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I have been working on my own obd II MPG Gauge for a while now using the elm323 and the pic16f877a but have run into quite a few snags. I think im going to give up and start working with you guys. Hopefully I can be of some help. I have ordered all of the parts and went with the 16x2 LCD. I have not ordered an obd cable yet but I am thinking of ordering the standard male 10 pin for $5.
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