Gherrmann19

Hello, installed new BTR springs today and Straub trunnion upgrade today. Started fine, and idled ok. As it warmed up, the idle did fluctuate up and down slightly which it never did that before. Let it cool, restarted and took it around the block and every time I come to a stop with the clutch in, it stalls. It cranks quite a bit before restarting unless I have foot on the gas. It also smells like it's running extremely rich. Which leads me to believe vacuum leak, but I'm not sure how a vacuum leak would have been created. I only disconnected the Evap quick connects on the drivers side to remove the valve cover. On the passenger side I removed the fresh air tube and rear PCV tube only.

LS1 bottom with LS6 heads.

Anyone expereince this before?

neutron82

any codes?... check all the injector/coil connectors and plug wires to make sure they are tight and connected properly and double check anything that you had to disconnect in order to change the springs and trunnions... did you properly torque the rocker arms?... if the car was running fine before then likely it is something simple that you overlooked when putting it back together

Gherrmann19

No codes and no misfires. When cruising, it runs perfect. Going to take a second look at it today.

Gherrmann19

I did find 3 codes for loss of communication to PCM and BCM and something else. I did an idle relearn and it seems to have resolved it. Knock on wood.