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Have 99 tacoma engine light on changed gas cap still no pressure build up only problem engine light on?
Wiki User
∙ 16y ago
You need to have the computer codes read at the dealer or a parts store ( lots of them will do it for free ) the issue that your truck is having may have nothing to do with the gas cap. If you did have the codes read and a gas cap was the answer then disconnect the battery or better yet remove the ecc fuse for about a minute to reset the computer and see if the problem returns.
Wiki User
∙ 16y ago
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