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Review title: Money Saver!
Product review: The Aquus Innova OBDII reader just saved me hundreds of $$! My '99 MB E320 had a Check Engine light on and with code reader and a little bit of internet searching for user experience with the code, I was able to diagnose and clear the problem myself. Would you believe it was caused by the gas cap? Apparently I didn't tighten it fully after a fill up.
