I have a 2001 S-10 Blazer 4.3 with a 0411 PCM that I have been chasing an issue with after it sets off for 10 to 25 min then start it. The idle rpm will surge up and down for a minute or so, then smooth out. Also the idle will be smooth for the first few seconds. When scanned it was showing lean condition so I increased the after start enrichment as suggested in a earlier post. This has help but not cured the issue. The motor is stock except for a cam from a mid 90's 4.3, a 180 deg thermostat, #36 lb injectors for a later turbo, an opened up air box and an improved H-pipe/exhaust. I am running it in SD mode with the MAF disabled. I have performed the desired idle air procedure to get the IAC calibrated. Can someone look at my tune and scan to see if there is anything else to do?2001 Blazer added added to after start enrichment 4-18-23a.hpt2001 Blazer erratic idle after start 4-20-23a.hpl