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That certainly made a difference! The car is actually driveable now, thank you! Still getting a lean condition when I come to a stop and go again.... I don't have the VSS hooked up so that may be...

Ah more good info - I thought "not reported" would disable the MAF. I've made the changes and am going to flash again and see if there are any improvements

Thanks for the reply. I'll disable the CL to start. The motor is basically all stock with the exception of the injectors (60lb siemens) and changed the original truck manifold to stock LS1. I have a...

I'm trying to do an SD tune and am having a strange issue. The idle is somewhat high but steady - about 1,000 RPM. When I hit the gas pedal the engine goes lean, so lean that it stumbles. It does...

Thanks!

Here is a log from it running - let me know what you think

Nevermind, figured it out. The throttle stop tab was bent and had the throttle opened up. It runs!

Got it running, but now the engine runs at about 5300 rpm and does quick surges....

I ran a scan and have attached the log. Tried to get the relavent PIDs to look at. Any help is appreciated.

Finished installing a 2000 5.3l in my 69 camaro. Just got my EFI Live software today, got everything hooked up and working.

I disabled the VATS and flashed the PCM. The engine starts but won't...

Glad I found this thread, I want to do the same thing with my 2000 5.3l. Are the fan pinouts the same for this ECU?