Hi tuning community,
I recently bought an MVPI2 and a wide-band to begin my journey into tuning EFI. My project is putting a 2004 5.3L DBW with a TKO600 into my 1969 Camaro. I'm leaving it NA. I've still got quite a bit of work to do until I attempt to start it for the first time but I have read the stock tune and begun to make modifications for first start-up. I'm using the stock PCM (OS 1273052) and reworked the stock harness. The engine, pcm, harness, TAC, and pedal assembly are all original from the donor vehicle. These are the details of the engine.
2004 LM7 from a Chevy Avalanche with the following changes:
LS2 intake
LS2 MAP
L59 (flex fuel) injectors
Summit 8719 Stage 1 high lift cam, 0.550/0.550 lift, 209/217 duration, 112+1 LSA
1-7/8" mid-length headers
single cooling fan relay controlled
Changes I've made so far:
Disabled VATS
Copied the injector control tables for the flex injectors (did not change stoich because I don't plan to use flex fuel)
Changed transmission to Manual
Enabled cooling fan - set to 2 Fans, fan 1 205? enable 198? disable 30mph disable, fan 2 disabled by setting enable 284? disable 284? 0 mph disable
Turned off DTCs for transmission, rear O2 sensors, evap & catalyst, stop lamp, and theft deterrent
Here are some questions I like to get feedback on.
When comparing the Cranking Fuel stock injector tables to the flex fuel injector tables there are differences in the FA Mult Stage 1 vs Time and Lean out vs ECT vs RPM tables. Should I also copy those two flex injector tables or leave the stock non-flex tables?
I compared the LS2 (05 Vette) MAP linear and offset with the LM7 MAP and they are the same. The LS2 has the Complex Model enabled but the LM7 doesn't. Should I enable it or leave it disabled?
I believe I will need to change the VE in the idle RPM areas to enrichen them some. With my new mild cam I was thinking 10-15%. Any suggestions?
Should I make changes to any of the idle tables prior to first start or wait to do that later when I'm idle tuning?
Besides setting the transmission to Manual and turning off the auto DTCs which I've already done, are there other changes I should make initially for a manual trans?
Because this PCM is stand-alone, should I disable any "U" DTCs?
Any comments, corrections, and suggestions would be greatly appreciated!