Help !!!! Subaru Impreza

[Trout]

The vehicle is a 1994 Subaru Impreza

Symtoms:
1. Check Engine Light is always on.

2. Both radiator fans constantly running.

3. Hard as heck to start.

4. Only starts when gas pedal is to the floor and
man, it's a rough start.

Once started and warmed - runs perfectly.
Someone said to replace thermosensor.

Any help ?

 

[mulder]

Very likely a bad coolant temperature sensor. You should pull the code
to see what it is, info here- http://www.troublecodes.net/Subaru/
The sensor is inexpensive and not difficult to replace.

 

[Edward Hayes]

AutoZone will pull the code for you then check back to this thread to find
out what is the problem.

 

[mulder]

He has a 94 which is OBDI. Autozone can only pull codes for 96-up OBDII
vehicles.

 

[remcow]

Very likely a bad coolant temperature sensor. You should pull the code
to see what it is, info here- http://www.troublecodes.net/Subaru/
The sensor is inexpensive and not difficult to replace.

Agent Mulder is totally on point -- I had to do the same thing recently to
my daughters car for the exact same starting problems you have.

When you do replace the sensor, be sure to reset the computer because
initially it will be hard to start - even after the replacement has been
done. I initially thought that I had made a mistake replacing the sensor but
after resetting the computer the car started just fine again.

Remco

 

[hippo]

He has a 94 which is OBDI. Autozone can only pull codes for 96-up OBDII
vehicles.

Code for the temp sensor is 21. Trout - do you need a proc to self-diag
the codes? If so, welcome to E me without the nospam. I'm assuming it's
the same as on a 91 Legacy unless someone else tells me that's wrong!
Cheers

 

[Remco]

Here are some links for reading the trouble code and resetting the
computer:

http://www.troublecodes.net/Subaru/
http://www.mudd90.freeserve.co.uk/technicalstuff_diy1.htm

Remco

 

[Trout]

(e-mail address removed)
Remco

I want to thank all of you for helping me with my
thermo sensor problem.

I want to give a BIG thanks to REMCO for sending
me JPG photos and talking me through the process
to include leaving the battery cable disconnected
for a period of time to reset the ECM.

REMCO, for as long as I have two kidneys,
you will stay alive.

Thanks