Throttle Sensors vs Wire Round 7

[OBSalsoNNBS]

I'm tagging @mikez71 to be sure he sees this. When you tag a member, start by typing the "@" symbol, then start typing the username. A list of matches should display and you can pick the correct one on that list. Otherwise the target member may not see your post.

@Fless
Haha thanks! I was wondering since I didn't see any replies w/o refreshing.
In my defense on the last post, my browser hadn't refreshed.

 

[Joseph Garcia]

Did you inspect ALL of the electrical ground points on the motor and in the engine bay to ensure that they are clean and tight? Many otherwise unexplainable issues end up being ground-related issues.

 

[mikez71]

Also, there maybe a TPS relearn procedure that needs a scantool.. or

How to perform a GM throttle body relearn procedure

Learn how to do a GM throttle body relearn to establish a new baseline idle after replacing or disconnecting the throttle body.

ricksfreeautorepairadvice.com

1) Start the engine and let it idle in park for 3 minutes. During that period the idle may be higher idle than normal.
2) After 3 minutes, turn the engine off and leave it off for 60- seconds.
3) Start the engine again and let it idle in park for 3 minutes one more time. During these run periods, you may see a check engine light. Scan for codes and if you get throttle body-related codes, clear them.
4) If the idle speed is still off, drive the vehicle at speeds above 44 mph and operate several acceleration and deceleration cycles. Then repeat step #3 one last time.

 

[89Suburban]

Good job @mikez71 .

Here is a good detailed video about the TPS install and how to clock it properly. Saved my asz.

And some pics of my TPS's, note the difference in the clocking of the sensor hub. Also those brass connectors can loosen up as well.

What did you do to your NNBS GMT900 Tahoe/Yukon Today?

Might need the radiator side flaps.. Where does one find these?

www.tahoeyukonforum.com

 

[OBSalsoNNBS]

Did you inspect ALL of the electrical ground points on the motor and in the engine bay to ensure that they are clean and tight? Many otherwise unexplainable issues end up being ground-related issues.

@Joseph Garcia
No I didn't. This is one of those times you can look back on and say, "That's how I learned that."
So thanks!

How many of these things am I looking for?

 

[OBSalsoNNBS]

Also, there maybe a TPS relearn procedure that needs a scantool.. or

How to perform a GM throttle body relearn procedure

Learn how to do a GM throttle body relearn to establish a new baseline idle after replacing or disconnecting the throttle body.

ricksfreeautorepairadvice.com

1) Start the engine and let it idle in park for 3 minutes. During that period the idle may be higher idle than normal.
2) After 3 minutes, turn the engine off and leave it off for 60- seconds.
3) Start the engine again and let it idle in park for 3 minutes one more time. During these run periods, you may see a check engine light. Scan for codes and if you get throttle body-related codes, clear them.
4) If the idle speed is still off, drive the vehicle at speeds above 44 mph and operate several acceleration and deceleration cycles. Then repeat step #3 one last time.

@mikez71
Thanks, that is the exact procedure I used. It's only doing the high rev after the engine is hot. Wait 20 min and it is normal. I think you and 89suburban are onto something with the "install it correctly" idea. I'm going to start over with my ACdelco sensor.

 

[OBSalsoNNBS]

Good job @mikez71 .

Here is a good detailed video about the TPS install and how to clock it properly. Saved my asz.

And some pics of my TPS's, note the difference in the clocking of the sensor hub. Also those brass connectors can loosen up as well.

What did you do to your NNBS GMT900 Tahoe/Yukon Today?

Might need the radiator side flaps.. Where does one find these?

www.tahoeyukonforum.com

@89Suburban
Thanks! One of my terminals came off too.
Funny, I actually came across that bulletin he used in the video today but disregarded it because it applied to 08-11 models (mine is 12) but it still has relevant info.

I think I just put it on clocked incorrectly.

Man, if that's the case I'm going to be embarrassed!

 

[mikez71]

No reason to be embarassed! GM just makes things complicated to screw with us.
Nobody in their right mind knows this crap until it happens and they have to deal with it..

 

[OBSalsoNNBS]

"GM just makes things complicated to screw with us."
LOOOOOOOOOLLLLLLL ain't that the truth!

I popped the AC Delco sensor on. The quality difference was noticable.
Not sure if I'm out of the woods yet, gonna drive it tomorrow to shake it out.

 

[89Suburban]

> fingers-crossed <