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New motor won't start by itself!

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Old Feb 17, 2008 | 08:08 PM
  #1  
rollingsband1's Avatar
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From: warfield
New motor won't start by itself!

alright i finally cranked over the motor to start it.. it cranks and nothing, so i had a buddy spray some fluid in it while cranking and it fired right up, then ran for ohh i dunno 5-10 secs then died.. basically it starts fine while being sprayed but wont start on its own..

makes me think its the fuel system.. but i have plenty of fuel and the injectors are working cause i flooded it once today.. so wtf can it be??

i know my harness was cut before i bought my car and there all been sliced back together could something be wrong in my harness i should look into?

any help guys or ideas?
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Old Feb 17, 2008 | 08:11 PM
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From: warfield
plus it sounds like its running on one rotor after a few secs then.. i can keep it running after i start it with the fluid now but on one rotor.. wtf?? i think my wiring is a miss.
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Old Feb 17, 2008 | 08:14 PM
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Are your spark plugs new? How do they look?
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Old Feb 17, 2008 | 08:15 PM
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From: warfield
yes sir, brand new #9's.. i have a spare new set aswell i was going to change in after my first oil change.
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Old Feb 17, 2008 | 08:18 PM
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Originally Posted by rollingsband1
yes sir, brand new #9's.. i have a spare new set aswell i was going to change in after my first oil change.
Try this:

1. Remove current spark plugs
2. Remove EGI fuse
3. Crank motor for 10-15 seconds
4. Clean area around spark plug holes and install spare set
5. Re-install EGI fuse
6. Start the car

See if it fires on the first start after that.
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Old Feb 17, 2008 | 08:21 PM
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From: warfield
will do! do you think my wiring could be messed up? since it is only goin on one rotor right now when i start it and the fluid goes away?
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Old Feb 17, 2008 | 08:22 PM
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Originally Posted by rollingsband1
will do! do you think my wiring could be messed up? since it is only goin on one rotor right now when i start it and the fluid goes away?
It's not hard to foul these plugs, especially on the first crank of a new/rebuild motor. Check the plugs when you pull them out and see if they are dripping with fuel. I would try this first to see if it's just fouled plugs.
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Old Feb 17, 2008 | 08:25 PM
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From: warfield
i hope ur right! im just trying to think of anything else it could be in case my plugs arnt the problem.. so i dont have to keep posting back and fourth ya know. that a way i can have 2-3 steps to try before i bug you guys more
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Old Feb 17, 2008 | 08:43 PM
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Is the gas fresh? Old or flat gasoline will have lost some of its volatility (as the Aromatics will have already flashed off).

Simply put, this results in gas that does not readily vaporize , making it more difficult to start and easier to flood. Winter grade gasoline formulations are preferred for ease of starting (but are less desireable for evaporative emissions).

Also-- Do not attach a battery charger while trying to start as the ripple from the rectifier can confuse the ECU. Ask me how I know....

Last edited by Speed of light; Feb 17, 2008 at 08:44 PM. Reason: spelling
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Old Feb 17, 2008 | 08:47 PM
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From: warfield
ok so no battery charger, and add some fresh 93 octane in my tank.. my fuel is about a year old and winter grade.. and there is only a 1/4 tank in it. i should prob add 2-3 gallons of fresh and try that also?
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Old Feb 17, 2008 | 08:48 PM
  #11  
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From: warfield
ohh and change my plugs. then ill prob be alright!

i want this beast to run again! on both rotors..

it sounds incredible when it was runnin on the starting fluid! very mean sounding!! i can tell the ports make the sound change a lil
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Old Nov 11, 2012 | 03:05 AM
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is it safe to wire a switch to the egi if the car has flooding issues?
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Old Nov 11, 2012 | 10:20 AM
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Maks sure CAS is position right and connectors are right
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Old Nov 11, 2012 | 12:39 PM
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sounds like a faulty primary injector clip or stuck closed injector.

how long did the injectors sit in the rails while you were building the engine? the fuel can dry out and stick the injectors.
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Old Nov 11, 2012 | 03:21 PM
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Originally Posted by RX7_FD3S_JDM
is it safe to wire a switch to the egi if the car has flooding issues?
I'd recommend fixing the flooding issues rather than looking for a work around.

Guys, this thread is from 2008 and the OP was banned years ago, just FYI.
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Old Nov 12, 2012 | 12:05 AM
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^lol
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