Question about Honda Civic

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93 Honda civic vtec auto, does the coolant temperature sensor have a wire that goes to the coolant temperature switch sensor? one comes from the ecm. I assume the other goes somewhere?

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  • Honda Master
  • 20,706 Answers

Here is better help
http://forum.pgmfi.org/index.php

first off most cars, old, have 2 or three coolant sensor;.
1 for the dash gauge (dedicate) usually 1 pin sensor.
then
2: a two pin sensor, this is called (back then) CTS, coolant temp sensor, (this is the main ECU sensor ,if bad , ecu goes to horrid limphome mode. the ecu sends 5vdc to it and uses current flow
(measured) to read water temps, (and scale injections!)
3: an optional, A/C overheat sensor.

the drawings are all at
alldata.com any time you want too look

Posted on Oct 17, 2013

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Posted on Jan 02, 2017

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TheAsian
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SOURCE: Connector for Speed Sensor on1996 Honda Accord Auto Trans.

If you are talking about just plugging into the speed sensor yes. A VTEC and NON-VTEC are one and the same.

Posted on Dec 13, 2008

  • 184 Answers

SOURCE: 99 honda odyssey coolant fans turn too late

You might need a new ECT - engine coolant temperature sensor. If it's not reading the correct coolant temperature it's not going to tell the fan to turn on when it should.

Is the check engine light illuminated? I'd bet the ECT needs replacement.

Posted on Dec 17, 2008

  • 202 Answers

SOURCE: Temperature passing cool

did you changed the themostat ? sound like you have a bad themostat. good luck.

Posted on Aug 06, 2009

  • 22 Answers

SOURCE: honda civic vtec 1995 - 1998 engine wiring diagram

Go to your local library and ask the Librarian to get you on-line to the Automotive Repair Reference Center, and then to the EBSCO database...you will find all of your wiring diagrams there.

Posted on Oct 07, 2009

  • 57 Answers

SOURCE: 93 xj40 wont start has

Really silly questions now!

If it is an auto box! have you got in any gear other than Park??
Have you checked the immobiliser????
Crank angle sensor is ok?????

I've experienced problems with Jag's in the past! this sounds crazy but check that the coolant temp sender is not worn out and shorting on the bonnet liner! sounds crazy but this has hapened before! shorted out the entire ignition system!

Posted on Oct 29, 2009

Testimonial: "am trying to find out where the immobiliser is can you help please, auto box is in park, crank angle sensor is new,will check coolant sensor and advis"

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My 05 honda civic coupe the radiator fan not working.i changed thermostat,fan switch,relay good fan. still not working.i dont know what to do.but the motor fan is working both fan are good.


there are 2 fuses for the fan
also check the coolant temperature SENSOR ( not sender ) as that is what reports temperature to the ECM to get the fan turned on through a relay

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93 civic vtec I finally got the radiator fan to kick on a couple times. it only stayed on for 10 seconds both times. could there be air in the area of the sensor that kicks the fan on? I let it run for...


to check if air in system, let cool down and remove radiator / coolant reservoir cap and systematically squeeze coolant hoses including heater hoses, you should see bubbles in reservoir as you squeeze hoses, continue until no more bubbles, then top up coolant to required level.

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93 civic vtec auto. new thermostat, new cts, coolant temp. sending unit, coolant temp. switch, relay. still radiator fan not working. condenser fan is now working. antifreeze at the radiator is about 195...


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Will a cylinder head from a 1996 honda civc 1.5l non vtec work correctly on a 93 honda civic 1.5l non vtec


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Dec 14, 2009 | 1993 Honda Civic 4 Door

1 Answer

I have a Honda 2004 CRV - the repair ( OBD II) code is P2647 - what does that mean?


P2647 VTEC Oil Pressure Switch Circuit High Voltage - With Automatic Transmission Basicallly the sensor has gone bad or an oil passage has become blocked.

**. Locate the Variable Timing Electronic Control (VTEC) pressure switch on the end of the cylinder head. Honda has had problems with the VTEC oil pressure switch, there is an updated part number for the vehicle (37250-PNE-G01). On this vehicle the VTEC oil pressure switch can fail at any RPM.
2. The VTEC oil switch is normally closed, and grounds the reference voltage from the Engine Control Module (ECM) on the Blue/Black (BLU/BLK) wire. If the code sets at idle - 2500 RPM - and the Brown/Yellow wire has a good ground, then suspect a faulty VTEC oil pressure switch.
3. At approximately 2500-4000 RPM and when driving the vehicle, the VTEC system should turn on. To turn on the system, the ECM energizes the VTEC Solenoid valve and it allows oil pressure into the intake valve rocker arms, the oil pressure opens the VTEC oil pressure switch so the Engine Control Module (ECM) can verify that the VTEC did turn on correctly.
4. The code will set at idle to 2500 RPM if the reference voltage is not grounded. The code will set above 2500-4000 RPM if the VTEC oil switch does not open.
5. If the code sets at 2500-4000 RPM or higher, the problem can be a low oil level or pressure, or a malfunction in the VTEC assembly.
Potential Causes: Low Engine Oil
Plugged Oil Passage
Insufficient Oil Pressure
Plugged Oil Screen
Insufficient Oil Volume
Malfunctioning VTEC Oil Pressure Switch
Defective VTEC Solenoid

Jul 13, 2009 | 2004 Honda CR-V

1 Answer

1989 Honda Civic hard starting and dies for no reason. Cooling fans not working. Trouble codes are #6 coolant, #10 air intake temp, #16 fuel injector. Can anyone lead me to a solution for these problems?


6
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 97-98 85-91 93-97 95-98 85-98 ECT Sensor (Engine Coolant Temperature)
defective circuit or unplugged / defective sensor
10
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 97-98 85-91 93-97 95-98 85-98 IAT Sensor (Intake Air Temperature)
defective circuit or unplugged / defective sensor
16
Accord Civic CRV CRX Del Sol Odyssey Prelude
90-95 88-95 n/a 88-91 93-95 95 88-95 Fuel Injector System
defective circuit or unplugged / defective fuel injector

check your wiring for dirty connections or broken wires, you may have wires that are rubbed through or connectors that are not making full contact. you will need an ohm meter and check wires for continuity. a wiring diagram will be needed.

May 15, 2009 | 1989 Honda Civic

1 Answer

2001 honda civic obd code


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Mar 02, 2009 | 2001 Honda Civic

1 Answer

1996 honda


you know the fans are ok most honda have a two terminal switch at the right corner bottom of tthe radiator if you put a jumper across this terminal the fans should kick in, this indicates that the coolant temp sensor is bad replace it, secondly some honda have a temp sensor located right on the thermostat housing and you can disconnect the wire and just ground the wire and the fan should come on so replace the temp switch last thing to check for is coolant leak around the readiator seem i mean the edges the radiator being fiber glass may have hair crack through which antifreeZe keeps leaking out the only suggestion for honda is to replace the radiator.

Oct 20, 2008 | 1993 Honda Civic 4 Door

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