Maf/iat?

[harnalien]

Ok, so i got my harness and started reading the instructions to find out if i'm missing any sensors and it looks like i'm missing some pretty important ones. it looks like i don't have the maf sensor or iat. i'm pretty sure the maf is the part that traditionally goes by the factory airbox (which i don't have). what i can't find is info on where the intake air temperature sensor (IAT) goes. man, it seems like it's always something that sets me back another few hundred bucks and stops me from being able to move forward . anyway, i posted a pic of what i have and was hoping someone could confirm some things. also, if someone could post a pic of their IAT and how it's mounted, that would be great. Can pic 1 be plugged (if so with what), or does something go there. I believe pic 2 is where the EGR went. Where does the other end of the hose on pic 3 go to? Thanks for any responses i can get.

[usmcchevy]

Hole 1 is for your EVAP solenoid and hole 2 is EGR. Should be able to plug both, use a freeze plug for the EGR and a pipe thread plug for the EVAP. Or you can get the correct block off for the EGR, someone should chime in with part number for that. IAT sensor is in the MAF which you can find on car-part.com

EDIT: and 3 goes to the valve cover.

You can see the EGR block off here



Oh and the missing stuff just seems to be part of the GEN III swap. So far I've had to track down a TAC, oil cooler block off and still looking for a trans dip stick. fun fun!

[hayhauler71]

iat is part of the maf
1 can be plugged [canister purge solinoid]
2 egr [ some had some did not ]
3 vent tube right side valvecover

hope this helps you out

[harnalien]

Awesome, thanks guys. I tried searching on car part, but can't exactly figure out what part to search for. I searched for the MAF part number the harness instructions gave me and it said $290 bucks! Surely I can get an airbox and tubing with the sensors for better than that at a salvage yard, right? Ok, I had already ordered the EGR block off plate, but wanted to make sure I was getting the right thing.

[skoffice]

Depending on how the harness is set up and what year it was for, the IAT can also be a seperate sensor from the MAF. In the later years they combined the two into the single 5 wire MAF. If they are two seperate connectors, then you would need an early 3 wire MAF sensor and a little 2 wire IAT sensor that you just drill into your intake tubing and plug in.

[harnalien]

Originally Posted by skoffice

Depending on how the harness is set up and what year it was for, the IAT can also be a seperate sensor from the MAF. In the later years they combined the two into the single 5 wire MAF. If they are two seperate connectors, then you would need an early 3 wire MAF sensor and a little 2 wire IAT sensor that you just drill into your intake tubing and plug in.

You know what, I just check my harness, and the plug I suspected to be the one for the MAF has 5 pins/connections. The photo of the harness in the instruction shows there is a separate IAT plug, but I cannot find it on my harness. So i think my harness is set up for the 5 pin w/ the integrated IAT. So I guess I'll start calling some yards to check on pricing. Thanks all!

[BR3W CITY]

you can tune in Speed Density and delete the MAF if you'd like.

[Big Port Jimmy 6]

There is a delete plate for the egr hole. My intake has one, I will try to remember to snag a pic, Jay

[Groyd]

Originally Posted by usmcchevy

Hole 1 is for your EVAP solenoid and hole 2 is EGR. Should be able to plug both, use a freeze plug for the EGR and a pipe thread plug for the EVAP. Or you can get the correct block off for the EGR, someone should chime in with part number for that. IAT sensor is in the MAF which you can find on car-part.com

EDIT: and 3 goes to the valve cover.

You can see the EGR block off here



Oh and the missing stuff just seems to be part of the GEN III swap. So far I've had to track down a TAC, oil cooler block off and still looking for a trans dip stick. fun fun!

Did you delete the MAF? I'm looking to get an air filter and I think I need an elbow like you've got in this pic? Part # would be helpful if you've got it.

Thanks
Matt

[usmcchevy]

Originally Posted by Groyd

Did you delete the MAF? I'm looking to get an air filter and I think I need an elbow like you've got in this pic? Part # would be helpful if you've got it.

Thanks
Matt

No the MAF is still there, if you look right next to the air filter there is a label with a number on it, thats the MAF. That pic is of my old '00 Silverado, not a swap truck, but here is a link to the kit: http://www.summitracing.com/parts/KNN-77-3021KP/

In my swap truck I used a cheap ebay intake like this: http://www.ebay.com/itm/99-07-Silver...=auc43aa36e2e0

Slight note, if your MAF is from a 07+ truck it will be smaller and require a little work to make it fit.

[Robznob11]

you can get an rubber oil plug that works just like the rubber freeze plug that will plug 1 where the purge valve went. thats what i did. I think its 1/2 in