Legnum vr4 stalling misfire

[BCX]

You mentioned cold starts are fine? This in my mind means a vac leak as ecu has enrichment tables for cold engine and cold start - hence masking the leak as ecu is adding extra fuel.

Hopefully theres enough info to go by. Let us know how you go and what you find.

 

[Legnum in America]

Today I tightened all clamps. TPS is showing 13.3. I adjusted the idle screw to 750rpm in park and 656rpm in drive.
Disconnected the battery for 30min. Reconnected the battery and let car idle for 10min.

Drove to the store was inside for 10min. Car started perfect. Went to get gas. Car started perfect. Drove home waited 20min and started car and rpm dropped to 300rpm. Creeped up for 30sec to 750rpm.

I will do more checking on the vac lines. I did replace most of them with silicone.

I do have TCL so I may just start replacing the parts along the firewall.