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Evo 8 Won't Idle

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Old Apr 7, 2018 | 01:35 PM
  #16  
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I was able to log it at low idle before it stalled. Not sure exactly what these cars deisre but this is what I am trying to work with. Maybe a second opinion from someone would be benificial

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Old Apr 7, 2018 | 01:38 PM
  #17  
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This is the initial start up holding throttle to keep car running before letting it idle on its own, otherwise it just dies.

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Old Apr 8, 2018 | 12:29 PM
  #18  
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Only thing I see that could be worth checking is the O2 sensor. I assume that reading is in volts? Idle/cruise should be 0.5v. Yours seems to be jumping all over.
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Old Apr 8, 2018 | 02:41 PM
  #19  
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Well, new update:

Replaced the IACV with one from the parts store because at this point... I had nothing to lose (Minus the cost of $260 for a parts store sensor) and... car now runs and idles HAHA!

Tricky part was, I pulled the sensor to ensure it was opperating. It moved freely and had no worn teeth, I checked resistance at terminal 2 and 5 which were to spec with 30 ohms. I cleaned and reinstalled it then verified that the ECU was reading IAC count via scan tool data, had 120 counts on cold start idle. The sensor passed every test possible.

So my tip to anyone with this issue, testing the sensor isn't even worth your time haha, just replace it with a parts store sensor and if its fixed, order an OEM one online and return the parts store one.

Thanks for the help everyone!

Last edited by FlashEvolution; Apr 9, 2018 at 09:03 AM.
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Old Apr 8, 2018 | 03:34 PM
  #20  
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Old Apr 8, 2018 | 05:21 PM
  #21  
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Oh wow, good to know!
haha!!
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Old Apr 9, 2018 | 08:22 AM
  #22  
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somehow i knew this was gonna be iscv related lol. Glad you got it fixed, now enjoy your evo.
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