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Old 02-24-2007, 02:11 PM
alfaboy85 alfaboy85 is offline
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non start issue

okay so i've checked my grounds and my battery has been hooked up to a charger and I still dont get a spark. Mind you before i took the engine and trans out to do the clutch the car ran beautifully. I dont know what I'm missing, any ideas?
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Old 02-24-2007, 02:22 PM
ghnl ghnl is offline
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Look here: Spider L-Jetronic diagnosis

Also check your coil (How to check the coil) and cap/rotor/wires.
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Last edited by ghnl; 02-24-2007 at 05:04 PM.
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Old 02-24-2007, 02:40 PM
alfaboy85 alfaboy85 is offline
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Quote:
Originally Posted by ghnl View Post
sorry search the forum for that?
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Old 02-24-2007, 03:13 PM
ghnl ghnl is offline
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The underlined words are links. Move the mouse pointer over them and click to go to a new page.
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L-jetronic Spider diagnosis (1982-1989)
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Old 02-24-2007, 03:29 PM
alfaboy85 alfaboy85 is offline
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yeah but not the first, anyways i can't find my multi meter so i pulled the coil plug from the dizzy and started it and got no spark out of that wire which leads me to assume that i possibly have a bad coil. is this a fair assumption?
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Old 02-24-2007, 03:32 PM
Stan Murray Stan Murray is offline
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I bet you have the two flywheel sensors reversed.

Swap them and see what happens.

Did you take the flywheel off the engine?
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Old 02-24-2007, 03:38 PM
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Crank sensors reversed, not hooked up or failed would be on the list for sure, good call Stan.


On the disconnecting the coil to dizzy lead and trying to get it to throw fire to ground?

You might not want to do that as there's a pretty fair probability it'll do something evil to the ICU or ECU, then it really won't start.
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Old 02-24-2007, 03:47 PM
alfaboy85 alfaboy85 is offline
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yeah i threw it to a ground, and i put the sensors in order of the length of their cables. and yes i did take the fly off but i put it back on according to the way you guys told me.
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Old 02-24-2007, 05:10 PM
ghnl ghnl is offline
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I fixed the first link. It was supposed to point here.

IF the flywheel is mi-installed and the flywheel sensors are functional, you'd still see a spark - just not timed correctly. Same if the sensors are swapped.

If one (or both) sensors are faulty, the ECU doesn't know the engine is turning &/or the crankshaft position - thus no spark. Also, the ECU requires about 10.3 volts minimum to wake up and go to work. If the voltage drops below this threshold during cranking (when the starter motor is drawing a lot of current), no spark signal.

Check the info in the (correct) link above.
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Old 02-24-2007, 06:28 PM
alfaboy85 alfaboy85 is offline
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okay so according to a voltmeter i have hooked into the stereo the battery is pumping out around 12 to 13 volts. Also when i took one of the sensors out it looked like something had come loose and on the clutch and almost took a chunk out of the magnet. Now this issue had been present then before i removed the engine to change the clutch and the ran fine then so why would i be having problems with the sensor now that its been sitting? I'll post pics of the sensor when i get home from work tonight to show you guys exactly what I mean. This seems to be pointing toward possibly and hopefully a bad coil, which i cant check properly until i get a multimeter. But as I said I'll get more detailed pics up tonight.
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Old 02-24-2007, 08:04 PM
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Quote:
Originally Posted by alfaboy85 View Post
okay so according to a voltmeter i have hooked into the stereo the battery is pumping out around 12 to 13 volts.
But what is it pushing during actual cranking?

If it drops below what Eric stated, then it ain't gonna go vroom no matter what the just sitting there voltage is. :shrug:
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Old 02-24-2007, 10:00 PM
alfaboy85 alfaboy85 is offline
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yeah i'm gonna replace the messed up magnet sensor and then come back and see what happens, i'll keep you guys informed lol
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Old 02-25-2007, 09:45 AM
ghnl ghnl is offline
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Did you re-install ALL the bell housing to engine bolts/studs?

Interesting reading...
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L-jetronic Spider diagnosis (1982-1989)
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Old 02-25-2007, 03:01 PM
alfaboy85 alfaboy85 is offline
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yeah i did, here a pic of the sensor that is a little gnarled, i also figured out i had the sensors mixed up but that didn't help. sorry for the blurry pic but its hard to get it in focus under that car. I think it need to be swapped out, i tried to test it but the multimeter just isn't workin for me
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Old 02-25-2007, 03:30 PM
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I see the main ground strap

Right there, just below your thumb in the pic.

BTW, I couldn be wrong, but it looks like the clutch slave is showing a bit of wet. Is it a leaker that you're aware of?
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