blue beasty
Leaks an prone to bits dropping off
- Posts
- 63,105
- Location
- Gloucestercotshirewolds
yes sorry - it is posted in the fender section already - just thought I would tap in to wammers skill and get his opinion
Fairy snuff
Range Rover P38 diesel injector pump problem
- Thread starter Lachleaves1
- Start date
This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
Fairy snuff
- Posts
- 19,297
- Location
- Buckinghamshire, UK. ('95 DT)
Thanks, Wammers.
Just for my benefit, will it be looking at the throttle at idle? Presumably it is just sat there at 0%? If so, why are his values all over the shop at idle?
Yep.
Could be that i was not idling all of this logging. Reved the engine at some of the save logs.
But it is still the limitation that you cannot see more parameters at the same time. E.g. throttlepisition and crankspeed at the same time as the fuelling parameters.
Is there not a way to log all of these at the same time. would be much more useful data.
Will be doing a new test tomorrow.
And I get Your point Wammers, Will be looking for a refurbished pump. Do these have to be coded to the ecu or is it normal dieseltiming?
Could be that i was not idling all of this logging. Reved the engine at some of the save logs.
But it is still the limitation that you cannot see more parameters at the same time. E.g. throttlepisition and crankspeed at the same time as the fuelling parameters.
Is there not a way to log all of these at the same time. would be much more useful data.
Will be doing a new test tomorrow.
And I get Your point Wammers, Will be looking for a refurbished pump. Do these have to be coded to the ecu or is it normal dieseltiming?
- Posts
- 58,170
- Location
- Preston Lancs.
No just the same part number as the old one.
- Posts
- 19,297
- Location
- Buckinghamshire, UK. ('95 DT)
That would cause blips for certain! The pump part number you need ends 994. Straight swap but you need a few special tools.
- Posts
- 58,170
- Location
- Preston Lancs.
At idle with throttle pot at less than 9%, engine speed is controlled by the ECU referencing CPS to maintain 750 RPM + or - 50. Fluctuations will occur as loads are applied and removed. Eg steering inputs, alternator loads. If load is removed the RPM will rise above 750 fuel is then reduced to return to 750. If a load is applied as mentioned fuel is increased to maintain 750. So there will always be fluctuations. Loss of contact with the feedback pot will cause hunting and or stall. If engine RPM drops below 500 RPM due to load the engine will stop.
Yep.
As for the loss of contact from the pot. You reckon it is worn out in certain places? As it happens on both idle and 1800 rpm, but not on higher rpm.
Just out of curiosity. Why is it that it seems to be working fine after it has been stopped for a while and engine is cold?
Today I moved the car 10 km without a misfire. Idle was stable at junctions. Power was ok and would not have noticed anything wrong if I did not know it existed.
As for the loss of contact from the pot. You reckon it is worn out in certain places? As it happens on both idle and 1800 rpm, but not on higher rpm.
Just out of curiosity. Why is it that it seems to be working fine after it has been stopped for a while and engine is cold?
Today I moved the car 10 km without a misfire. Idle was stable at junctions. Power was ok and would not have noticed anything wrong if I did not know it existed.
- Posts
- 58,170
- Location
- Preston Lancs.
Just keep watching it then. Intermittent things are hardest to nail down.
- Posts
- 19,297
- Location
- Buckinghamshire, UK. ('95 DT)
When my FIP started acting up it only did it when warm. Guess in that case the expansion when hot was enough for the tolerances to go far awry.
Had the same with a camshaft sensor on another car, now I think about it. Electronics don't seem to like heat.
Had the same with a camshaft sensor on another car, now I think about it. Electronics don't seem to like heat.
tomcat59alan
Well-Known Member
- Posts
- 18,611
- Location
- wirral and triquivijate
Sorry been away, but not to the sun. That's next week.
. The engine will run with number 4 injector unplugged.So now the car has run smoothly the last 8 days or do. But today after starting from cold engine, it started acting up again. Frequently cutting engine for half a second.
So I stopped, turned off the ignition. Connected my nanocom and started up. Then it runs fine again. Perfect....
So I stopped, turned off the ignition. Connected my nanocom and started up. Then it runs fine again. Perfect....
- Posts
- 58,170
- Location
- Preston Lancs.
I would suggest you do not start engine with Nanocom switched on. If you need to restart with Nanocom attached, switch it off, then start and switch Nanocom back on.
- Posts
- 12,628
- Location
- Sud ouest France !
How come wammers, will it damage the nano' or interfere with Ecu signals?
- Posts
- 58,170
- Location
- Preston Lancs.
How come wammers, will it damage the nano' or interfere with Ecu signals?
Think you may find that is what Black box recommend. Read it somewhere or Colin told me to do that when i got mine.
- Posts
- 12,628
- Location
- Sud ouest France !
Presumably to prevent damage to the nano' then. Makes sense, incase the risk of any electronic spikes to the unit. Maybe?
- Posts
- 58,170
- Location
- Preston Lancs.
Presumably to prevent damage to the nano' then. Makes sense, incase the risk of any electronic spikes to the unit. Maybe?
I got one of the evaluation models a few weeks before they went on sale to the public. Maybe it was to protect that. But sure i have read it somewhere in the bumff.
- Posts
- 12,628
- Location
- Sud ouest France !
I sure would like to get hold of one for my bus but a 5 string Warwick bass with a bubinga body is a bit more desirable at the moment....
..
- Posts
- 19,297
- Location
- Buckinghamshire, UK. ('95 DT)
How come wammers, will it damage the nano' or interfere with Ecu signals?
I think it is because power gets cut to the diag socket so it like a hard reset on the Nanocom. Probably OK if you're not in any module but possibility of corruption if it is writing at the time.
I suspect inside it is just a little £20 Aduino single processor unit running a stripped Linux OS. The average Smartphone would blow the pants off it. Pity he hasn't ported it to Android really, especially as Android is basically a different flavour of Linux at its core.
Similar threads
