have the same issue on my car. ebtcm circuit no frequency. i was told my ground on my chassis could be dirty so i had them clean them and sand the paint off. it was fine for a day then my car started back jerking again. i thought it was my trans at first. but they said its the grounds or your ebtcm module is bad and its a 1000 dollar piece. or the ecu is bad. im like which one?? but ed morad is getn an email from me and i want a tune anyway.
and cash for clunkers is sounding real good right about now. but nawll i like my gtp.
