I checked vacuum and it was about 17..late ign timing on guage,should it be more like 20..

 

I did hear some air leaking noise by the booster...but I sprayed everything and no noise..
march%20235.jpg

 

dam little big..

 

17-20" Hg at idle is normal, but that varies a little depending on your altitude. Here's a good site that explains vacuum testing/diagnosis: www.gregsengine.com/using-a-vacuum-gauge.html

 

dam light went on only driving to work..came back and it always comes on after I just start it.

 

I know how frustrating this must be for you. Your gonna need some diagnostic tools. A fuel pressure tester &/or a scan tool capable of reading fuel trim values. Here's a link that I find really good in helping to understand fuel trim and diagnostics especially DTC P0171. The link is for part one of two. Part two will pop up after part one. Hope this helps.

 

I am bringing it to my friend shop tomorrow to put in on the fuel pressure tester if that reports good maybe I will try a $200 mass airflow sensor I hope I don't have to anyone watch tech garage on velocity Saturday mornings at 8 o'clock it's very good but I already know most of the stuff he tells.. But cant figure this out with computers

 

awesome videos,so it wont be fuel pump or dirty fuel filter for only bank 1..wish i had a real ltft scanner...

 

A good scan tool is the best one in the box. Well worth the investment.

 

elm 327 is a scan tool on amazon,it tells everything you need,cheap too...there are some cheap knockoffs too..