2jzge will not idle?!

[1986.5supra_kid]

Just finished my build and got it to crank and halfway run. meaning i have to pump the gas to keep it alive. im wondering maybe my dizzy is off a tooth or i need to set timing. but im not sure how since i have to pump the gas and timing is set at idle.:1zhelp: keep in mind i have just plugged in the AEM EMS v2 and set up the injectors and TPS wizard.

engine is from a '92 sc300

 

[Radial]

Sounds like your ISCV is not working.
If ISCV is not used, your TB needs to be adjusted so that SOME air gets past.

Observe your WB and Ignition-timing readings as well...Too rich and getting an idle is difficult. To advanced or sloopy timing and you are strugling as well...should be around 10-15* BTDC at idle on JZ's.

 

[1986.5supra_kid]

turns out that it is the tune. i tried a different basemap and it worked a little better but i still have a rich afr

 

[Radial]

Get a 13-15 afr with 10-15* timing and it should run if its correctly set up (example: 10*commanded timing actually IS 10* on the crank pulley).

 

[1986.5supra_kid]

im just havung troubles understanding how to increase fuel and decrease fuel.

 

[Radial]

Im not using AEM, but the VE-table is the main fuel table in any EMS (once warmed up). Adjust it 10-20% lower in the idle areas.

Good thing about idle is that you can test and fail multiple times without causing damage. It's a learning curve thats quite steep.

 

[nathaninwa]

The bummer part about aem is there is no auto tune feature. Someone has created a hotkey.exe but I found it not worth the time. So your honestly stuck dialing in the VE table on your own.

you can make global changes to get you of the to rich/lean conditions by going to display, show full display, then down to Microsec/bit and sjusting that up and down. Make note of where you started and that will add/pull fuel all across the board till you can get to a tuner, or dial in the tune yourself.