after engine swap codes 740,1505,1624,731

[kevin4122]

After engine swap lots of codes-Can the idle control valve be cleaned and replaced?(1505)-The other codes I am lost on-The car will not shift out of 1st gear-(auto transmission)-and check engine light is on and overdrive light is flashing.thanks- 1998 kia sephia

[ron1004]

Welcome to the forum.

I recommend that you do a forum search for some of your queries - you'll find a good few posts on them.

The Idle Speed Control (ISC) can be cleaned with carb cleaner - while you're about it you should clean the throttle body and the EGR valve.

Take a look at the KiaTech web site in my sig and you'll find a fair amount of info on those codes - they're not always too detailed on the likely cause of the fault so let us know where you need more help.

[1fastkia]

Sounds like someone bought the wrong motor possibly.
If you have a 98 and buy a 00-01 motor, some sensors are different, the ecu is different, so,,, ouch if so..