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Discussion Starter · #1 ·
Since the weather has started to get colder I have found out that my car will not start when it's in the 30's. I thought it was a dying battery at first but it cranks over just fine, it just never actually starts. But when the weather is warmer she starts up no problem. I was think it could be a bad coolant temp sensor but could be wrong. Anyone have any input?

Thanks,
Bryce

Car is a ek k20a2
 

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im not running iacv and i live in nova scotia today its -4 and started no problem. are you using the air assist? that's all i have hooked up. i idle at 750. around 1200 on a cold start. before i hooked it up i was getting the code for o2 sensor not heating up quick enough after 60 seconds. like you said in the warmer weather i wasn't getting the code, it got cold, got the code, so i hooked that up and no more codes.
 

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Discussion Starter · #6 · (Edited)
I'm not on e85 i only run 93 through it and I still have the iacv and it idles perfect once it starts up. The only thing I have done is the cruise control delete and the air assist was deleted as well.

The coolant lines to the tb have been looped on the water pipe.
 

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Discussion Starter · #8 ·
I've narrowed it down to it has to be below 30 outside for the car not to start.

Anymore input??

Thanks
Bryce
 

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Will it start if you give it a little bit of gas? If so I'd reinstall the idle assist to see if that cures the problem. Does it crank hard when it doesn't start?
 

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Discussion Starter · #10 ·
I can give it more gas and it still won't start. It cranks over hard yes not weak like as if the battery were dead. Pulled the cel code and it was for the evap sensor on top of the charcoal canister. I don't believe that has anything to do with it but figured I'd mention it anyway
 
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