not sure if this is help about my problem anyone?

[blackgn231]

I was driving home from work last night and my car started skipping or it felt like it. Was looking at scan tool and it showed O2 counts were 07/16/17 then 0 and int was 160 and air flow was around 200 and it was bucking like then if I put my foot into could get past it and went back to normal.

 

[turbojd]

So is it running fine now?

 

[blackgn231]

yes it comes and goes.

 

[lolo86GN]

your MAF was reading 200? If you were at light throttle then I don't think you should be at that reading as the max WOT reading would be 255... Post the numbers at idle so people can get a better idea of what's happening... Your INT at 160 is high but more inportant than the INT numbers is what the blm number is... If your INT and BLM are both maxed out, it would be an indication of a big vacuum leak...

 

[mgmshar]

I noticed that you have a TA-49 turbo and large intercooler (from your sig). If this is happening around 12 psi of boost or so (which would be around the point you were moving 200 grams/sec of air), you probably have the dreaded TA-49/TE-44 compressor surge. Here is one of the many links written about it....

http://turbobuick.com/forums/threads/new-te44-turbo-install-fluttering-at-12-psi-why.378924/

Was the car "skipping" when boost was around 12 psi or so? Could you hear the turbo "sneezing" while the skipping was occuring?

 

[blackgn231]

not sure really it all started after,I blew my HG's was running fine before.I was thinking that the fuel pump might be going bad since it was reading 0 on O2 counts. and INT was at 160. This had me stumped one min its ok then either skipping or running out of gas. Was just normally driving it not into the boost at all .

 

[blackgn231]

Ok got a gage so will have to hook it and see but its getting bad now it drops more down in the 20 to 0 range on O2 counts and the pump is noisy for sure can hear it all the way up front sitting. Drove it around ran good then it started again could a bad pump do some thing like this?Un-plugged my cam sensor this helped before I replaced it nothing it still ran bad acts like it running out of fuel when it does it you get to a certain spot giving it gas and starts surging then if you give it more gas its will be ok. Till you get to that spot again.