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Generation 4-1 Pajero NS Model 2006 - 2009

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Old 1 Week Ago
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Default Sport Mode Autoshift Disable

When I put my gear in sport mode the car does not hold the gear when RPM gets close to red line. The gear would up shift and its not helpful when driving in the sand.

I am aware that Pajeros after 2011 do not up shift. Any idea how to get my gear to hold in sport mode?

I am assuming this is a programming issue? Anyone has experience in programming Pajero gears?
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Pajero NS 3.8 Petrol Engine,

Accessories fitted: Custom Stock Bumper Trim, Custom front light bracket, Lovell SD raised springs, Lovell Gas Legend Shocks, Bush Skinz front & sump bash plates, custom rear bumper skid panel, Custom Panel Switch, Dual Battery, Larger Transmission Cooler, Cooper AT3 Tyres 275/65-R18
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Old 1 Week Ago
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Originally Posted by speedwave View Post
When I put my gear in sport mode the car does not hold the gear when RPM gets close to red line. The gear would up shift and its not helpful when driving in the sand.

I am aware that Pajeros after 2011 do not up shift. Any idea how to get my gear to hold in sport mode?

I am assuming this is a programming issue? Anyone has experience in programming Pajero gears?

..I dont understand why you,d want to hold a gear at close to redline..Max power is at 4000rpm and maximum torque is around 2-2500 rpm..Redline is about 4250. I,d be changing at 3500rpm
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Originally Posted by Dicko1 View Post
..I dont understand why you,d want to hold a gear at close to redline..Max power is at 4000rpm and maximum torque is around 2-2500 rpm..Redline is about 4250. I,d be changing at 3500rpm
When driving uphill on a steep sand slope and gear shifts up, car loses momentum fast. I would rather be in control of when to upshift. Has anyone seen this problem on the Gen 4?
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Pajero NS 3.8 Petrol Engine,

Accessories fitted: Custom Stock Bumper Trim, Custom front light bracket, Lovell SD raised springs, Lovell Gas Legend Shocks, Bush Skinz front & sump bash plates, custom rear bumper skid panel, Custom Panel Switch, Dual Battery, Larger Transmission Cooler, Cooper AT3 Tyres 275/65-R18
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Luke68 Luke68 is offline
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Default 3.8 petrol

Dicko,
I think that he's talking about the V6 petrol motor not the diesel that we're used to😁
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Dicko,
I think that he's talking about the V6 petrol motor not the diesel that we're used to😁
That's right it's 3.8v6
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Pajero NS 3.8 Petrol Engine,

Accessories fitted: Custom Stock Bumper Trim, Custom front light bracket, Lovell SD raised springs, Lovell Gas Legend Shocks, Bush Skinz front & sump bash plates, custom rear bumper skid panel, Custom Panel Switch, Dual Battery, Larger Transmission Cooler, Cooper AT3 Tyres 275/65-R18
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Sorry mate. Petrol not diesel. Last petrol car I had was a v8 falcon....not very good on sand dunes!!
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Sorry mate. Petrol not diesel. Last petrol car I had was a v8 falcon....not very good on sand dunes!!
Not with that attitude!
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Originally Posted by speedwave View Post
When I put my gear in sport mode the car does not hold the gear when RPM gets close to red line. The gear would up shift and its not helpful when driving in the sand.

I am aware that Pajeros after 2011 do not up shift. Any idea how to get my gear to hold in sport mode?

I am assuming this is a programming issue? Anyone has experience in programming Pajero gears?

Hi Speedwave,


The 3.8litre EFI Petrol NS has the Jatco V5A5A 5 speed auto with a 1.6:1 low stall torque convertor fitted and 4.3:1 diff ratios, this is same Jatco auto fitted to the PB/PC Challenger except the Challenger has the 2.04:1 high slip TC and 3.917:1 diff ratios.

On the Challenger the INVECS II AT ECU control has built is "self protections" that limit rpm in certain gears, this maybe the situation in the NS. The trans will automatically shift up a gear when rpm is too high so it could be possible that that the tacho is slightly out of calibration and the ECU is sensing 6000rpm and the tacho is only showing 5800rpm.



So does this only occur in high range or low range or both?
In what gears? 1st? 2nd? 3rd? 4th?
At what rpm does the up shift occur?

What size tyres are you running and at what pressures in the soft sand?

OJ.
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Quote:
Originally Posted by old Jack View Post
Hi Speedwave,


The 3.8litre EFI Petrol NS has the Jatco V5A5A 5 speed auto with a 1.6:1 low stall torque convertor fitted and 4.3:1 diff ratios, this is same Jatco auto fitted to the PB/PC Challenger except the Challenger has the 2.04:1 high slip TC and 3.917:1 diff ratios.

On the Challenger the INVECS II AT ECU control has built is "self protections" that limit rpm in certain gears, this maybe the situation in the NS. The trans will automatically shift up a gear when rpm is too high so it could be possible that that the tacho is slightly out of calibration and the ECU is sensing 6000rpm and the tacho is only showing 5800rpm.



So does this only occur in high range or low range or both?
In what gears? 1st? 2nd? 3rd? 4th?
At what rpm does the up shift occur?

What size tyres are you running and at what pressures in the soft sand?

OJ.
Hi OJ

You are right it's a Jatco gear as I checked. I have standard tyre size and this issue is common on 2007 to 2011 petrol gen 4 only.

Is there a way I can reprogram the INVECS II ECU? Do you know anyone that can help or maybe I find a way to alter the tach signal going into ECU to trick it to think RPM is lower so it doesn't up shift in sport mode.

I wish I can just grab an engineer from the factory this is a problem all 2007 to 2011 pajeros in my country are dying to solve
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Pajero NS 3.8 Petrol Engine,

Accessories fitted: Custom Stock Bumper Trim, Custom front light bracket, Lovell SD raised springs, Lovell Gas Legend Shocks, Bush Skinz front & sump bash plates, custom rear bumper skid panel, Custom Panel Switch, Dual Battery, Larger Transmission Cooler, Cooper AT3 Tyres 275/65-R18
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