Code p1289 - MustangForums.com



GT S197 General Discussion This section is for technical discussions pertaining specifically to the V8 variation of the 2005 and newer Ford Mustang.
Sponsored by:
Sponsored by:

Reply
 
 
 
Thread Tools Search this Thread
Old 05-11-2014, 05:01 PM   #1
yourmyboybh1026
3rd Gear Member
Thread Starter
 
yourmyboybh1026's Avatar
 
Join Date: Apr 2009
Location: Clearwater FL
Posts: 597
Default Code p1289

So after I installed my Roush, I got this code. I read it with my SCT and it said "Cylinder head temp sensor high input". Does anyone know the cause?
yourmyboybh1026 is offline   Reply With Quote
Old 05-11-2014, 05:40 PM   #2
SpartaPerformance
4th Gear Member
 
SpartaPerformance's Avatar
 
Join Date: Apr 2010
Location: Long Island, New York
Posts: 1,291
Default

You installed your Roush what?
SpartaPerformance is offline   Reply With Quote
Old 05-11-2014, 06:56 PM   #3
yourmyboybh1026
3rd Gear Member
Thread Starter
 
yourmyboybh1026's Avatar
 
Join Date: Apr 2009
Location: Clearwater FL
Posts: 597
Default

TVS supercharger.
yourmyboybh1026 is offline   Reply With Quote
Old 05-11-2014, 08:37 PM   #4
yourmyboybh1026
3rd Gear Member
Thread Starter
 
yourmyboybh1026's Avatar
 
Join Date: Apr 2009
Location: Clearwater FL
Posts: 597
Default

Looks like it could be the cylinder temp sensor, which I think I had to some of the wires going to that, so maybe something happened.
yourmyboybh1026 is offline   Reply With Quote
Old 06-12-2014, 10:25 PM   #5
alaskarider
 
alaskarider's Avatar
 
Join Date: May 2014
Location: Alaska
Posts: 3
Default

Your temp sensor is either unplugged or has a bad connection/ broken wire. It's probably under that pretty new supercharger.
alaskarider is offline   Reply With Quote
Old 06-13-2014, 02:20 PM   #6
Simon1
5th Gear Member
 
Join Date: Dec 2006
Location: Redding, CA
Posts: 4,545
Default

I had this happen with my KB. The bottom of the intake manifold contacts the top of the cylinder head temp sensor. The wire gets pinched, the car thinks it's overheating, goes into limp mode and your screwed.

Two solutions:

Order new and different sensor, trim the top plastic so it doesn't contact. Problem solved.

Trim the sensor you have, repair wire.

I replaced the old one with complete new wire and sensor as the broken wire was nearly impossible to fix and be sure it was fixed correctly due to it being to close to the plastic.


The sensor is located in the front left side of the valley under the manifold.
Simon1 is offline   Reply With Quote
Old 06-13-2014, 05:36 PM   #7
moosestang
6th Gear Member
 
Join Date: Sep 2006
Location: Gainesville, FL
Posts: 11,278
Default

Quote:
Originally Posted by Simon1 View Post
I had this happen with my KB. The bottom of the intake manifold contacts the top of the cylinder head temp sensor. The wire gets pinched, the car thinks it's overheating, goes into limp mode and your screwed.

Two solutions:

Order new and different sensor, trim the top plastic so it doesn't contact. Problem solved.

Trim the sensor you have, repair wire.

I replaced the old one with complete new wire and sensor as the broken wire was nearly impossible to fix and be sure it was fixed correctly due to it being to close to the plastic.


The sensor is located in the front left side of the valley under the manifold.
That sucks!
moosestang is offline   Reply With Quote
Old 06-14-2014, 08:26 AM   #8
yourmyboybh1026
3rd Gear Member
Thread Starter
 
yourmyboybh1026's Avatar
 
Join Date: Apr 2009
Location: Clearwater FL
Posts: 597
Default

Quote:
Originally Posted by Simon1 View Post
I had this happen with my KB. The bottom of the intake manifold contacts the top of the cylinder head temp sensor. The wire gets pinched, the car thinks it's overheating, goes into limp mode and your screwed.

Two solutions:

Order new and different sensor, trim the top plastic so it doesn't contact. Problem solved.

Trim the sensor you have, repair wire.

I replaced the old one with complete new wire and sensor as the broken wire was nearly impossible to fix and be sure it was fixed correctly due to it being to close to the plastic.


The sensor is located in the front left side of the valley under the manifold.
Well, I'll try to take a look at that. I may just take my car to a shop since I have a lot of other problems I want to get fixed and I just don't have the time to do all of it.

One question though, would this problem cause my coolant temp gauge to stop working? Or is that something else?

When my car is warm, the temp gauge will work for a few seconds, but then just quit.
yourmyboybh1026 is offline   Reply With Quote
Old 06-15-2014, 04:10 PM   #9
Simon1
5th Gear Member
 
Join Date: Dec 2006
Location: Redding, CA
Posts: 4,545
Default

Don't know about that.

The gauges do have defaults they go to based on historical readings. Not exactly sure how it works, but the sensor will need to be fixed before you can really diagnose the gauge.
Simon1 is offline   Reply With Quote
Old 06-15-2014, 09:00 PM   #10
jz78817
4th Gear Member
 
jz78817's Avatar
 
Join Date: Jul 2011
Location: Michigan
Posts: 1,325
Default

Quote:
One question though, would this problem cause my coolant temp gauge to stop working? Or is that something else?
there may be more than one temperature sensor. Historically, the coolant temp sensor was placed near the thermostat, and any auxiliary sensors like in the cylinder head were there as "overheat" sensors.The heads are what run the hottest so a sensor there would sound the alarm that you're overheating before you ran the risk of engine damage.
jz78817 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
what are the odds - Service Engine Soon light lincolnshibuya V6 (1994-2004) Mustangs 9 12-08-2015 05:37 PM
Bad cylinder? Dathan V6 (1994-2004) Mustangs 4 10-05-2015 06:52 AM
I should've known better ChampInSD 5.0L GT S550 Tech 13 10-02-2015 05:55 AM
Please help! 10 Check engine codes mrtrodonet V6 (1994-2004) Mustangs 1 09-29-2015 12:13 PM
Clear codes on '94 sn95 BOB ROME 5.0L (1979-1995) Mustang 2 09-28-2015 12:10 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 03:57 PM.