S2000 Under The Hood S2000 Technical and Mechanical discussions.

Fireball out of intake manifold

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Old Mar 23, 2009 | 08:40 AM
  #31  
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Ok, i have spark, fuel, and compression! If the cams are not aligned, will the car still have spark? Basically what i am trying to figure out now is what does the car disable when the cams are not aligned right?
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Old Mar 23, 2009 | 04:39 PM
  #32  
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I put new gas in it and messed with timing some more. I tried to start it again and it was starting for a split second again. But when i opened the throttle a little bit it shot a fireball out of the intake manifold. Any ideas? Could it be firing in the wrong order?
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Old Mar 23, 2009 | 08:50 PM
  #33  
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Doubt it is firing wrong. Maybe try resetting the ecu since you have adjusted some things?!?!
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Old Mar 24, 2009 | 09:16 AM
  #34  
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If you got a fireball through the intake manifold, an intake valve was open during ignition. I think your base spark timing is off or your cams aren't lined up right. Opening the throttle advanced it enough to blow back into the manifold.

(advice worth price paid)
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Old Mar 24, 2009 | 03:28 PM
  #35  
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i was having the same problem (fireball through intake) when my cams were not aligned properly. i also had the same problem when trying to align the cams. it was always off by a little. good luck...
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Old Mar 25, 2009 | 08:37 AM
  #36  
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From the pic you showed with the timing alignment you are off a tooth like others said. The marks from the cams should be perfectly straight at each other.
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Old Mar 25, 2009 | 08:54 AM
  #37  
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Yes, you still get spark with the timing off at any point. You just get it at the wrong time (not at compression) so the car won't run (or it runs like it's on one cylinder).

One more vote for the cam gears being one tooth off somewhere. All the symptoms point to it.
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Old Mar 25, 2009 | 09:20 AM
  #38  
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timing is definately off. if you have spark and fuel, there's nothing else it needs. make sure the firing order is correct.
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Old Mar 25, 2009 | 10:07 AM
  #39  
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Well its a long shot but you said you were not getting any spark and you were only getting fuel for a while. What can happen is that you were just spraying your plugs with fuel and after you do this the fuel can get into the tiny pores of the porcelain. When it does this fuel is very conductive and it will acutally ground the spark plug out to the cylinder head and casuse you to have no ark at all....

If this is not the case how are your cam sensors they are the guys that tell ecm that #1 is TDC if they were damaged somehow the engine will not start.

Another option is your alternator correctly wired up? This could cause a no start condition.

Is your tps and MAP sensor clips crossed they are the same clips and are inerchangable.

Are your injecter clips in the right order.

Im just trying to give you some possiblities that could cause a no start.

good luck
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Old Mar 25, 2009 | 10:14 AM
  #40  
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i guess something is off, bc i can never get them to line up straight and have the crank set to the white mark.
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