Ok.... so back to this heap of ****.
Last we left off, the MAP was defunct, and
@Rusty Nail suggested a new o2, which it needed anyways. Installed that last night, ALONG WITH a 180° thermostat. After talking with my tuner, he said the performance chip was burned for 180°.... so since the tbi relies heavily on the CTS signal.... i figured, what the hell, that might be rich issue... the former 160° thermostat always has it idling high.... guess what? Still didnt fix it.
Heres where we stand:
Something happens where the truck is constantly idling high, and when it does, performance goes down. Randomly sometimes, the truck will idle where i set it last, 650 or so, and when it idles correctly, the truck has got alot more power. Something is causing a rich condition, i just do not know what. No SES light. New map, new o2, new cts, no vacuum leaks (steady 22 in/hg), new distributor, coil, new iac, i relearned idle and manually set it. Timing is at 0° with plug disconnected. New knock sensor. ESC was swapped for known good one.
Im still scratching my head. At times, the truck will be idling high, then SUDDENLY shuts off in idle, and i have to crank and crank and crank and crank, and FINALLY get it running and it blows out a bunch of raw stinky gas out the tailpipe..... im clueless .... i'm open to suggestions....
Tomorrow i will be buying a bluetooth datalogger for the ALDL, and will be doing pulls for about 30 minutes, and then take the data, pull it up on the PC, and look it all over... theres something within the finer details the dumb SES signal isnt picking up... something causintlg a rich condition.
The bluetooth device is 80$, and i can then log data directly from the ECM on a free android app open it and view it in a excell document.
If i want to spend 20$ on ALDLDroid (app) i can take it a step further and see timing data at rpm intervals, and overall a much more detailed view. But FOR NOW, there is something much more obvious that my multimeter and vacuum gauge isnt picking up.
Im hearing it, and smelling it.
As i said, when it idles high performance is down. (Rich)
When it idles like i set it, it runs like a ****** champ.
(More ideal, lean condition)
The difference IS night and day.
Im open to suggestions in the meantime.