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Old 05-21-2003, 10:45 PM   #1
sick1.8t
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Unhappy so my new motor wont start....

i just installed a rebuilt 1.8 in my '93 impreza.
the started turns the motor, but it wont fire up, and i need the car running within 2 days (friday afternoon).
so possible problems are....

the fuel pump is a wrx pump, thats the only thing i didnt put back to stock when the new motor went in. this would flow more fuel, but i figured the car would at least start, eventually become rich at idle, and then bog out and stall. you can smell gas after trying to start it for 5-10 secs, but this seemed normal to me.

i am using the spark plugs from my old motor, which worked fine before, and would rather not but new ones because i'm getting a different (colder) set in a few weeks, and dont want to waste the money. if they were working somewhat, the motor should at least sputter right?

i put the heads/timing belt on my self. the timing of the crank and heads could be off i guess, but not much, i tried my best to keep them all lined up. again, if it were off a little, wouldnt it still at least try to start, and then die (just before idle maybe)?

any ideas would be great.
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Old 05-22-2003, 12:04 AM   #2
COwannago
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Just curious as I doubt this is your problem, how did you get the WRX fuel pump to work in the L since the connector is different? Did you buy it somewhere?

Nick C.
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Old 05-22-2003, 12:22 AM   #3
8Complex

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Check to see if you're getting spark. If yes and it won't fire, chances are your timing is off. Make sure to line up all the marks... it's a fairly complicated process in the SOHC motors, from my experience with the RS's.
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Old 05-22-2003, 03:30 AM   #4
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Quote:
Originally posted by 8Complex
Check to see if you're getting spark. If yes and it won't fire, chances are your timing is off. Make sure to line up all the marks... it's a fairly complicated process in the SOHC motors, from my experience with the RS's.
Yup. My guess is you're off by a tooth or two.
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Old 05-22-2003, 10:22 AM   #5
sick1.8t
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Quote:
how did you get the WRX fuel pump to work in the L since the connector is different?
i just dremeled out the wrx pump connector, then screwed down the old L nut and bolt fittings

i'll go check for spark....
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Old 05-22-2003, 02:06 PM   #6
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Make sure when you turn your key to the on position, that you can hear the fuel pump turn on.

It could be something as simple as a fuse.
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Old 05-22-2003, 03:11 PM   #7
sick1.8t
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i didnt check for the pump, but there is spark.
i'm pretty sure the timing is correct, but would it not even try to start if was off a little?
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Old 05-22-2003, 11:50 PM   #8
m750
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people are making suggestions, but you don't want to take them, you know too much. If you know so much, your car would be running.
AO
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Old 05-23-2003, 10:48 AM   #9
sick1.8t
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actually, the only thing i havent checked for is the timing.
i can't hear the pump, but i also havent had a second person around to turn the key while i listen for it.
i havent checked the timing yet because it is such a huge p.i.t.a. to do it, and i would like to know if its a smaller problem first.
i'm asking so many questions because i actually dont know the answers.
thanks for the suggestions so far, but no luck.

ps, anyone know which fuse goes to the fuel pump?
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Old 05-23-2003, 11:39 AM   #10
STR8OUT
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Ask someone to turn the key to on and listen with your ear over the fuel tank. You will hear a little buzzing sound when the key hits on. If you dont then thats your problem.

As for fuses. That should be in the owners manual. Or you could always browse the fuse box and check each one. Make sure you also check the big fuse box in the engine bay if you have one of those...
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Old 05-24-2003, 06:54 AM   #11
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If the WRX fuel pump is as loud as my 2.2's, then it should be very easy to distinguish. Just have all music turned off, turn the key all the way to on (but don't crank), and listen for a whine coming from the trunk followed by a electronic click coming from the switch in the dash when it finishes priming. If you do not hear anything, then it could be a fuse. Check the left lower side of your steering collum for a ?change tray?, pop it out completely, and walla...you should see the main fuses. Break out your owners manual and check to see if the fuel pump fuse is blown.


Mick
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Old 05-26-2003, 01:51 AM   #12
sick1.8t
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bump to get my motor running
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Old 05-29-2003, 10:05 AM   #13
sick1.8t
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damn, subaru wants $290 for a timing belt replacement...

I also had my mechanic come by today and look at it. He found out that there are two different subaru shop manuals for the '93. He said probably because of some mid year change in them. I do remember people saying that there is some differences between the '93 and '94. If these changes were mid year, then the new motor might have the changes, but the ecu from the old motor might not have the changes.

Anyone think this could be it?

He says it might allso be a faulty cam sensor/MAF sensor/etc. sensor....

Last edited by sick1.8t; 06-04-2003 at 12:23 PM.
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Old 08-27-2003, 10:13 PM   #14
sick1.8t
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so i figured out:
bad ignition wire to starter,
bad wrx fuel pump,
bad timing belt alignment (lined up wrong marks)

damn
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