I'd go for the O2 sensor first. My Gen 1 behaved oddly every now and again it felt like I was driving into a headwind or the revs would just drop. I replaced everything, temp sensor, throttle sensor, MAF, plug leads. Last thing I checked was the O2 sensor and that's what it was - could have saved a lot of time and money if I'd done it first, they don't cost much. Rgds

Last edited by MDJ8; 02/21/21 11:47 PM.