code P0126?
Thread Starter
6th Gear Member
Joined: Sep 2006
Posts: 11,278
From: Gainesville, FL
code P0126?
I can't find any other mustang owners that have gotten this code. Searching with google I keep finding posts where people list all the codes!
Stop listing all the codes people!!!! It makes searching a bitch.
The code means coolant temp insufficient for stable operation. Does that mean my thermostat is stuck open?
Stop listing all the codes people!!!! It makes searching a bitch.
The code means coolant temp insufficient for stable operation. Does that mean my thermostat is stuck open?
Last edited by moosestang; Jul 13, 2012 at 11:58 AM.
4th Gear Member
Joined: May 2010
Posts: 1,277
From: Temple, TX
Thread Starter
6th Gear Member
Joined: Sep 2006
Posts: 11,278
From: Gainesville, FL
It seems to be the T-stat stuck open that causes this code. Now should I order a 160* like the one that came with the whipple kit or just drop a 180 in there. I doubt any local place will have a 160* Tstat.
I do need more sleep, but that **** is annoying!
I do need more sleep, but that **** is annoying!
4th Gear Member
Joined: May 2010
Posts: 1,277
From: Temple, TX
The standard 180* thermostat could probably be picked up locally for not too much... If this is a DD, I would get that to clear the code now, and then order the 160 because, like you said, it probably won't be on any auto parts store's shelves. If this is not a DD, then I'd get the one the Whipple came with.
Don
Don
Thread Starter
6th Gear Member
Joined: Sep 2006
Posts: 11,278
From: Gainesville, FL
The standard 180* thermostat could probably be picked up locally for not too much... If this is a DD, I would get that to clear the code now, and then order the 160 because, like you said, it probably won't be on any auto parts store's shelves. If this is not a DD, then I'd get the one the Whipple came with.
Don
Don
2nd Gear Member
Joined: Oct 2009
Posts: 459
From: Anchorage, Alaska
Check the coolant temp sensor on the intake. I had to replace one last week in my 4.0 Explorer with the same code. It wasn't the t/stat. The one in the Expl was a clip held sensor, not the normal threaded type. It was only $16 retail, and upped the mpg from 15 to back to over 21. Cured the problem with in less than 3 minutes and I didn't have to fight refilling the cooling system. Good luck.
Thread Starter
6th Gear Member
Joined: Sep 2006
Posts: 11,278
From: Gainesville, FL
Check the coolant temp sensor on the intake. I had to replace one last week in my 4.0 Explorer with the same code. It wasn't the t/stat. The one in the Expl was a clip held sensor, not the normal threaded type. It was only $16 retail, and upped the mpg from 15 to back to over 21. Cured the problem with in less than 3 minutes and I didn't have to fight refilling the cooling system. Good luck.
There's no coolant temp sensor on the mustang, only a head temp sensor.
It turns out I either read the code wrong or my aeroforce gauge was reporting it wrong. I scanned it with the sct and the codes were p0161 and p2272, both related to me unplugging the rear 02 sensor and replacing it with a wideband o2.
I still might get a 180. Everything I read suggests more engine wear with a 160. My coolant temps usually run at 172-176 on a cool morning, so we are only talking a few degrees higher with a 180.
Last edited by moosestang; Jul 13, 2012 at 02:53 PM.
Thread Starter
6th Gear Member
Joined: Sep 2006
Posts: 11,278
From: Gainesville, FL