CPS (Cam Profile Switching) vs VVTI vs DVVT

[GSR06]

limp mode is it?? i know that mitsu's stuck in limp tend to do just that. on 90's mitsu's it can be caused by many things, tho most commonly, atf low.

It's a Mitsui Gearbox.... can't be due to ATF low... already checked.... maybe sensors, TCU, etc

This gearbox issue only happens to Waja? How about cars with CPS Technology?

 

[Izso]

this actually isn't a normal problem. CPS cars have issues with the IAFM/CPS module itself, rarely anything on the GB. Did your car experience any flooding recently? Do you know where your TCU is physically located? Was there any accident damage recently? Anything happened prior to this failure?

 

[gunnerzz]

It's a Mitsui Gearbox.... can't be due to ATF low... already checked.... maybe sensors, TCU, etc

This gearbox issue only happens to Waja? How about cars with CPS Technology?

Its going to be a high mileage car so chances are some bad sensor or a worn out seal causing intermittent loaa of hydraulic pressure.

Or if one is very2 lucky,just some loose connector which trick the ecu that there is a fault and engage safe mode.

 

[GSR06]

this actually isn't a normal problem. CPS cars have issues with the IAFM/CPS module itself, rarely anything on the GB. Did your car experience any flooding recently? Do you know where your TCU is physically located? Was there any accident damage recently? Anything happened prior to this failure?

No flood, no accident... nothing happened prior to this issue... it's not my car actually but my friend's car

 

[GSR06]

Its going to be a high mileage car so chances are some bad sensor or a worn out seal causing intermittent loaa of hydraulic pressure.

Or if one is very2 lucky,just some loose connector which trick the ecu that there is a fault and engage safe mode.

Sensors can be the problem... hard to know since there is no check engine light coming out according to my friend.

For loose connector, unsure also

 

[gunnerzz]

Sensors can be the problem... hard to know since there is no check engine light coming out according to my friend.

For loose connector, unsure also

The fact that it goes into safemode means the TCU detects a fault and i do belive the TCU recorded the fault.

The gearbox still changes gear before it goes into safemode so i would say its not solenoid problem.

 

[lsm1991]

It's a Mitsui Gearbox.... can't be due to ATF low... already checked.... maybe sensors, TCU, etc

This gearbox issue only happens to Waja? How about cars with CPS Technology?

this is speaking from other's experience with mitsu gearboxes (not waja gear boxes mind you), some of the simpler things that can cause this 'limp mode' are, atf (ok you checked this), atf filter clogged, FUSES (in mitsu's there are a few fuses that have something to do with the gb)..... or if your car has this feature, sometimes you can mess and tap with the obd port to pull error codes?

 

[GSR06]

The fact that it goes into safemode means the TCU detects a fault and i do belive the TCU recorded the fault.

The gearbox still changes gear before it goes into safemode so i would say its not solenoid problem.

I believe so....

 

[GSR06]

this is speaking from other's experience with mitsu gearboxes (not waja gear boxes mind you), some of the simpler things that can cause this 'limp mode' are, atf (ok you checked this), atf filter clogged, FUSES (in mitsu's there are a few fuses that have something to do with the gb)..... or if your car has this feature, sometimes you can mess and tap with the obd port to pull error codes?

..I learnt that the GB Filter can't be changed just like that... need to remove the GB as it's sealed together with the GB... I asked the car expert and he told me that if there is no check engine light, then there is no way to check where the problem comes... can be sensors, can be this and that.... the used GB alone costs ~RM3k...

 

[lsm1991]

..I learnt that the GB Filter can't be changed just like that... need to remove the GB as it's sealed together with the GB... I asked the car expert and he told me that if there is no check engine light, then there is no way to check where the problem comes... can be sensors, can be this and that.... the used GB alone costs ~RM3k...

correct more often than not, you got to pull it out to access the filter. no tranny light, have to check manually i guess. Used tranny should cost less than that, you can check on mudah. I dont believe that that gb is a gb on demand
Or ask the waja club on fb, they seem quite active (take their advise with a pinch of salt, their community strongly **and blindly** believes in the use of surbos, nitro obd plugins and the whole bunch of completely useless stuff)

 

[GSR06]

correct more often than not, you got to pull it out to access the filter. no tranny light, have to check manually i guess. Used tranny should cost less than that, you can check on mudah. I dont believe that that gb is a gb on demand
Or ask the waja club on fb, they seem quite active (take their advise with a pinch of salt, their community strongly **and blindly** believes in the use of surbos, nitro obd plugins and the whole bunch of completely useless stuff)

Thanks for the great inputs Bro... appreciate it.... I am just helping a friend to troubleshoot his GB issue... need to find the lowest cost to fix this issue.

 

[GSR06]

On another note, would flushing the ATF and putting a GB treatment help in this case? I believe it can help a bit if it's due to mechanical issue i.e. GB itself... if it's due to TCU, Sensors, etc... then it might not help....

 

[lsm1991]

On another note, would flushing the ATF and putting a GB treatment help in this case? I believe it can help a bit if it's due to mechanical issue i.e. GB itself... if it's due to TCU, Sensors, etc... then it might not help....

well.... usually if anyone wants to attempt to fix it without having the pull it all out, thats one of the first steps taken. Is your friend's name nukman by any chance?

 

[Izso]

On another note, would flushing the ATF and putting a GB treatment help in this case? I believe it can help a bit if it's due to mechanical issue i.e. GB itself... if it's due to TCU, Sensors, etc... then it might not help....

When was the last time you changed your ATF filter btw? If that is clogged it might explain why it sometimes works and sometimes doesn't work.

I'd suggest a full GB flush, ATF filter change and perhaps a Lubeguard red/platinum treatment as a start, if it doesn't do anything then you'll know it's electronic.

 

[GSR06]

well.... usually if anyone wants to attempt to fix it without having the pull it all out, thats one of the first steps taken. Is your friend's name nukman by any chance?

Nukman... unfortunately no.... it's a small world anyway.