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Topic
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I’ve searched the internet and can’t find any solution. Also, I don’t have a ton of money to go to a mechanic to test out theories.
Problem:
Every the car sits for a long-ish period of time 3-4 hours, when I start it, it stalls and runs rough until it warms up, then it runs fine. I’ve had the injectors cleaned several times but that doesn’t fix it. No CEL and no codes from the computer. My current thought is that it is an O2 Sensor issue or a Vtec Solenoid issue. Still odd that I don’t get any kind of code and I always pass my emissions inspection (probably because the car has warmed up by the time I get it in there). Any ideas what this could be?
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Replies
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Don’ t think you have an O2 sensor issue or Vtec issue, as those would manifest with a code. Additionally when cold the O2 sensors do not provide closed loop data (you are running on open loop when engine is cold). VTEC issue would be when under a throttle condition, so highly unlikely.
I would ask when the last time you had a tune up (new plugs, air filter, etc)?
If it has been over 80k miles since plugs were changed(or check for proper plugs) or the air filter is dirty, you could be having issues until the computer adjusts for the conditions.
Good luck
-Karl
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