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Old Jun 28, 2008 | 11:39 AM
  #1  
94dxcivic's Avatar
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Default Need Help ASAP

i have a 94 civic dx.Im having trouble on cold start-up..just replaced fuel pump,fuel filter,wires and plugs.I can hear the fuel pump and relay cut on but when starting it sounds like the engine is flooded and just turns over...Any suggestions on what to check
 
Old Jun 28, 2008 | 11:47 AM
  #2  
RonJ's Avatar
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Default RE: Need Help ASAP

First, is the CEL ON (see link below)? If so, retrieve the trouble code.

If the CEL works and is not ON, then:

1) Check for spark

2) Check the fast idle valve (remove and clean with carburetor cleaner if it's not functioning properly):

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Old Jun 28, 2008 | 11:52 AM
  #3  
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Default RE: Need Help ASAP

so this could be causing the problem that sounds like its getting to much gas?
 
Old Jun 28, 2008 | 11:57 AM
  #4  
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Default RE: Need Help ASAP

Is the CEL ON in the gauge assembly?

Normally, when you turn the key to ON, the CEL turns ON for 2 seconds then turns OFF. If the light remains ON , then a trouble code is stored in the ECU. If so, retrieve the code as described in the link found in my signature.
 
Old Jun 28, 2008 | 12:00 PM
  #5  
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Default RE: Need Help ASAP

there is no check engine light on..just for 2 sec then off
 
Old Jun 28, 2008 | 12:02 PM
  #6  
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Default RE: Need Help ASAP

Good. The next step is to check for spark at all four plugs when the engine will not start. Do you know how to do this?
 
Old Jun 28, 2008 | 12:05 PM
  #7  
94dxcivic's Avatar
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Default RE: Need Help ASAP

do you just take a plug out and put it in the plug boot and check spark right? if so i just replace plugs today and wires last week
 
Old Jun 28, 2008 | 12:12 PM
  #8  
RonJ's Avatar
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Default RE: Need Help ASAP

Pretty much. Test spark at each plug as follows:

When engine won't start, remove a plug wire and insert a spare spark plug into the end. Ground the threads of the spark plug at the end of the wire on a convenient metallic part of the engine and have a buddy crank the engine. If you see bright blue sparks at the tip of each plug, then spark is fine. Next test the fast idle valve.

By the way, your plugs and wires could be fine, but you could have a bad component in the distributor.
 
Old Jun 28, 2008 | 12:22 PM
  #9  
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Default RE: Need Help ASAP

ok i will check that..how about the map sensor?
 
Old Jun 28, 2008 | 12:32 PM
  #10  
RonJ's Avatar
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Default RE: Need Help ASAP

A bad MAP sensor or MAP sensor circuit will generally throw a CEL trouble code.
 



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