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new motor wont crank......gingles' problem

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Old Jun 21, 2009 | 02:50 AM
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Default new motor wont crank......gingles' problem

ok.....so.....my new built motor wont crank....it just turns over....and over....and over.........timing is correct.......spark is going.....fuel injectors are firing.....all the grounds are hooked up......yada yada.....just start shooting me some suggestions and ill tell you whether or not ive done it........im going to check my crank angle sensor tomorrow......ive done almost everything imaginable....only thing i can think of is stock ecu is foobared.
Old Jun 21, 2009 | 02:57 AM
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I wouldn't say it's the ECU. You're getting spark and fuel, good signs that the brains are working. Ya check all the vac lines? I'm asuming yes since it's a simple and common problem. What piggy back unit ya running? Have you tried just the stock ECU? I know these are basic things, but sometimes ya forget the basics :-)
Old Jun 21, 2009 | 05:32 PM
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If i owned ur car. I would hook stock intake up.. and try starting it with stock injectors.


Wasint it you i was reading did a FPR and fuel rail?

check ur base fuel pressure as well..

stock tc FPR is like 47 i think...

WE NEED MORE INFO!
Old Jun 21, 2009 | 06:20 PM
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im almost certain its not a vaccuum line as it wont even try to crank......i tried the stock injectors and still nothing.......i have a descendent fuel rail with an aero FPR set at 43 psi.......it seems to me im getting to MUCH fuel.....i might can try the stock intake but i dont see what that will do as im running basically a cold air intake now(im not running it through my intercooler in other words) to try to get more air.
Old Jun 21, 2009 | 06:20 PM
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and i cant try just the stock ecu becuase i dont have the plug and play harness for my emanage ultimate
Old Jun 21, 2009 | 06:25 PM
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ahh..

OK well it may be a messed up emanage or.. i think it may have something to do with fuel pressure.. try jacking up the fuel pressure to say 50 psi.. seee wha happenes and report back!
Old Jun 21, 2009 | 06:27 PM
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i tried from 60psi down to 35psi with the same results......im going to check the continuity on my injectors here in a second
Old Jun 21, 2009 | 06:30 PM
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you may unplug the harness from you ultimate and it should be the same as running the stock ecu.. but it has been wire that way right before the engine build?
Old Jun 21, 2009 | 06:31 PM
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they all have continuity and are pulling 12.6 ohms
Old Jun 21, 2009 | 06:32 PM
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try new plugs toooo! goto oem plugs
Old Jun 21, 2009 | 06:32 PM
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yea the emanage has been the same since day one.....and you cant just uplug the emanage as some of the wires require the emanage to continute the circuit......i was thinking of trying to jump the wires to where it would be like stock but my god thats alot of work haha.......im going to try the stock fuel rail with stock injectors here in a bit with 45 psi of fuel pressure
Old Jun 21, 2009 | 06:33 PM
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i am running oem plugs right now elevation....haha
Old Jun 21, 2009 | 06:43 PM
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try new plugs.. urs a probably fouled at this point..
And u did swap mafs right?

when i had a bad maf my car started and stalled..
Old Jun 21, 2009 | 06:59 PM
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first of all did u check ur compression i know its a long shot but you say you are getting spark and fuel the only thing left is compression....
Old Jun 21, 2009 | 07:13 PM
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Originally Posted by MrBurrito
first of all did u check ur compression i know its a long shot but you say you are getting spark and fuel the only thing left is compression....

im glad u said it!

Thats what one of my quess;s was but i didint wanna curse him!
Old Jun 21, 2009 | 07:25 PM
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some one had too haha yeah but i hope that isn't it either but its still good to check
Old Jun 21, 2009 | 07:34 PM
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WE KNOW YOUR THERE!

Hey do you have my cell number? If so pm me! Maybe i could be some more assitance!
Old Jun 21, 2009 | 09:45 PM
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hey sorry.....nah i havent tried compression but am going to as soon as it cools down....ill try new plugs as well.....i dont see how its compression because its just built....but since im already cursed what the hell lol........what is your number elevation?......also its not the maf because my car wont even crank....it just turns over......
Old Jun 21, 2009 | 10:08 PM
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compression is 145 on all 4 cylinders......keep in mind there are no miles on this motor.
Old Jun 21, 2009 | 11:09 PM
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compression is ok.

I hate to say it but i bet this turns out to be a simple stupid problem.



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