sam23

I installed a FAST 90/90 on my car a few weeks ago, and the SES light came on and its says i'm running lean in bank 1 & 2, but the SES light turns off for a day or 2 and comes back on, and also feels like i have a vacum leak, could this all be from me my routing my PVC system right??

Unertl42

iTrader: (63)

post some pics of the pcv. How does a vacuum leak feel? The easiest way to see if there is a vacuum leak is to spray a little carb cleaner around the edge of the intake and if your engine revs a little, there is your leak.

garygnu

the map sensor mite be a little loose.I siliconed mine in before installing.

sjsingle1

iTrader: (1)

the stock PCV system is a big POS!!! after 10 yrs that rubber is mush......unless you changed it out lately it is leaking

sam23

https://ls1tech.com/forums/11059703-post70.html

i kinda have like in the first pic setup, but with no PVC valve and the port on the back passnger valve cover is tapped in to the line that comes from the driver sider valve cover

sam23

But im try this setup on the link and see if that helps