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I have a D16y8 and when it warms up it studders and then almost stalls. I recently did a tune up, spark plugs, fuel filter and new air filter, and i cleaned the throttle body really good. But the problem is still present. Timing in good idle speed os exactly where it needs to be. Has anyone else had this probelm and what else can i check?

 
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Does it run badly when it does this, or is just it a matter of idling too slowly?
Clean the IAC/clean throttle body/set min air rate/relearn idle

 
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No it will run fine then it will studder, run fine then studder. The pattern continues until the engine cools down. But I'll give that a try and see what happens