Paul372

How did you get on resolving the issue, did you find the cause

Gravesend

I’m having same issues with auto TT, gearbox doing weird stuff but i can’t find or fix the problem I’ve changed gear boxes, torque converter, with new filter and oil, sent ecu off for repair, swapped ecu over with another but still no joys, it’s definitely an electrical problem than mechanical, someone must know how to fix the problem or what’s causing it

Update, problem developed into and bigger one now car won’t change up gear, I was told it would be gearbox so I changed the gearbox again with OEM torque converter from a running car so I know it’s good and it’s still the same, so I know it’s not mechanical but definitely electrical. I havent tried swapping over the traction control ecu yet as can’t get hold of one to try, not sure what my options are now. What controls the auto box and tells it to change gear

I’m trying to diagnose a weird electrical transmission problem so want to try swapping over traction control auto ecu to rule that out

Pm

No what could it be on the throttle body, is there anything I can check. Now the ecu sorted it might now record an error code fingers crossed

Update, I took the ecu out and found a couple of capacitors had blown / leaked so I sent off the ecu for repair had all the capacitors changed. It has fixed most of the problems, overdrive now working, auto box now back to normal with changing up and down gear and powers back but I still have the overdrive light flashing and slip con light on.

Think srd tuning has a guy they send ecu off to be repaired

I can rule out the odo swapped it over with another one to test to see the overdrive would stop flashing but no change

I did read on here that possibility could be the speedo converter, might be worth a shot changing it, so i thought I’ll check it out, doesn’t look the best installation and unsure what brand was used

It’s got to be something electrical or a sensor I’m guessing

These are the lights showing on the dash when driving, slip control not working and overdrive doesn’t work IMG_8384.mov

Managed to get the display working where the engine lights is, but can’t read any error codes as it’s just flashing constantly without any pauses IMG_8382.mov

Tried checking the error codes with the paper clip trick but seems the engine light display not working