EEC-IV test port??

thomasinnv · #1 (**permalink**) 02-28-2009, 04:04 PM

where is the EEC-IV test port on my 2000 psd? i am not talking about the OBD2 port under the dash. the book on my scan tool says the EEC-IV port has to be used to run the contribution test, but i can't find it? i have looked every where under the hood, and under the dash. it is supposed to be a 6 pin plug and a single pin plug with it. any ideas? i know some of you guys on here have done the contribution test on your trucks, so someone knows where to look for the plug. help??

**Dave** · #2 (**permalink**) 02-28-2009, 04:07 PM

What kind of scan tool are you using. The OBD II port is the only port available on these trucks

**Dave** · #3 (**permalink**) 02-28-2009, 04:09 PM

The contribution test should be run with the OBDII port. How old is your scan tool

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