Hello all, I recently traded my 89 740 wagon for a 97 850 T5 sedan. It has a reverse intercooler pipe and cold air intake from ipd, these were already installed when I got it. I just changed the PCV valve and upper engine mounts and after putting everything together it won't stay on. For the upper mount, I took the bracket off so we could press the bushing in and to do so we had to remove the camshaft position sensor. I ended up replacing the sensor because the plastic around the plug had been almost completely disintegrated. I got a new sensor from O'Reilly's, and a new plug, rewired the plug in the same orientation we took it off. It'll crank up, idle high, then die unless I hit the gas. We figured it was probably a vacuum line so we took the intake off again to check the PCV hard pipe, found a brittle line and replaced it. After the new vacuum lines and position sensor I figured everything would be fine. Tried it again and it's the same thing, only stays on if the throttle is applied, and when I hit the throttle with the pedal it'll rev up to around 3k rpm.

At this point I'm kind of lost because I can't think of anything that we messed with that would cause issues like this. Advice is helpful

 

Update: after reading through some forums, I realized that the bracket that holds the PCV line is supposed to go on top of the intake manifold instead of in between the manifold and block, I'm going to fix that tomorrow and will update

 

Don't feel bad, I did the same thing when I replaced my PCV system on my 1997.

 

Yeah it seems to be a common mistake, I'm just hoping that's all it is because I need that car for school

 

Update: the car not starting seemed to be because of that bracket, it's up and running now, however I'm not getting any boost and there's a engine code saying "system too lean" (bank 1). I'm fairly certain it's the intercooler pipe that runs to the throttle body because I think it got turned a little too much during removal, however I checked the hose connections and all the clamps were down tight. I will take it off again and inspect further and will update.

If anyone has any ideas if there could be anything else, please let me know. I can still drive the car to where I need to go, however I'd like to get this fixed as to avoid any other issues in the future, thank you