Has anyone had a fatal error with having the els addon installed? I got my friend to sign up and he kept crashing with els. He took out els and hasn't crashed.

ELS cars are known to crash due to the fact they are usually high-poly models and with the way that ELS works to make the lights flash, (it makes the vehicle regenerate every second!) it takes up a lot of RAM. Try using the default vehicles if ELS is making your game unstable, or use non-ELS vehicles. Alternatively, you could try out ELS v5.

We liked having just our lights on to pull someone over because if you active the siren, then they pull over weird. I could try just using non els cars, but i have 8GB of ram. gta 4 uses just a bit over 1gb of ram when i open task manager.

non-ELS cars you can use / to toggle 3 different light modes (without sirens). I've stopped using ELS due to how bad it is, and I'm waiting patiently for Illumination, which will be a ELS replacement.

When i use els with / , i can have my lights flashing and no siren and cars pull over so i don't have to hear the siren across the islands. If i use / for lights and sirens, when i hit shift would the cars pull over when they are already pulled over?