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Quick Links: Tow hooks (front or rear) O2 sensor plug mystery Where to get timing belt kit, water pump and head gasket? Any one know what this part is called? Stereo AUX connection Engine is way louder than it used to be. It sounds the same but just amplified...

99 with codes 300, 302,306...help

Discussion in '3rd Gen 4Runners (1996-2002)' started by crazy53, Mar 7, 2016.

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Mar 7, 2016 at 3:47 PM

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crazy53 [OP] New Member

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Mar 7, 2016

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HELP>>>>I have a 99 with a v6 and it runs lousy intermittently. This has very poor power and check engine light will come on and sometimes flash. I have checked codes and they are 300, 302,306. I have changed the plugs and coils. I have also found water in the air box every time I take it off. Sometimes this will run great and than it will run real bad.

crazy53, Mar 7, 2016

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Mar 9, 2016 at 8:39 AM

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irishfury New Member

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Jan 27, 2016

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Sean

Birmingham, Alabama

Vehicle:

1999 Black 4Runner Limited 4wd

If you've changed the plugs and coils, then it's probably bad fuel injectors on cylinders 2 and 6. About a month ago, I had error code P302 and was having poor engine power. I ended up replacing the fuel injector on cylinder 2. It's been running great ever since.

irishfury, Mar 9, 2016

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RonT4R likes this.

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