dtes

hoping someone can shed some light on this annoying problem.


its a new ls3 running the e67 controller mated to a th400 with 2800rpm stall torque converter.
when warm and shifting from drive to reverse or vice versa the engine keeps stalling.


is the controller looking for a shift signal ect but not getting it ?


this is the engine in question
http://www.partsworldperformance.com...ngine-19301360

LSX Power Tuning

iTrader: (4)

The problem is the ECM is programmed as a manual so its not looking for a auto transmission. Since the ECM doesnt see the trans or no your changing gears its no adjusting the idle like it would in a factory auto. You have to adjust at a minimum the idle, idle airflow, and timing tables to get it to work.

dtes

thanks for your reply, any tips ? i have hp tuners.
the people here in the uk are useless for aftersales tech.

may i add its perfect until it get to operating temps and then acts up

dtes

would it be possible to tell it that its an auto and the supply shift signals via microswitches and the sidewinder shifter ?

LSX Power Tuning

iTrader: (4)

If you try to tell it there is an auto it will look for a TCM and open a whole new can of worms.

If it works cold and not when at temp I would look at your idle and idle airflow tables and add some air in at operating temp. As the engine is getting warmer the ecm adds less idle air.