will i need some serious help here. when my car starts out in the cold, it would run way to rich at 10. then after it gets warm up a couple of minutes then it comes down to a perfect rich at about 13.5-14. but after about fifteen minutes of idling then it would slowly and casually starts to run lean to about 17. now the ecu is previously tune for a b16 with the same set up. that should be fairly close enough for the car to run safe right? the only conclusion that i could come up with is that the iat is located in different position for the reading. does anyone have any advice on what it could be beside take it in for a dyno tune. thanks

 

well considering its not a b16 anymore and a LS-Vtec now.. why wouldn't you go get it tuned.. totally different motors!!!!!! nothing alike.... so take it to a tuner and get it tuned.. why do people insist not getting tuned with a new setup.. no setup is the same. GET A TUNE!

 

Absolutely NOT. The tune has to be off. Get it retuned. I hate when people come in here asking questions and the don't want the right answer. Get it TUNEDDD no other way around it.