Harness Help-Identify my 2 missing connectors Please!

[Chevy4Life]

It's been a while since I've been through one of these. I know the pink,tan,blk and blk/wht stripe is the MAF, but what does the GREY,BLUE,BROWN go to?

Thanks!

[homemade87]

Just a shot in the dark . I dont know what the wire colors are but the 3 wire looks like its in the location of where the harness first goes under the intake cover . There is a purge valve right there . Could be it . If so you do not need it . Find a wire diagram and check wire colors in that area .

Also depends what year harness but , could be map sensor too . Some intakes had them in the front .

The five wires does have the right colors for the map .

[Korted]

The five wires together might go to the MAF. It looks like low coolant connector just upstream in the harness. I can't figure out how to upload pics - MAF is a purple, flat, 5-wire connector.

[rctrooper1]

I see a dark green, brown and grey going to alternator and of those 3, dk green is a pin out on #18 green side

Clean it good and make sure is grey and not yellow

Jz

[Chevy4Life]

Thanks for the help guys. OK I took a closer look at the wire colors and after peeling back the harness a little I can see that heat has discolored them. The wires are GREY,BLUE and BROWN.

[Chevy4Life]

I found this so it does appear to be the Alternator.