicle with the fuel injector cleaner, fuel filter, and air filter. If this does not solve the sputtering, Autozone offers free diagnostic of your electrical system and they will run a code check on your vehicle for free! I would be safe and guess this is just a clogged fuel filter or some corroded wires on your coil or your spark plugs so give your engine a good once over and this tune up. Yes, this can be a knock sensor as well to answer your problem and by knowing that I know you have enough mechanical knowledge to fix whatever is ailing your vehicle! The knock sensor senses when fuel is burning unevenly and causing "knocking" or irregular vibrations in the engine. I hope this helps you fix your problem!
This could be an O2 sensor or sometimes with lower grade gasoline I have seen different cars act this way. If the O2 is not bad try mid to super gas or fuel system treatment/cleaner to see if there is a change. I know in my area there is mostly 10% ethanol which will lower octane. I hope this helps!