After completing the head swap on my ka, as well as a complete emissions delete, i've been noticing that after start-up in the morning and during stops at lights, the car drops idle to around 200-400. I have checked for vacuum leaking with a modified smoke machine, i found one leak at the EGRC block-off plate, that was fixed. other than that i cannot think of what make be wrong, i just swapped my old, and broken, fuel injectors with ones out of a friends '89 240, i'm not sure if they are bigger cc or not, dont think that is the problem. the IAC is brand new, i'm in the process of getting money to order a new stock MAF to see if that may solve it. I recently found out the idiot who owned the car before me cut off the IAT, that may contributed to the problem. i';d appreciate other things i should check and any advice, thanks again

-andy

Does idle drop all the time or just after start up?