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Old 03-10-2014, 10:53 PM   #1
Nelson Canham
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Join Date: Mar 2014
Default 1993 Subaru Impreza will not start

My Car just stopped on me and will not start.
I replaced the Fuel Pump relay, Fuel Pump and the cam sensor but it still will not start. There are two wires to plug in under dash to get a flash code and it
flasher a 13. So calling the dealership they told me the Cam Sensor. So now what do I do? Let me know,
Nelson
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Old 03-11-2014, 12:34 AM   #2
ClemRoo
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ask the dealer?
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Old 03-11-2014, 05:36 AM   #3
Loyale93
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Sounds like the cam sensor. If that's what the dealer said, do that. They know more than we do.
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Old 03-13-2014, 10:20 PM   #4
Nelson Canham
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Well, the Cam Sensor didn't work. And now there is no Spark.
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Old 03-13-2014, 10:24 PM   #5
SomDong
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Does it try and start?

If a camshaft sensor was bad, it would fire, but either not run, or run poorly.

If a crankshaft sensor was bad, it wouldn't start at all. There is ways to check them. You can use a multimeter and check the resistance of the inductive coil inside, I'm not sure of the spec though.
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Old 03-15-2014, 08:49 PM   #6
Nelson Canham
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Well I have Replaced the Fuel Pump,Fuel Pump relay,Cam Shaft Sensor,Crank Angle Sensor and a ECM and my car still will not start. Does anyone have an Idea what I need to look for now.Let me Know
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Old 03-15-2014, 11:59 PM   #7
Shiftace420
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Please stop throwing expensive parts at an engine in hopes to diagnose the problem!

You must first find the problem then buy the part.

Are you positive its a flashing "13"? Also are you positive that the cam sensor is the resulting code? Sometimes they will just give you false info because the service tech or writer does not really know or has bad info. Remember they are there to sell you service, not provide you with a verbal service manual and most wont really do the research unless they have to.

Finally, I hesitantly throw out the suggestion of the MAF sensor. Please don't rush out and buy one but maybe the code points to that. It could be very dirty or just bad. That will cause an engine not to run. Do you have a friend you could borrow the top section of the airbox of similar year to try?
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Old 03-16-2014, 12:20 AM   #8
i_c_the_light
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Quote:
Originally Posted by Shiftace420 View Post
Please stop throwing expensive parts at an engine in hopes to diagnose the problem!

You must first find the problem then buy the part.

Are you positive its a flashing "13"? Also are you positive that the cam sensor is the resulting code? Sometimes they will just give you false info because the service tech or writer does not really know or has bad info. Remember they are there to sell you service, not provide you with a verbal service manual and most wont really do the research unless they have to.

Finally, I hesitantly throw out the suggestion of the MAF sensor. Please don't rush out and buy one but maybe the code points to that. It could be very dirty or just bad. That will cause an engine not to run. Do you have a friend you could borrow the top section of the airbox of similar year to try?
13 is probably an old code that wasn't cleared.
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Old 03-16-2014, 12:28 AM   #9
i_c_the_light
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Pull off one of the belt covers and check that the timing belt isn't broken.
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Old 03-16-2014, 12:32 AM   #10
Shiftace420
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Quote:
Originally Posted by i_c_the_light View Post
13 is probably an old code that wasn't cleared.
Agreed,

You should probably clear codes in history before trying to start the car. THEN read the code. If it's a problem it will re trip the code every time you reset it.

Just because you verify a code does not mean that its the sensor itself. Example: O2 sensor code. Sensor good. Wire connected and not comprised. Scanned with oscilloscope. Found normal pattern for 02 sensor. Checked pin at ECU and found no voltage drop in the signal wire.
--The problem ended up being a single wire O2 system with no sensor preheat wires. The ground was supplied from the rusted exhaust tubing.
--The fix: Simple wire from chassis ground near ecu to the 02 sensor base.

The cost for the diag was less then an hour. The cost to fix was 6' of wire and not a single part bought. Always check supporting wiring ect not just throw a sensor. Every sensor can be checked, with the proper equipment.
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Old 03-16-2014, 01:33 AM   #11
Shiftace420
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2002 Impreza WRX
Silver

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Quote:
Originally Posted by i_c_the_light View Post
Pull off one of the belt covers and check that the timing belt isn't broken.
What he said.
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