ECU Needed for Testing

[cncfabs]

hi mate i want to c if there is an ecu for my truck to test as got same sort of problem as kamsin my truck is bosch year 2000 with 5 plugs going to it i have the no. as i have taken the dash out to test wires to ecu and its just below the heater controls part nos. bosch 0 281 010 284 nissan part no at bottom of ecu is 23710 7f404 TD do u have a ecu that i can try and if it works i will buy it if not will bring it back im in devon sorry again to kamsin for hi jacking doesnt take too long to take dash out but u need glove box out and pannel below and above steering wheel /dash good luck:thumbs

The one i have from 1999 is 0281001550 the others i have are from earlier tdi so unlikely to be same as yours

 

[makeitfit]

Thats really odd as ive got 1997 and 1999 both are in passengers foot well under a plate.

Could it be it's the Hitachi system that's in the middle then ? :nenau

 

[geoffdown]

Could it be it's the Hitachi system that's in the middle then ? :nenau

My system is Bosch and that's under heater controls:thumbs

 

[geoffdown]

The one i have from 1999 is 0281001550 the others i have are from earlier tdi so unlikely to be same as yours

Did the 99 plate have egr valve from factory mine never had egr valve do the nos. all have to be the same to work and on the 99 plate is the nats separate or r they built in to the main ecu where bouts r u in somerset

 

[geoffdown]

Shuddering at 1000 rpm on load ? I understand all terranos do that, all the ones I have driven have, there is little power under 2000 rpm. Simple cheap and easy answer which works every time......... change gear. regards bri

But how many gears do u have before 1st then its when in traffic or in carparks or when green lanning when it happens clutch in and its coming back to idle its lumpy like missing on 1 cylinder.

 

[Kamsin]

Sure it in the dash all the tdi ive seen are under a plate in passengers footwell they were behind heater controls on the old td and petrol versions

It very well could be, i have not looked for it yet. This is why i gave my self time to find it. If it is in the ffot weel then i missed it as iv had that side out a few times. But then to be honest i was'nt looking for it either.

Will get on to it tonight.

 

[Kamsin]

Shuddering at 1000 rpm on load ? I understand all terranos do that, all the ones I have driven have, there is little power under 2000 rpm. Simple cheap and easy answer which works every time......... change gear. regards bri

Hummm, so you telling me that being in 4th at 30 mph with a 2.7lt diesel engine is the wrong gear? Or as Geoff points out 1st gear in carparks looking for a space, crawling along is the wrong gear and i should be in low box.
Maybe thats it, were doing it all wrong:doh

 

[cncfabs]

Did the 99 plate have egr valve from factory mine never had egr valve do the nos. all have to be the same to work and on the 99 plate is the nats separate or r they built in to the main ecu where bouts r u in somerset

Didnt have egr not sure about the nats.Have sent you pm

 

[clivvy]

Hummm, so you telling me that being in 4th at 30 mph with a 2.7lt diesel engine is the wrong gear? Or as Geoff points out 1st gear in carparks looking for a space, crawling along is the wrong gear and i should be in low box.
Maybe thats it, were doing it all wrong:doh

well, I aint got the best Maverick in the world, but I can tell you now I get perfect driving from it, all gears. I can drive nice and slow in 2nd or 3rd, less than 1k RPM in 2nd and its fine, around town, 30 mph, 4th gear no problem.

 

[wildbri]

I use third up to 40 mph and 2nd around town I have found it a very inflexible engine with lots of transmission vibration on the three terranos I drive. I was disappointed when I first bought mine 6 years ago, thinking it would be a big lazy flexible engine with few gear changes but it aint like that, I am forever changing gear so in town I stay in second out town third and
fourth in the country 5 th dual carriageway bri

 

[geoffdown]

I use third up to 40 mph and 2nd around town I have found it a very inflexible engine with lots of transmission vibration on the three terranos I drive. I was disappointed when I first bought mine 6 years ago, thinking it would be a big lazy flexible engine with few gear changes but it aint like that, I am forever changing gear so in town I stay in second out town third and
fourth in the country 5 th dual carriageway bri

Well my problem is around 1000rpm mark when in 1st so if I was in 2nd its fine at idle in gear but when it gets to round 900 ish that's when it starts. if rev in natural then when the revs. come back down they r fine till they get to around 1000rpm mark then they slow up but it sounds like even when this is happening there is a slight lumpy ness does any1 else get this when the revs come down when car is not moving. seams to me that there is a glitch only around 1000rpm mark as she pulls like a train and I get 30-32mpg in country.

 

[makeitfit]

Right I didn't quite understand all that, you been on the sherry :lol
If you're in neutral and rev it then foot off the throttle , the revs will fall to about 1000 and then slowly drop the last bit. It's to do with a sensor on the gearbox I think that detects truck's moving or not, and thus uses different maps in the ecu.If you rev the truck while stationary it will flutter and sound like a miss if you see what I mean. However if that's happening IN GEAR as you engine brake for example, then it'd be worth checking out gearbox sensors.

 

[geoffdown]

Right I didn't quite understand all that, you been on the sherry :lol
If you're in neutral and rev it then foot off the throttle , the revs will fall to about 1000 and then slowly drop the last bit. It's to do with a sensor on the gearbox I think that detects truck's moving or not, and thus uses different maps in the ecu.If you rev the truck while stationary it will flutter and sound like a miss if you see what I mean. However if that's happening IN GEAR as you engine brake for example, then it'd be worth checking out gearbox sensors.

Sort of there but it sometimes does it when u just blip throttle not high just to around 1100rpm when the revs slows and it reaches around 1000rpm mark it sounds like a little lumpy/running on just 3cyl not 4 just when it goes slowly between 1100rpm and 900 rpm but when it plays up it will feel lumpy at idle for few sec then idle fine if I rev it then it revs freely hope that makes more sense

 

[makeitfit]

No sorry it doesn't make sense to me :nenau
I know if the car is stationary, regardless of gears etc, if you blip the throttle it will be a bit hesitant or miss, as before it's a sensor that tells the ecu what map to use.
Is there any chance you've got a tuning chip fitted?

 

[Kamsin]

No sorry it doesn't make sense to me :nenau
I know if the car is stationary, regardless of gears etc, if you blip the throttle it will be a bit hesitant or miss, as before it's a sensor that tells the ecu what map to use.
Is there any chance you've got a tuning chip fitted?

Pete, he has the same problems im having with mine, although it looks a little confusing how it reads on here. All the same issues, if we crack mine, we crack his as well.:clap

 

[Timbo_1975]

The symptom of a momentary fluffy idle (like its dropped to 3cyl) on a HOT engine immediately when the rpms drop from coast condition to idle and most likely with a power box installed is NORMAL. Will mostly be repeatable by revving gently upto say 2500rpm then letting it drop to idle.

But not to be confused with the pump sucking alittle air which will cause the same thing which could be present at all temperatures, but combined with drivability issues.

 

[Kamsin]

The symptom of a momentary fluffy idle (like its dropped to 3cyl) on a HOT engine immediately when the rpms drop from coast condition to idle and most likely with a power box installed is NORMAL. Will mostly be repeatable by revving gently upto say 2500rpm then letting it drop to idle.

But not to be confused with the pump sucking alittle air which will cause the same thing which could be present at all temperatures, but combined with drivability issues.

None of the above fits Timbo, as they do it from cold. If you rev the engine it wont do it, it has to be driving and around 1000 to 1200 rpm. its a feeling like its trying to get fuel or getting to much air. If you increase the revs to about 1500 rpm it stops doing it and it run as happy as Larry. Im starting to lean towards a fault on the accelerator peddle now as well as this would fit the problem, if there is a poor contact it would be in the same place every time, increasing the revs would take it past that point and it would run ok.

 

[Timbo_1975]

None of the above fits Timbo, as they do it from cold. If you rev the engine it wont do it, it has to be driving and around 1000 to 1200 rpm. its a feeling like its trying to get fuel or getting to much air. If you increase the revs to about 1500 rpm it stops doing it and it run as happy as Larry. Im starting to lean towards a fault on the accelerator peddle now as well as this would fit the problem, if there is a poor contact it would be in the same place every time, increasing the revs would take it past that point and it would run ok.

Sorry, i only speed-read some of the posts in this thread!

A dodgy track on the APP would give a jumpy rpm OFF LOAD in the problem area very much repeatable, but more throttle would clear it.

Driving you should be able to stick it in say 4th gear at 1-1200rpm and pushing the pedal down it should clear once past the dodgy area, if this makes sense.

Could also be a faulty idle switch too.

 

[Kamsin]

Sorry, i only speed-read some of the posts in this thread!

A dodgy track on the APP would give a jumpy rpm OFF LOAD in the problem area very much repeatable, but more throttle would clear it.

Driving you should be able to stick it in say 4th gear at 1-1200rpm and pushing the pedal down it should clear once past the dodgy area, if this makes sense.

Could also be a faulty idle switch too.

Yes i do understand, because thats what its doing. It does not do it on tick over at all so i think that rules out the idle switch. This is why i was starting to look at the pedel area next. (Im guessing the APP is the accelerator)
May try the ECU first though if i can loan one, just to rule it out.