cbr600rrnut

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Hi gang

So over the last while after runnning at highway speeds 110-130kph for approx 50kms I would pull off the highway and after sitting at a red light the engine would hesitate and pop (backfire) for about 2-3 seconds and then clean up and run normal. Sometimes the cel would come on only if I run speeds over 120kph and then goes off approx 100km later. Scan code P0101. Now this morning I was driving to work at 110kph and the engine lost power and will backfire if I step on the accelerator to increase speed. Now if I step down hard to engage the downshift the engine will accelerate normally. I am thinking possibly a plugges cataletic converter? MAF? Any thoughts?

Thanks in advance

mjs182004

what is the code p0101? it may just be an 02 sensor

cbr600rrnut

Cleaned the MAF sensor and all is well...so far.