Over Heating problem 2.0l (DTC P1289) - Focaljet

**samdaman304** · 08-05-2008, 06:26 AM

I have a overheating problem with my 2.0l focus 2001. the radiator fans come on
after 2 mins of starting the car. The engine management light comes on and the
diagnostic trouble code is p1289 (Cylinder Head Temp Sensor Out Of Self Test Range) does any one know why it overheats? could it be my waterpump or CHT sensor? or a blockage? oh yeah my car hasnt been running for a year........

**samdaman304** · 08-07-2008, 01:06 PM

i hav jus fit a new thermostat and its still overheating!????????????

the trouble code is; "cylinder head temp s cir hi in" ?????????????

**GapBoyPCS** · 08-07-2008, 01:53 PM

Which 2.0L engine do you have?

**fbmx24** · 08-07-2008, 02:40 PM

Well according to the Ford service manual these could be the casuses..

Cylinder Head Temperature (CHT) Sensor Circuit High Input
Open circuit in CHT harness. (shorted circuit for PCM strategies released prior to 1999).
Damaged CHT sensor.
Improper harness connection.
Damaged PCM.

We dont really sell to many of the CHT but check the wiring going to it and if that fine the sensor is about $19, part number YS4Z6G004CC.

**samdaman304** · 08-08-2008, 08:07 PM

cheers nice 1, ill hav a look.

**samdaman304** · 08-11-2008, 06:16 AM

my engine is the 2.0l black top 2001 zetec.

think im gonna check the water pump now.....

still dont know why the fans start b4 the engine is even warm?

but the engine does only take 3 mins to get normal working temperature. which it shud not do

08-05-2008, 06:26 AM	#1
samdaman304 Rookie Join Date: Aug 2008 Posts: 6	Over Heating problem 2.0l (DTC P1289) I have a overheating problem with my 2.0l focus 2001. the radiator fans come on after 2 mins of starting the car. The engine management light comes on and the diagnostic trouble code is p1289 (Cylinder Head Temp Sensor Out Of Self Test Range) does any one know why it overheats? could it be my waterpump or CHT sensor? or a blockage? oh yeah my car hasnt been running for a year........

08-07-2008, 01:06 PM	#2
samdaman304 Rookie Join Date: Aug 2008 Posts: 6	Re: Over Heating problem 2.0l (DTC P1289) i hav jus fit a new thermostat and its still overheating!???????????? the trouble code is; "cylinder head temp s cir hi in" ?????????????

08-07-2008, 01:53 PM	#3
GapBoyPCS Moderator Join Date: Oct 2001 Location: Waterloo/Toronto/GTA, Ontario, Canada Posts: 9,051	Re: Over Heating problem 2.0l (DTC P1289) Which 2.0L engine do you have? __________________ Richard - 2002 ZTS \| Sangria Red \| 392,000+ km...Be Bold, Stay Focused 24-7 SVTOA Redline Rendezvous On Track at Mosport \| OFOC - Ontario Focus Owners Club \| SVTOA-Toronto [FJ] focaljet - Forum Guidelines - Welcome to the Jet - Team Canada - FJ Store - Sponsors - SEARCH

08-07-2008, 02:40 PM	#4
fbmx24 TEAM Member Join Date: Aug 2006 Location: socal Posts: 184	Re: Over Heating problem 2.0l (DTC P1289) Well according to the Ford service manual these could be the casuses.. Cylinder Head Temperature (CHT) Sensor Circuit High Input Open circuit in CHT harness. (shorted circuit for PCM strategies released prior to 1999). Damaged CHT sensor. Improper harness connection. Damaged PCM. We dont really sell to many of the CHT but check the wiring going to it and if that fine the sensor is about $19, part number YS4Z6G004CC. __________________ 2003 2.3l zx3 w/ Bilstein coilovers, SVT rear swaybar, k&n intake, and Focus Sport exhaust.

08-08-2008, 08:07 PM	#5
samdaman304 Rookie Join Date: Aug 2008 Posts: 6	Re: Over Heating problem 2.0l (DTC P1289) cheers nice 1, ill hav a look.

08-11-2008, 06:16 AM	#6
samdaman304 Rookie Join Date: Aug 2008 Posts: 6	Re: Over Heating problem 2.0l (DTC P1289) my engine is the 2.0l black top 2001 zetec. think im gonna check the water pump now..... still dont know why the fans start b4 the engine is even warm? but the engine does only take 3 mins to get normal working temperature. which it shud not do

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