Steven Ressue

I made a big mistake trying to shorten my MAF wire harness. I have an LS3 Erod and I cut the MAF harness wires before I looked and saw there were two tan wires. Now I'm not sure how to reconnect them. Is there a way of finding out what tan wire goes to the "E" pin "intake air temp sensor signal" or what tan wire goes to the "D" pin "low reference"?

Thanks

PKinsella

Sounds like you need a wiring diagram and a volt meter!

RLSebring

Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor

E 0.35 TN 472 Intake Air Temperature Sensor Signal

Steven Ressue

I have the plug diagram. What I need is how do I determine which tan wire coming from the ENGINE HARNESS is the "low reference" and which tan wire is the "Intake air temp sensor signal"?
Thanks

PKinsella

I don't know what it is for this car specifically, but it seems like the reference should read around 5v continuous (guessing it's a 5v reference), while the the IAT wire would read something different, but I'm not sure how much different it would be. And the IAT signal should vary while the reference signal shouldn't.

That's just something I would experiment with if it were me.

Pretty stupid to have two of the same color wires!

Neumonic2002

PM me your cell number or email, I have a great close up picture I took recently for a friend in a similar situation I will send you.

Steven Ressue

Located information on pin outs and did a continuity test from the ECM connector to locate what tan wire goes where. All set.
Thanks to all for the help.

Steve

Blackonblacksls

Do both of these wires go to the break out iat sensor?

Ralph Edward Congdon

I did exactly the same thing! Did you get the information you need? If so will you share. Thank you, Ralph Congdon futurepastco@hotmail.com