Where is my diagnostic port?

[WhiteDevil]

Hey i got a code and i got a OBD I code reader, but where is my diagnostic port? Thanks guys

 

[WhiteDevil]

Its ok im an idiot i knew where it was but it didnt look right i just had to take the freakin cover off. So i got code 157 which is low maf voltage. What would cause that?? Its wierd.

 

[StormTrooper]

under the hood passenger side near the firewall two plugs one large and a one wire connector

 

[Slow5.0]

157 is MAF sensor low voltage , just take apart MAF and clean hot wire with sprey