2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Fresh rebuild cranking but not firing up

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Old Feb 20, 2005 | 01:07 AM
  #1  
alwayssideways's Avatar
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Nurse I need 1300cc's NOW
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From: Hartford
Fresh rebuild cranking but not firing up

i just got my engine back in the car(87 t2). But here are a few problems. I have spark, i have fuel going into the rail. but my spark plugs are bone dry. Im trying to see if i missed a connection somewhere. but all the plug to the injectors are on. The maf and Cas are on . Im wondering if i forgot to plug in the TPS. but i dont think so. Also there is a (if i remember correctly) 6 pin harness right near my ecu its a white harness. I cant remeber if that goes to anything . are there suppose to be some unplugged harnesses in the cabin near the ecu ??? also are the trailing coils suppose to fire during start up ???? i think i might have not checked it properly but it seemed like i didnt get any spark . any hel
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Old Feb 20, 2005 | 01:12 AM
  #2  
Bob_The_Normal's Avatar
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From: SoCal
There aren't supposed to be any unplugged harnesses that I know of man.

If you have 1 green and 1 white harness plugs not plugged in that would probably be your problem... they go up near where the harness enters the cabin through the firewall.

But I wouldn't think so because you have spark... check the timing? There are a ton of things that can keep it from starting... does it start to turn over at all? Act flooded? Make a stumbling sound?

Anything more than "it won't start" is helpful in diagnosing things.

You could also have a massive vaccum leak, it would cause a no start.

--Gary
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Old Feb 20, 2005 | 01:24 AM
  #3  
alwayssideways's Avatar
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Nurse I need 1300cc's NOW
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From: Hartford
well the plugs are bone dry . and i do have 2 harnesses that arent plugged in. One is white and i can remeber the color of the other. when i crank it over. it sounds like any other rotary. Only it doesnt stumble. I doubt it flooded. It basically sounds, and looks like im getting spark , air, and no fuel .. im gonna go over it again in the morning im just looking for ideas on where to go and look

Edit. I also have the ecu completly plugged in
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Old Feb 20, 2005 | 05:03 AM
  #4  
Bob_The_Normal's Avatar
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From: SoCal
Those two wouldn't plug into the ECU, they would plug into a place up near the firewall... it's very hard to get to them unless you have small hands and arms... I have to sit upside down in the seat and cram my head into the corner just to SEE a corner of the plugs... just to see which one is green and which one is white... then I jam my arm up in there and try to plug them in. I've gotten ok at it though.

If those two are unplugged they're probably your problem. Check that out?

--Gary
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Old Feb 21, 2005 | 11:28 AM
  #5  
jhammons01's Avatar
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From: Irvine Ca.
Those two plugs in the cabin go where Gary said. I remove the blower motor that is sitting right in the way, that way my fat hands fit
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