Question about 2003 Toyota Corolla

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Cylinder 1 misfire

I bought my car 2 days ago and immediately put octane 93 V-POWER at shell. The recommended gas is octane 87. Within 24 hours, the engine began to shake terribly and couldn't drive the car. I took it to the dealer where they diagnized code 0301 cylinder 1 misfire and suggested that i change the spark plug. Will this solve the problem? what do you think of my half-tank full of octance 93, what do i need to do about it? Drain it? Please i need your help!

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  • 124moses Oct 05, 2008

    Hey thanks for your response!

    one more question about the gas; is it ok to add octane 87 to the octane 93 already in my car? can that help speed up the repairing process? Thanks again1

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Change the spark plug, you might as well change all of them while you are at it.  Don't worry about the half full tank of gas, just run the car as low as you can and then refill with 87.

Posted on Oct 05, 2008

  • jkgstl Oct 06, 2008

    Adding 87 right away won't hurt and probably will help.


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