Hotrod convertion

[antus]

Yep, short term fuel trim and long term fuel trim are pulling out a lot of fuel (STFT short term fuel trim AKA BLMs are -19 toward the end of the log and LTFT is pulling fuel too). You've also got an idle speed error set, so I think your IAC is questionable. At the end of the log the engine is running at 727 RPM with desired idle of 1000, and the IAC position is 196 which is wide open and still not enough air is getting in. Its possible it is hooked up backwards and gone fully shut or is not working for some other reason.

For the fueling consider the injector rate as well as the VE table.

[cvan1939]

As I said at the start I am new at this so where do I start to correct the long term fuel trim and short term fuel trim witch scaler or table do adjust them or how do I change the injector rate to correct them
Charlie

[Dylan]

Injector rate is a scalar called similar to "map a bpc" it's a calculation of engine capacity and injector size. For a 350ci and 24lb injectors I'd start with 0.13. Then look back at your logs and compare target afr to actual afr from the wideband and adjust the ve table in those cells.

But before tuning set the open loop flag to disable fuel trims.

[antus]

There is also a link to the calculator in the FAQ area (see link up near top right) under the question "Q. What size injectors do I have? I want bigger ones for more performance.".

If you havnt read the guides there, they should help get started too.

[cvan1939]

Yep have read FAQ several times and calculated the kingflow to be .119 is that what I need to enter in to tunerpro at map A run-A/F displacement/inject flow rate to adjust for the bigger injectors. Is there any to test the iac solenoid the rod is fully extended is there a way of getting to retract at this stage the car is running well so far the only problem it idles a little ruff till it warms up witch is obviously the iac.
Charlie

[Dylan]

As said earlier. Diagnostic mode with engine off will fully extend it. Think you can compress them by hand too first to confirm. It's been a while.

[Dylan]

What specs did you enter to get that result?

[cvan1939]

24lb and 5.7 in the kingflow calculator.and it gave me the cylinder size in CCs.
Charlie

[Dylan]

Sounds pretty good. Maybe I run a bit more just incase. I've used .13 a few times for 355 holdens on blue tops.

[cvan1939]

The target idle set at 1000is to high should be around the700 that it is running at how do I reset the desired idle back to 700 Know that I need to get more air in at idle so that I can wind the throttle plates back as the idle screw is wound in a fair bit and get the TPS back where it should be.