hello fello HHR owners, so this is my first HHR but not my first car. I also have lots of experience building 2 stoke bike/motorcycles. Now for messing with the carburetor on a 2 stroke I've learned that you can mess with the butterfly improve your car's performance but because of my eccentric knowledge I'm getting reduced engine power correct me if I'm wrong but if you're getting more airflow it forces the vehicle to produce more gas giving you better performance so why is the computer taking so long to correct the butterfly. Another question do our computers get sent to GM's database or something when we know a little too much for our own good. They say you can't take the throttle apart well guess what boys I took the throttle apart and my engines running they say it's not even supposed to run. But I'm having the same problem several of you have had where if you touch a stuck throttle and you force it open it puts the air system on wack somehow I'm hoping I have the same luck some of you have where it will slowly resets itself cuz I also cannot afford a factory reset. But seriously these are smarter cars in the old days there has to be a manual format to reset my butterfly can someone please tell me how to do it not for GM but for an HHR. Because I've seen the GM video and I've done it for 2 days now I'm getting no results also I have used three different computers or whatever they're called to erase the codes they all say successfully erased but the check engine light is still on and when I run it through the database it tells me the same p 0 2 2 3. Not only that for some reason one of the computers was telling me something about fuel pump ground bad but yet no code was coming up for that and if my fuel pump ground is bad shouldn't my fuel pump not be working.

 

Moved to a new thread

The computer strives to maintain a constant Air/Fuel ratio of 14.7:1. You can't do anything about it short of changing the computer firmware.
The computer measures the air flow and adjusts the injectors to keep the A/F at 14.7:1.
The throttle is electronically controlled. I don't know how you could drive with the electronic part disabled. Nobody ever said that you can't take it apart, just that it is not serviceable (they don;'t sell component parts).
If you tore it apart you broke it you need to get a new one. Used, they are cheap.
I'm sorry but I can't read the wall of words. I hope that answers the question. Erasing codes erases codes it does not fix anything.
P0223 means that the Throttle position sensor is reading a High voltage. This could happen if somehow the butterfly was held wide open while the key was turned on, or if it got stuck more than wide open or the sensor is broken in a more than wide open state. I don't have the time right now to research any more.
Posting the year, model and engine is helpful.

 

If you force open the throttle body on an HHR you need a new one because you just broke it....

 

Could be a loose connection, read causes and solutions, here

https://repairpal.com/obd-ii-code-p0223


as for the throttle body, if you took it apart , there is the problem, we get a discount from RockAuto.

 

thank you for your reply and I have taken your advice since I cant get the computer to agree with my adjustments I found a throttle at a junk yard with the same gap I maid and some how it word and now 2008 hhr 2.2l runs like a SS. Wonder if taking it apart breached some kind of fail save to govern my speed.

 

No. Just, no.
Do you read what you write before you post it?

 

No, you just broke it. THERE IS NO ADJUSTMENT. It is not a carburetor.

I suggest you study up on cars made this century before you start messing with electronic components. They have nothing in common with 2 stroke motor cycles.

Tearing thing up as a learning experience is great, if you can afford it.

 

I vote for closing this before someone gets hurt... LOL OP seems happy.

 

Yikes.... You got my VOTE .......

 

The ayes have it. Closed.