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IAT or ECM

  #1  
Old 04-15-2012, 06:01 PM
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Default IAT or ECM

My bike starts and idles. When I reeve the engine, it chokes. When the engine warms up it dies and cannot be started up again.

FI light gives code to check IAT (intake air temp). The resistance on the IAT sensor is good, and so is the voltage on the wires. The service manual recommends a new ECM. I can't find a new ECM online or can I afford a used ECM until my next pay check.

My question is that has anyone encountered a bad IAT sensor even though the resistance readings were according to spec?
 
  #2  
Old 04-15-2012, 08:25 PM
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I haven't encountered a bad IAT on any of my vehicles, but on the bike it's a $15 part so it's certainly worth a shot before replacing the ECM.
 
  #3  
Old 04-16-2012, 05:42 PM
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Apparently, there's another way to test if the IAT or ECM is at fault. Youtube!

Video: IAT or Intake Air Temperature Sensor Testing - YouTube

Sadly, I only get a 2.8v coming from IAT. So according to both the service manual and youtube, I need to find me another ecm. :\
 

Last edited by mnguyen84; 04-16-2012 at 07:52 PM.
  #4  
Old 04-16-2012, 08:16 PM
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i swapped it with another ecm...and the problem is still there.
 
  #5  
Old 01-15-2018, 07:03 AM
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Default What happened next

I have a cbr 954rr with iat code bike is wasy to start when cold impossible to start when hot. Recently it is impossible to go above 6000 rpm. But before replacing my iat and ecu id like to know what happened next with you?.
 

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