hi all
I have a 2010 Camry Hybrid and for about a few months now once i start the car in the morning, i.e a cold start, i hear a tapping sound for the first few months, its like it is only apparent when the engine is cold, once the engine warms up then the sound goes away, a few months back i got a check engine light on and with the scanner the code read p0171 however this code would also give you poor FE which i continued to get great FE so i could not work that out, however the inbuilt dash FE was giving me higher FE at 7.2l/100 but when i went to fill up i was doing my own manual calculations and getting 6/l confirmed by my other scangauge that showed my FE was around 6.
but then after a while that light went off never to return,
I have had no other problems with the car and i am getting great FE with it, however this is the only thing that is bothering me.
here is a youtube video of it, tell me what you think.