go to radioshack get the lowest watt setting soldering iron u can, i believe it is 15watts. then get the smallest highest grade solder, which is smaller than the width of the lead in a .05 mechanical pencil. i tryed with a higher watt iron and larger solder and i fucked up a circuit board. so this is the only way i reconmend

 

if the guy is doing 1 ecu why would he spend 300 on a soldering tool when he can spend 20 and get the same results? i can understand if he's doing a large quanity but if not why waste money. someone inexperienced at soldering probably will ---- up anyway....lol

 

have u done soldering before, on electronics?

 

yeah u might wanna try on someting else, maybe a bad ecu, unless ur sure of urself. ive solder many a wire but when i tryed electronics i was in for a surprise. iam better now with practice.