2nd Gen Neon 2000 - 2005 2nd Gen Neon

Fuel pressure for engine swap???

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  #1  
Old 01-31-2009 | 02:40 PM
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Unhappy Fuel pressure for engine swap???

Hi there...new here.

Just recently did a engine swap in the girlfriends car. It is a '00 car and we put a '02 engine in it. The swap has a few unresolved issues still and im hoping you guys can help. Now when starting, the engine cranks several seconds before firing. Before it fired right up. I'm wondering if the '02 engine requires a higher fuel pressure than the '00 or would this make the difference during start-up? I have not swapped all the sensors and the check engine light stays on all the time. Haven't had the codes read yet. Wondering if this is all related or what do you think?...any ideas?
 
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Old 01-31-2009 | 02:43 PM
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How did you manage to do that? The 02's runs on a completely different engine managment system...

Am I missing something? Maybe it's the 03's...
 
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Old 01-31-2009 | 02:44 PM
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Run your codes, Ignition on off on off on while holding the trip reset. If you don't know the meaning of the code I will be right here, my book is right beside me.
 
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Old 01-31-2009 | 02:49 PM
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ok...thanks for the quick response. Here are the codes...

P 1684
P 0340
P 0108
 
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Old 01-31-2009 | 02:50 PM
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00-02 run the same 03-05 are ngc(junk) lol
 
  #6  
Old 01-31-2009 | 03:00 PM
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1684 = Battery has been disconnected recently

0340 = No camshaft position sensor signal at powertrain control module

0108 = Manifold absolute pressure sensor input above acceptable maximum voltage
 
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Old 01-31-2009 | 03:04 PM
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So check if your camshaft sensor is connected properly, and it looks like your map sensor is Fuxed.
 
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Old 01-31-2009 | 03:08 PM
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Originally Posted by OhNo2.0
So check if your camshaft sensor is connected properly, and it looks like your map sensor is Fuxed.
I wonder if swapping the sensors would take care of the codes and cure the starting problem?
 
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Old 01-31-2009 | 03:22 PM
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Originally Posted by karensneon
I wonder if swapping the sensors would take care of the codes and cure the starting problem?
Worth a try.
 
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Old 01-31-2009 | 03:27 PM
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Thanks...guess i'll try that. I know of one that won't interchange. It is on the intake manifold and is a different configuration. Unfortunately the intake from the newer motor was smashed.
 



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