How to find a Small EVAP leak without a smoke machine
Small evap leaks are the hardest to find. Using a smoke machine is very commonly how we find them. However, if you don't have a smoke machine, you still have your thinking machine. Use your Critical Thinking to understand the system and find the leak.
Stall at idle only
Most GM 2.4 engines will have this problem. It stalls at idle only, never when driving, always restarts AND NO CODES. You can spend a lot of time searching for the problem and searching the scanner for help. Look at this common problem, it just might be what you need to fix it.
Evap large leak smoke test
Some EVAP leaks can be hard to find. But usually "large" leaks can be spotted pretty quick. Here's the way I've been finding them with a simple smoke machine.