Started by Ozzy, August 10, 2023, 14:13
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Quote from: Ozzy on August 17, 2023, 07:42Update, new O2 sensor didn't help and crank sensor seems fine also.
Quote from: Ozzy on August 10, 2023, 14:13Hi,Got a 2zz that's got odd misfiring issues but no engine management light/fault codes showing.It misfires badly on cold start with the slighest bit of throttle but this goes away when warmed up. The idle itself is fine and engine sounds smooth as it should with no weird sounds. Once warm, it hits lift aggressively but hesitates at high rpm near 8000. Feels like a soft limiter and makes brrrrrr noise lol like a DSG gearbox for a second.- I've tried new sparkplugs, working coilpacks and MAF from my Celica Tsport separately.- Tried temporarily running without my panel filter.- Have removed the cat for a decat pipe incase its clogged.- Tried spraying engine bay for vacuum leaks but nothing and all hoses are fine.- No leaks from fuel injectors. Look and sound fine.- O2 sensors are reading between 0.1v and 0.8v and fluctuating as they should however short term fuel trim is -3 and longterm is -13 and car is smoking black sometimes.Any experiences or suggestions what to do? 🤔 Thanks
Quote from: Ozzy on August 25, 2023, 10:16Dev - I'm using a Blitz panel filter which is quite clean. Ran it temporarily without but still breaking up the same.