Hi. I have a chinese mini car to which i swapped in a subaru sambar carburretor engine & automatic transmission. Now my issue is when i shift to "D" the car jerks forward but doesnt "go" as it should when given throttle. Its as if its in 3rd gear and moves slowly. It builds up speed as the car moves. It doesnt automatically shift from 1st, 2nd, 3rd etc. Its as if its stuck in 3rd. Moves well in reverse gear though. Upon further inspection i found that there are two sensors on the gearbox. One is a two wire & the other is a 3 wire. Theres a speedo cable seperate. Im guessing the 2 wire could be for overdrive solenoid? Any idea on how to wire up the 3 wire solenoid? Or any hack to get it to running as it should? Theres no kickdown cable on this transmission btw. Any help would be greatly appreciated. Thank you.
Anybody? What about a transmission ecu? This is a carburretor version so there should be a transmission ecu seperate? Any pics or part number?
If it's stuck in third gear it's probably in failsafe mode because of some other issue (computer can't detect solenoids, missing sensor, etc). You definitely need a transmission computer for this to work so it must have been swapped over, right? Do you know what year/model the Sambar was? If you can, check the error codes on the A/T computer (assuming you have a diagnostic port on it still). You'd have to see the codes from a blinking dash light, assuming you have that, but I don't know what you kept between the systems. It seems like automatic transmission computers are very picky about working if even one wire terminal is missing its typical point of connection.
