Engine lag at sloped traffic junction

[kt]

Hi all,

After I stopped my vehicle (latio sport premium, 06 model) at a sloped traffic junction , the moving off is very very slow. I floor my accelerator but the pick up is still very slow. I'm installed pivot 3 drive and the mode is on SP 7 most of the time but that doesn't help. My FC is also getting from bad to worse.   I have changed my spark plugs, changed my air filter, done TB cleaning. Initially the engine response became better. Now it has reverted back to its old self. Not sure if its due to my air con compressor. There's a loud hissing sound coming from the engine bay, probably from the air con compressor when I switch on the air con during engine cold start. Could the compressor affect FC and engine response? Does any bros have any advice to this? Engine lag and bad FC...this is very depressing 

[jonpaul0104]

Hi all,

After I stopped my vehicle (latio sport premium, 06 model) at a sloped traffic junction , the moving off is very very slow. I floor my accelerator but the pick up is still very slow. I'm installed pivot 3 drive and the mode is on SP 7 most of the time but that doesn't help. My FC is also getting from bad to worse.   I have changed my spark plugs, changed my air filter, done TB cleaning. Initially the engine response became better. Now it has reverted back to its old self. Not sure if its due to my air con compressor. There's a loud hissing sound coming from the engine bay, probably from the air con compressor when I switch on the air con during engine cold start. Could the compressor affect FC and engine response? Does any bros have any advice to this? Engine lag and bad FC...this is very depressing 

i am also facing this issue...mine is Yr05 latio sport.....engine very laggy.....pickup from traffic light is damn slow....2mths back, TCM reset the ECU and it was better for a few days...now it is back to same.....

wondering whether anything got to do with ignition coil or cable?

[kelvin]

did you lay your floor carpet too thick that caused the accerator movement.try removing additional carpet and see got different or not.

[car_man]

I think might be the carbon accumulate in the piston. Try to go JB and give you ride a good 30mins of high rev to burn the carbon, it will surely help and you car will feel more responsive...

[jonpaul0104]

did you lay your floor carpet too thick that caused the accerator movement.try removing additional carpet and see got different or not.

This was wat TCM mechanic said......so now i shift the mat behind and make sure that it does not obstruct the accelerator.....but seems not this cause.......

[jonpaul0104]

I think might be the carbon accumulate in the piston. Try to go JB and give you ride a good 30mins of high rev to burn the carbon, it will surely help and you car will feel more responsive...

Did that during drive up to Genting last Nov.....dun feel any difference either......

I also notice that the problem is worst if stuck in traffic jam......car feel no power to move off at all unless floor the accelerator....then even only move at a snail pace...sometimes cars behind also honk honk....

Frightening experience was when stuck at Orchard jam...then went up slope to Taka shopping center.....car move at a snail pace and i got to use L gear to inch my way up....tot that it was going to die on me.....

[robtan99]

The easiest way for faster pickup is not to floor the accelarator.  You should do simple step on acceralator and
release and press again immediately, the pick up will kick in faster.  I did try floor accerelator before but not much help.

Hi all,

After I stopped my vehicle (latio sport premium, 06 model) at a sloped traffic junction , the moving off is very very slow. I floor my accelerator but the pick up is still very slow. I'm installed pivot 3 drive and the mode is on SP 7 most of the time but that doesn't help. My FC is also getting from bad to worse.   I have changed my spark plugs, changed my air filter, done TB cleaning. Initially the engine response became better. Now it has reverted back to its old self. Not sure if its due to my air con compressor. There's a loud hissing sound coming from the engine bay, probably from the air con compressor when I switch on the air con during engine cold start. Could the compressor affect FC and engine response? Does any bros have any advice to this? Engine lag and bad FC...this is very depressing 

[tranceluscious]

Hi,

I do have the hissing sound when i switched on my aircon... I guess it is normal cause my home aircon also produces similar noise. As for the engine lag, i could only think of your spark plug misfiring or CVT transmission fault. When my vehicle is stationary with the gear engaged at "D" or "L" or "R", theres a squeaking sound from under carriage... It dissapears after i engage gears  at "N" or "P"...

Must be thinking it could be the characteristics of CVT. But that i'll have to ask TCM. So i hope someone could enlighten me before i go to TCM

I do not have engine lag when moving off from slope or moving up the slope but it gave me some doubts when free wheeling down slope especially at Benjamin Sheares bridge exiting at Rochor exit(any other slope is ok). When free wheeling or in other words, release the pedal fully, the engine goes into engine braking and RPM shows 3000rpm...

I was just wondering if it's the characteristics of CVT transmission. Anyone had this experience before?

PS: I would go to reliable 3rd party workshop and have some diagnostic check on the engine lag. TCM could sometimes hide things and not fully say the full extend of the problem/s. Had such experience before but it was with Motor Image.

[Enzoni]

Hi,

I do have the hissing sound when i switched on my aircon... I guess it is normal cause my home aircon also produces similar noise. As for the engine lag, i could only think of your spark plug misfiring or CVT transmission fault. When my vehicle is stationary with the gear engaged at "D" or "L" or "R", theres a squeaking sound from under carriage... It dissapears after i engage gears  at "N" or "P"...

Must be thinking it could be the characteristics of CVT. But that i'll have to ask TCM. So i hope someone could enlighten me before i go to TCM

I do not have engine lag when moving off from slope or moving up the slope but it gave me some doubts when free wheeling down slope especially at Benjamin Sheares bridge exiting at Rochor exit(any other slope is ok). When free wheeling or in other words, release the pedal fully, the engine goes into engine braking and RPM shows 3000rpm...

I was just wondering if it's the characteristics of CVT transmission. Anyone had this experience before?

PS: I would go to reliable 3rd party workshop and have some diagnostic check on the engine lag. TCM could sometimes hide things and not fully say the full extend of the problem/s. Had such experience before but it was with Motor Image.

if you release accelerator when going down 'steep enough' slope, engine brake will kick in n rpm will show 3000 thereabout

[jonpaul0104]

if you release accelerator when going down 'steep enough' slope, engine brake will kick in n rpm will show 3000 thereabout

yup tat's rite....normal engine brake....tat is what I was told when I brought up this issue to TCM as well.....

[kt]

My latio also goes into engine brake when going down Benjamin Sheares Bridge. That's normal I think, one of the safety features for our ride. My former ride Honda Stream also does that when going down the Bridge.

I also would try my best not to go to TC, unless absolutely necessary. It's good to know that the hissing sound is normal...can save few hundred bucks and don't have to change the compressor for the time being...

Hi,

I do have the hissing sound when i switched on my aircon... I guess it is normal cause my home aircon also produces similar noise. As for the engine lag, i could only think of your spark plug misfiring or CVT transmission fault. When my vehicle is stationary with the gear engaged at "D" or "L" or "R", theres a squeaking sound from under carriage... It dissapears after i engage gears  at "N" or "P"...

Must be thinking it could be the characteristics of CVT. But that i'll have to ask TCM. So i hope someone could enlighten me before i go to TCM

I do not have engine lag when moving off from slope or moving up the slope but it gave me some doubts when free wheeling down slope especially at Benjamin Sheares bridge exiting at Rochor exit(any other slope is ok). When free wheeling or in other words, release the pedal fully, the engine goes into engine braking and RPM shows 3000rpm...

I was just wondering if it's the characteristics of CVT transmission. Anyone had this experience before?

PS: I would go to reliable 3rd party workshop and have some diagnostic check on the engine lag. TCM could sometimes hide things and not fully say the full extend of the problem/s. Had such experience before but it was with Motor Image.

[kt]

Ya that's the same thing that happened to my ride. Stuck at jam sometimes the response becomes very lagged. My sis also experienced the same thing when driving up a carpark slope. The car pick up was very very slow. She told me an uncle riding a bicycle can overtake her. The thing is, sometimes its responsive. Sometimes its not. So I don't think it's due to the accelerator pedal stuck by the car mat. Now I'm crossing my fingers and praying that its not due to the CVT gearbox...If not, it's bleeding time for my pocket again...

Any bro got any reliable workshop to recommend to diagnose this prob? (except for TC) Preferably in north side coz I live in Bishan. Pls kindly advise. I would appreciate that very very much.

Did that during drive up to Genting last Nov.....dun feel any difference either......

I also notice that the problem is worst if stuck in traffic jam......car feel no power to move off at all unless floor the accelerator....then even only move at a snail pace...sometimes cars behind also honk honk....

Frightening experience was when stuck at Orchard jam...then went up slope to Taka shopping center.....car move at a snail pace and i got to use L gear to inch my way up....tot that it was going to die on me.....

[kt]

I did that too. The RPM shoots up, but acceleration still very slow 

The easiest way for faster pickup is not to floor the accelarator.  You should do simple step on acceralator and
release and press again immediately, the pick up will kick in faster.  I did try floor accerelator before but not much help.

[jonpaul0104]

Hi,

I do have the hissing sound when i switched on my aircon... I guess it is normal cause my home aircon also produces similar noise. As for the engine lag, i could only think of your spark plug misfiring or CVT transmission fault. When my vehicle is stationary with the gear engaged at "D" or "L" or "R", theres a squeaking sound from under carriage... It dissapears after i engage gears  at "N" or "P"...

Must be thinking it could be the characteristics of CVT. But that i'll have to ask TCM. So i hope someone could enlighten me before i go to TCM

I do not have engine lag when moving off from slope or moving up the slope but it gave me some doubts when free wheeling down slope especially at Benjamin Sheares bridge exiting at Rochor exit(any other slope is ok). When free wheeling or in other words, release the pedal fully, the engine goes into engine braking and RPM shows 3000rpm...

I was just wondering if it's the characteristics of CVT transmission. Anyone had this experience before?

PS: I would go to reliable 3rd party workshop and have some diagnostic check on the engine lag. TCM could sometimes hide things and not fully say the full extend of the problem/s. Had such experience before but it was with Motor Image.

i always service my car regularly....and change parts even before the recommended intervals eg. CVT fluid change at every 40Kkm...last change of spark plugs was during 100Kkm at TCM....

i also crossing my fingers not due to CVT problem else have to chop hand & leg to repair it....

[Jazz]

Maybe throttle body dirty only ?

[m_k_tang]

Have you done engine flush & throttle body cleaning? What type or viscosity of engine oil did you use? Have you change or flush your CVT oil before? The above mentioned will help to improve the engine response especially if you are using 0/5W - 30 engine oil instead of 40 or 50... Using E-throttle will increase your fuel consumption. Maybe you can try out our latest Power Mesh which has the similar effect as E-throttle without affecting fuel consumption

[tranceluscious]

Looking at it, could be many factors affecting the up-slope acceleration. I saw you installed pivot-3 or something. Could be the problem too.

Saw replies and appreciate the feedback on engine braking. Guess it is a relief to find that it is actually the characteristics of CVT.

 I did some research on CVT. I tried to google for CVT maintenance. Most said to regularly change the fluid(NS-2). Ranging from 40K-80K-120K or 60K-120K intervals.

But i'm actually trying to find out when is the time to change the PUSHBELT? It is the steel belt that connects the two pulleys. So called the final transmission.

You can view the explanation here: http://www.bosch.nl/content/language1/downloads/GS_CVT_Leaflet_En_final.pdf

The cost of the steel belt here: http://www.cvtbelts.com/index.php?cat_id=1&id=10&pgid=4&mode=view_details&rec=0&search=1&skey=CH050&scat=

And the advise on changing the belt here: http://www.cvtbelts.com/index.php?pgid=2

But it does not say when to change the PUSHBELT.

I used to ride motorbike Gilera. The transmission is very much similar to nissan's CVT. But Gilera uses kevlar belts and not steel belts thus changing at intervals of 12K-24K-36K. But Nissan does not say when to change the PUSHBELT and we know all things exist has it's wear and tear.

Any info or advise on this matter. Thanks in advance

[phant]

I also face the same thing..
Mine is a 4AT yr 06 production..

Problem seem to arise after I change the relay which is the recall item.

[fessm]

Halo guys,

just for your information, mine 4AT sedan, also crawls like snail after stucked in jams.
Very often after the jam is cleared, the car will speed up very slowly, even if I depress the accelerator fully.
While still flooring the accelerator, I always took a glance at the odo and it crawls up to around 70 km/h.. after tat, rpm shoots up and car accelerates suddenly..

doesn't seems to be a CVT problem only..

[jonpaul0104]

Halo guys,

just for your information, mine 4AT sedan, also crawls like snail after stucked in jams.
Very often after the jam is cleared, the car will speed up very slowly, even if I depress the accelerator fully.
While still flooring the accelerator, I always took a glance at the odo and it crawls up to around 70 km/h.. after tat, rpm shoots up and car accelerates suddenly..

doesn't seems to be a CVT problem only..

Then it could be a inherent problem with Latio? Previously check with TCM and their standard reply "disgnostic test result do not show any abnormality"