D-4D Limp mode

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Ou vale1
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D-4D Limp mode

Post by Ou vale1 »

My 2.5 D-4D goes into limp mode. During town driving no problem, but as soon as you hit open road within 10 km the power is gone, 2500RPM max. If you switch it off completely (even on the run) and restart its back to normal for another few km. No indicator lights coming on, no warning. Had it at the stealers first time it happened, they replaced the diesel filter and it was fine until I left town late Friday afternoon (Delmas). I have no faith in our local agent after numerous issues with the Prado so out of principle will not take it there.

I pressurized the fuel line and checked for leaks even though I believe it is not fuel related as it is not an intermittent problem, else it would surface during town driving as well. I don't have a chip installed, all stock standard. Fuel consumption seems not to change, 11,9 Km/l allround, no smoking, the bloody thing just wont go!

Will appreciate some assistance from our forum experts or anybody who experienced the same problem.
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Re: D-4D Limp mode

Post by jacques kotze »

Het jy n chip ingesit ?
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Re: D-4D Limp mode

Post by Ou vale1 »

Nee, soos ek se als standaard.
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Re: D-4D Limp mode

Post by george »

Speak to Jan. Maybe he can help. He is a Toyota Mechanic

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Re: D-4D Limp mode

Post by MCHILUX »

Hi Koos as die voertuig in limp mode ingaan brand die engine liggie of nie
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Re: D-4D Limp mode

Post by Ou vale1 »

Nee Jan, daar kom niks aan nie. Soos ek se, as ek heeltemal afskakel is hy weer 100 vir 'n paar km, en dit gebeur heeltyd.
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Re: D-4D Limp mode

Post by MCHILUX »

Is daar dalk n speedcruise geinstaleer?
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Re: D-4D Limp mode

Post by jacques kotze »

Probeer hom by n handelaar kry terwyl hy in Limpmode is.
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Re: D-4D Limp mode

Post by LouisZ »

Laat Toyota kyk na die "fly by wire" Petrol pedal en die konnektor op die Thottle body.
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Re: D-4D Limp mode

Post by ChrisF »

MCHILUX wrote:Is daar dalk n speedcruise geinstaleer?
klink PRESIES sos die probleem wat ek met my een gehad het !!


ontkoppel die cruise kontrol - onder by die pedaal. Ry om die blok, en koppel weer die cruise control op .... REG.
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Re: D-4D Limp mode

Post by Ou vale1 »

Geen cruise control nie. Probleem met dit invat agente toe terwyl dit in limp mode is, jy kan nie afskakel nie anders reset hy en as jy hom buite los terwyl jy hulp gaan soek ....................ZOOOOOMAAA, gone :beg:
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Re: D-4D Limp mode

Post by MCHILUX »

As dit weer gebeur brug die twee punte op die diagnostics plug onder die stuurwiel en kyk wat die engine lig doen as daar kodes is sal dit in twee digit formaat wees bv. 23 sal twee flashes met n pouse en dan drie flashes.


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Laat weet my wat die uitslag is dan kan ons van daar af werk
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Re: D-4D Limp mode

Post by rigardt »

had exactly the same problem on my polo 1.9 tdi. took a few garages 4 months to find the problem ! turned out to be a faulty sensor on one of the boost pipes. was also fine in town but as soon as u hit the highway it would fail. no power at all. switch ignition off and on and all is fine again. at first no lights on the dashboard. after about 2 months the engine light started coming on when it happened. not sure if the vw and Toyota turbo setups are the same but I would start by looking at the sensors.
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Re: D-4D Limp mode

Post by Ou vale1 »

MCHILUX wrote:As dit weer gebeur brug die twee punte op die diagnostics plug onder die stuurwiel en kyk wat die engine lig doen as daar kodes is sal dit in twee digit formaat wees bv. 23 sal twee flashes met n pouse en dan drie flashes.


Image

Laat weet my wat die uitslag is dan kan ons van daar af werk
Dankie Jan, sal dit definitief probeer. Moet dit gedoen word terwyl die enjin loop, want as jy afsit reset dit.
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Re: D-4D Limp mode

Post by MCHILUX »

kan gedoen word terwyl engine loop
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Re: D-4D Limp mode

Post by Ou vale1 »

Jan, het die bakkie uitgevat en gedoen soos jy se. As ek die brug insit bly die ejin liggie konstant flikker, die Airbag liggie flikker 5 en 1 en die ABS flikker 3 en 1. As ek afskakel en weer start is die limp weg, die enjin en Airbag liggies bly dieselfde maar die ABS liggie is af :naah: :beg:
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Re: D-4D Limp mode

Post by MCHILUX »

Koos, miskien moet julle dalk die diesel tank uithaal en oopmaak om te kyk of daar nie vuilgoed is nie
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Re: D-4D Limp mode

Post by Ou vale1 »

MCHILUX wrote:Koos, miskien moet julle dalk die diesel tank uithaal en oopmaak om te kyk of daar nie vuilgoed is nie
Die filter al 2x vervang. Ek het vandag agter gekom dit gebeur as jy 120+ ry. As dit vuilgoed was sou dit op lae spoed ook 'n probleem wees. Dan reset hy as jy afsluit en weer start, tot jy op spoed kom :alvarin:
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Re: D-4D Limp mode

Post by MCHILUX »

Het jy al n ander lugfilter probeer al kan jy n ou oorspronklike een leen net om te toets onthou op 120+ beweeg daar baie meer lug deur die filter as op 60 ongeag van die engine spoed
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Re: D-4D Limp mode

Post by Mars »

Daar vloei ook baie meer diesel deur die stelsel. Met sulke simptome sou ek vermoed iets beperk die vloei van diesel.
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Re: D-4D Limp mode

Post by jacques kotze »

Laat toets die Injectors
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Re: D-4D Limp mode

Post by Vlak vark »

dit klink meer soos n probleem by die tenk. iets suig vas teen die pyp wat die diesel opsuig. sodra jy hom afsit stop die diesel pomp en whatever teen die pyp sit val dan na die boodem van die tenk totdat dit weer opgesuig word waneer hy aan is. as jy in die stad ry is dit die heeltyd ry stop sodoende beweeg die diesel baie meer in die tenk rond as op die oop pad. daarom is dit moeiliker om voorwerpe op te suig terwyl jy in die dorp ry as oop pad.
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Re: D-4D Limp mode

Post by BlumTRD »

Boost pressure sensor .

As hy over boost gaan hy in limp in . Net soos as daar n plug en play chip ingesit word en die settings is te hoog .

Die ecu tel vinnig op as daar net te veel pressure is .

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Re: D-4D Limp mode

Post by Ou vale1 »

Eish!!! Probleem was toe die vakuum pyp op die turbo wat geskeur het. En die "stealers" wou ECU en injectors vervang. Ek het dit toevallig gesien toe ek die pyp moes afhaal om my hand in te kry waar 'n tang ingeval het.
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Re: D-4D Limp mode

Post by jacques kotze »

Bly vir jou part. Dit skep nie baie vertroue in die handelaars wat sommer net wil begin goed vervang wat hulle dink moontlik kan fout wees nie.
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Re: D-4D Limp mode

Post by Mars »

Goed om te weet dankie!
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Re: D-4D Limp mode

Post by A3hn »

My 2.5 (2006) sonder cat, sukkel ook met krag. Het nou 220000 km op. Kan die uitlaat boks beblok Wees?
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Re: D-4D Limp mode

Post by Mars »

Het jy al dat hulle jou bakkie op die computer sit om te kyk of als reg is? Dit is onwaarskynlik dat die "silencer" geblok sal wees. Wanneer laas is die filters ens. al vervang?
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