Finally got the car back in one piece but now more issues....

When the car gets warm and I get off the gas, like come to a stop light, the rpms go to idle and then 1 sec later just drop and shut off. Then on restart, it's ok until I drive to the next light....

Any ideas what else to check?

- Did compression test - even across the board at 200.
- Vacuum is good
- No coolant bubbles
- Oil ok
- No air out of the breather
- Idle timing at 16 flat
- Good plugs

I'm tempted to put back the stock ignition and see what happens.

The car is also Neptuned so I doubt it's the tune.

EDIT: Just tried taking off the IACV with the car on and it started bouncing. A lot of air was going through the opening though. Is that normal? I thought idle was just supposed to go up. The idle screw on the TB didn't change anything when I messed with it.

 

IACV was replaced. Much better with the new one but still had the problem. Unplugging the Evap Purge solved all the issues though.