If it loses trims it should still not be hard to start...
Is there another OS/COS that you can run on that PCM....?
If it loses trims it should still not be hard to start...
Is there another OS/COS that you can run on that PCM....?
Also, compare your tune file to a known good tune (e.g. stock tune), look at the startup and idle tables.
I've done that, it's not an issue with that because after the initial hard start it will start up great forever until you unhook the battery or flash a tune.
If it's any consolation I have always had these symptoms with COS3/ V1. It will also do it when the battery is disconnected/reconnected?
Just thought this was normal "re-learning" of the PCM?
'02 S10 Xtreme 4.3 Syclone power; AWD, 4L60E; 411 PCM: Walbro 255; 160F thermo: Front coil overs, 4" static drop;