hi again guys!
i did the compression test ad its
1> 13.4bar
2> 13.4bar
3> 13.0bar
4> 14.0bar
i know the normal is 10-11
but i read in some manuals and bmwman91 post somewhere on bimmerforum so it's possibly just because of some carbon build up in culprit...
any way its better then under 10bar:)
so what the problem is, you guys remember i said i felt like a missfire or bugging, when i had the problem about having the oil suckup whole blocked by some metal piece in the oil pan....
now this missfire problem remains, only when im on the highway and going over or around 4000rpm, its happend only a few times, when it happens i just released the gaspedal wait a few sec. then all goes back normal, iff i try again to go faster then it happens randomly again. if i go 1st 2nd 3...with full gas, nothing happens, acctualy its better then it was. so i think when i had this "oil whole blocked" thing, my engine got hot because of no oil going around in there ( sure the engine was stuck a bit because when i tried to restart it the starter was cranking harder/slower then normal, which means there was heavy friction without oil.) and the exhaust system got too hot too and it might killed my O2 senzor.
the guy at the repair shop, where i did my compression test he also puted the thing in the end of the exhaust and he said the o2 senzor or the MAF is bad, but he was not sure.... he said its some fuel,air problem...
now, i think if the MAF is dead then i sould have problems quiet often, and at an exact RPMs...
this problem never happened before the "oil whole blocked" problem
the o2 senzor is only functioning when its get s to the proper temperature ( as i know, but i could be wrong...) so i think when i get on the high way and goig for a while then i try to go beetwen 4000 and redline, then this problem happens randomly, a few times.
anybody had bad o2 sensor experience?
could it be the o2 sensor?
is it possible to kill the o2 sensor with over heating it?
sorry for the long writes up, i just try to explain what is happening...
also SORRY for my english, i have to improve it....
Thanks guys!!!