Hi guys,
I am new here
My wife's car developed gearbox fault, in result I was pushed to replace the gearbox.
Original gearbox was JCR with following gear ratios
Mechanism 61 : 18 = 3,389
1. gear 34 : 09 = 3,778
2. gear 33 : 16 = 2,063
3. gear 31 : 23 = 1,348
4. gear 29 : 30 = 0,967
5. gear 29 : 39 = 0,744
6. gear - -
Reverse 36 : 20 X 18 : 9 = 3,600
I have bough matching second hand JCR gearbox but unfortunately gentlemen who sold it to me, send me wrong one.
Gearbox he send me is KBL, which physically fits the car but got completely different gear ratios which are as follows
Mechanism 61 : 18 = 3,389
1. gear 34 : 09 = 3,778
2. gear 33 : 16 = 2,063
3. gear 30 : 24 = 1,25
4. gear 27 : 32 = 0,843
5. gear 30 : 48 = 0,625
6. gear - - - -
Reverse 36 : 20 x 18 : 9 = 3,600
So as you can see final gear ratio is the same and gears: reverse, 1st and 2nd are the same.
Gears 3rd, 4th and 5th are different.
In result engine speed does not match wheels speed in ECU and cruise control in gears 4th and 5th does not work.
Well... it works at low speed in 4th, but trips out when you accelerate, in 5th doesn't work at all.
I would like to avoid changing gearbox again as it was nightmare to do it outside, in a rain, having only two axle stands and single hydraulic jack...
If it is possible to input new values into ECU, please... tell me how.
Any help really appreciated.
Thanks in advance
Marcin
I am new here
My wife's car developed gearbox fault, in result I was pushed to replace the gearbox.
Original gearbox was JCR with following gear ratios
Mechanism 61 : 18 = 3,389
1. gear 34 : 09 = 3,778
2. gear 33 : 16 = 2,063
3. gear 31 : 23 = 1,348
4. gear 29 : 30 = 0,967
5. gear 29 : 39 = 0,744
6. gear - -
Reverse 36 : 20 X 18 : 9 = 3,600
I have bough matching second hand JCR gearbox but unfortunately gentlemen who sold it to me, send me wrong one.
Gearbox he send me is KBL, which physically fits the car but got completely different gear ratios which are as follows
Mechanism 61 : 18 = 3,389
1. gear 34 : 09 = 3,778
2. gear 33 : 16 = 2,063
3. gear 30 : 24 = 1,25
4. gear 27 : 32 = 0,843
5. gear 30 : 48 = 0,625
6. gear - - - -
Reverse 36 : 20 x 18 : 9 = 3,600
So as you can see final gear ratio is the same and gears: reverse, 1st and 2nd are the same.
Gears 3rd, 4th and 5th are different.
In result engine speed does not match wheels speed in ECU and cruise control in gears 4th and 5th does not work.
Well... it works at low speed in 4th, but trips out when you accelerate, in 5th doesn't work at all.
I would like to avoid changing gearbox again as it was nightmare to do it outside, in a rain, having only two axle stands and single hydraulic jack...
If it is possible to input new values into ECU, please... tell me how.
Any help really appreciated.
Thanks in advance
Marcin
