....as long as we're on the same page.
Sensor wiring question please help
Thread Starter
Instructor
Joined: Nov 2008
Posts: 170
Likes: 0
From: Odessa Tx
Sensor wiring question please help
Ok the senosr that is attached to the underside of the plenum kindof in front of the distibutor that jhangs upside down... I cant locate the wire connector that plugs into the sensor. Where do I look for it now that it is not obviously visible to me? This may be why my MAf sensor is not working correctly I dont know. Someone please help me out here.
Burning Brakes
Joined: Feb 2002
Posts: 804
Likes: 5
From: Fresno CA
That's the IAT sensor and that 2-wire harness runs on the RH side of the distributor (right by the distributor clamp bolt) and has a 2-way Weatherpak connector coming off the main ECU harness right there at the back of the engine...sorry I don't have a photo handy.
Thread Starter
Instructor
Joined: Nov 2008
Posts: 170
Likes: 0
From: Odessa Tx
I have seen two male plugs that are in that location and one looks like it may plug into it but it wont reach over to the sensor....These two plugs are just laying out on top of the passenger side valve cover becuase I dont know where they go. Is there some type of extension maybe?
Burning Brakes
Joined: Feb 2002
Posts: 804
Likes: 5
From: Fresno CA
Yes, the harness will have the mate to the ECU end of the harness (regular 2-way WP) on one end and the male plug that will mate with the IAT sensor on the other end (going from memory it's like 8-10" long). If you're missing that harness you could make another one using the correct connectors, seals, and pins. The other connector you are seeing in that area no doubt is the EGR solenoid connector which is a different style of Weatherpak (not the regular 2-way) it's similar to the two used up front on the diverter valve solenoids.
Last edited by eguyett1985; Jan 4, 2009 at 09:55 PM.
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
I have seen two male plugs that are in that location and one looks like it may plug into it but it wont reach over to the sensor....These two plugs are just laying out on top of the passenger side valve cover becuase I dont know where they go. Is there some type of extension maybe?
Thread Starter
Instructor
Joined: Nov 2008
Posts: 170
Likes: 0
From: Odessa Tx
So it actaully has a removable link (wiring harness) that may not have been put back on? I purchased the harness off of ebay so I will see if that will work. Maybe one of the two plugs that are not hook up are the IAt sensor plug. I did take pics and put them in my computer pics but cant figure out how to post them...How do you do this? Or can I email them to you?
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
So it actaully has a removable link (wiring harness) that may not have been put back on? I purchased the harness off of ebay so I will see if that will work. Maybe one of the two plugs that are not hook up are the IAt sensor plug. I did take pics and put them in my computer pics but cant figure out how to post them...How do you do this? Or can I email them to you?
Yep, the IAT harness plugs in at both ends. On the pics you'll have to post them up here or email them.
Thread Starter
Instructor
Joined: Nov 2008
Posts: 170
Likes: 0
From: Odessa Tx
lol egr solenoid...thats another problem...I dont have anything but a single wire coming from the egr valve. The guy said he didnt hook up the egr valve when he deleted the air pump system. What would you do? The valve itself is still there but no electrical plugs for the pictured plug. Do I absolutely need the egr hooked up
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
lol egr solenoid...thats another problem...I dont have anything but a single wire coming from the egr valve. The guy said he didnt hook up the egr valve when he deleted the air pump system. What would you do? The valve itself is still there but no electrical plugs for the pictured plug. Do I absolutely need the egr hooked up
What are the wire colors you have on these connectors include the tracer color if it has one?
Thread Starter
Instructor
Joined: Nov 2008
Posts: 170
Likes: 0
From: Odessa Tx
Well the egr valve is on the intake so how do you block it off. Does the egr valve produce vacumm out of the little neck that comes out of the side? can I just leave it on and plug that neck? Do I need to unplug that single wire connector?