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Small update again. Yesterday i changed brand new ntk wideband and it changed nothing. Lean burn still kicking in middle of acceleration in third gear and it pops and bangs when cruising. No CEL but gives code 41. I have to check the o2 heating circuit. I also have the cold start problem. I have to crank two times, and in third try it starts right away perfectly. I have measured the coolant temp sensor and iat and they were good. Tried to prime fuel pump multiple times but it still needs few tries to start.
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