[Scott65]

What ecu is controlling the engine? If something besides factory, you can delete the MAF sensor and tune it in speed density. That would narrow it down. Does it behave differently on a hot start vs cold?

[JSchmitz]

Originally Posted by Scott65

What ecu is controlling the engine? If something besides factory, you can delete the MAF sensor and tune it in speed density. That would narrow it down. Does it behave differently on a hot start vs cold?

Factory ECU. It does seem better when it's cold (before closed loop). I wonder if it could be leaking a little at the collectors causing it to appear lean at idle. I have ball and flare collectors. I'll post pics later. I have been disconnecting the battery in the evening to be safe since I just rewired the car. This could be causing it to start over learning every day? I could email the tune and log files if anyone cares to look at them. I haven't messed with factory fuel, spark, MAF, etc.