remedave
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up north
4.6 Running lean pinking
- Thread starter remedave
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up north
sassanach
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that's anywhere above the m4 then
remedave
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that's anywhere above the m4 then
yep for you southerners i class down south anywhere below the A66
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Anything past Watford is a bit iffy and beyond Oxford is just a wilderness of strange!yep for you southerners i class down south anywhere below the A66
tomcat59alan
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Anything past Watford is a bit iffy and beyond Oxford is just a wilderness of strange!
I presume you mean south of Watford?
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I presume you mean south of Watford?
Unfortunatly not, anything north of Watford is where things start getting a squiffy....South of Watford ain't to bad....
When you get south of the Thames and into the Surrey Hills is when things start perking up a bit!
tomcat59alan
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South of Watford ain't to bad....
When you get south of the Thames and into the Surrey Hills is when things start perking up a bit!
You are obviously not well travelled When we get Southerners up here, they are all sworn to secrecy. Don't want the Wirral full of cocky knee's.
eightinavee
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You could,but it would not really be what you ought to be looking for.The whole point of scoping it is to see what the ecu sees while the engine is running.If there is any intereference while its running you will see it on the trace.A decent scope will allow you to save,then go back over pages of data and zoom in on any areas of interest.You could then also see if its a constant fault or intermittent.
If you can find a garage with an interested tech that uses a Pico scope you are well on the way.
Have a look around in here; Automotive Waveforms from Pico Technology
remedave
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Right, here we go !!!
I have acquired on loan a identical vehicle to mine, i have also acquired a oscilloscope, i have scoped both vehicles as the wires enter the ECU and both vehicles have more or less an identical wave form, they both out put the same voltage on tick over so i would pretty much say there is only two things left either the cam timing is so far out the ecu can't make any sense of it or the ecu if ruined
Obviously i would transfer the ecu from one car to another but i have no way of syncing it with the becm at the moment i did try a swap on the off chance, but it wouldn't start !!
i took the liberty to change other parts off it like the MAF and its cam sensor and its crank sensor it all made no difference.
I have acquired on loan a identical vehicle to mine, i have also acquired a oscilloscope, i have scoped both vehicles as the wires enter the ECU and both vehicles have more or less an identical wave form, they both out put the same voltage on tick over so i would pretty much say there is only two things left either the cam timing is so far out the ecu can't make any sense of it or the ecu if ruined
Obviously i would transfer the ecu from one car to another but i have no way of syncing it with the becm at the moment i did try a swap on the off chance, but it wouldn't start !!
i took the liberty to change other parts off it like the MAF and its cam sensor and its crank sensor it all made no difference.
remedave
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Oh and i nearly blew my disco up in the process 300tdi auto, it didn't like a 3 mile hill climb with a massive trailer and a range rover sat on it too !!! it got mighty hot didn't get in the red but just before it and the oil pressure light was on at tick over !!! the header tank looked like it was going to explode and the oil burning of the side of the block was a nice touch.
Luckly i had done the AC fan mod ( for got to switch them on in the first place DOH) so i sat in a lay-by for 5 min at 1500 RPM until it calmed down all is well with it, what a solid engine !!! pitty the 4.6 isn't as solid !
Luckly i had done the AC fan mod ( for got to switch them on in the first place DOH) so i sat in a lay-by for 5 min at 1500 RPM until it calmed down all is well with it, what a solid engine !!! pitty the 4.6 isn't as solid !
jamesmartin
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does your rad get hot all over sounds like cooling system needs attention
remedave
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Meh, not really bothered about the disco that stuff is no problem its just the old dog anyhow, it was probably the fact it was in first at 20 MPH at 3000 RPM foot nailed to the floor for around 5 minutes going up a hill with probably a overloaded weight on a hot day after just doing 25 miles of other uphill work, don't forget its a auto and its got AC so thats 2 rads in front of the engine rad, if i had to put money on it i would say the viscous fan is pooh, when i popped the hood the turbo was almost glowing and to add to the mix i have done the resistor mod to the ECU and the EGT at the time was 900 degrees !!!
Its a tough old horse it done a further 5 miles after that again up hill and no further issues, i have since done another 15 miles no problem, so i think i might have just caught it in time !!
Its a tough old horse it done a further 5 miles after that again up hill and no further issues, i have since done another 15 miles no problem, so i think i might have just caught it in time !!
eightinavee
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OK,good progress,does the scope have more than one channel ? If it does,see if you can scope the crank and cam together on both cars. You can then see if the cam timing is the same on the good car.
remedave
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Ok well, i have scoped them both on dual and it would appear that they are running very similar patterns,
the offending vehicle is slightly different timing wise but i would say not enough to cause any offence to the ECU (saying that i don't know what if any the tolerance level is form the ecu before it discounts the Cam-sensor)
So the jury's still out on this but in the mean time i am going to swap the ecu's just as soon as i can get software to enable me to do so, any recommendations on the software i should purchase.
the offending vehicle is slightly different timing wise but i would say not enough to cause any offence to the ECU (saying that i don't know what if any the tolerance level is form the ecu before it discounts the Cam-sensor)
So the jury's still out on this but in the mean time i am going to swap the ecu's just as soon as i can get software to enable me to do so, any recommendations on the software i should purchase.
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Blackbox Solutions Nanocom is the most comprehensive unit for its price range
remedave
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here is what i have read about them, i find it confusing !! does that mean ??? i cannot transfer the engine ecu from the donor vehicle and make it work on my vehicle because it won't program it ?? or does it mean i can transfer the ecu but by programming means i can't Tune the ECU ?????
The Nanocom Evolution for the P38 Motronic V8 includes the following:
The main Nanocom Evolution unit,
Green OBD lead (used to connect the Nanocom Evolution unit to the vehicles OBD socket),
USB Update lead (used to connect the Nanocom Evolution unit to a laptop/PC for updating Firmware or inputting the unlock codes),
Unlock codes for the following ECU's found in the Motronic V8 model P38
Motronic Petrol V8 Engine management
Functions include Reading and Clearing of Faults, Settings including programming records, live data Inputs, checking output functions and also the ability to reset the adaptive values. The Motronic ECU cannot be programmed by the Nanocom Evolution
BeCM (Body Control Module)
The BeCM does not actually have a fault code memory but instead has Outstations and monitors the radio frequencies used in the immobilization system. The software allows the reading and clearing of the RF memory and also the outstations. Various settings can be read and some changed. Live data can be read using the Inputs and also various functions can be tested using the Outputs option. On North American Specification (NAS) or Canadian models only, you can reset the Service Reminder lamp where this function is enabled. It should be noted that if the BeCM ECU is Locked, which is the state it is shipped from new, then certain information is not accessible. If the BeCM is Alarmed it will need to be unlocked by a specialist before any communication is possible. The Nanocom Evolution does not have the ability to unlock the BeCM.
The Nanocom Evolution for the P38 Motronic V8 includes the following:
The main Nanocom Evolution unit,
Green OBD lead (used to connect the Nanocom Evolution unit to the vehicles OBD socket),
USB Update lead (used to connect the Nanocom Evolution unit to a laptop/PC for updating Firmware or inputting the unlock codes),
Unlock codes for the following ECU's found in the Motronic V8 model P38
Motronic Petrol V8 Engine management
Functions include Reading and Clearing of Faults, Settings including programming records, live data Inputs, checking output functions and also the ability to reset the adaptive values. The Motronic ECU cannot be programmed by the Nanocom Evolution
BeCM (Body Control Module)
The BeCM does not actually have a fault code memory but instead has Outstations and monitors the radio frequencies used in the immobilization system. The software allows the reading and clearing of the RF memory and also the outstations. Various settings can be read and some changed. Live data can be read using the Inputs and also various functions can be tested using the Outputs option. On North American Specification (NAS) or Canadian models only, you can reset the Service Reminder lamp where this function is enabled. It should be noted that if the BeCM ECU is Locked, which is the state it is shipped from new, then certain information is not accessible. If the BeCM is Alarmed it will need to be unlocked by a specialist before any communication is possible. The Nanocom Evolution does not have the ability to unlock the BeCM.
remedave
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would one of these do it ??? or would a nano com do this anyway ?
Your engine turns over, but won't start up!
The BeCM Sync-Mate solves an increasingly common problem of P38 Range Rovers being left stranded because the BeCM, in effect, forgets the immobiliser code it needs send to the (EMS) engine management system for it to start the engine.
Previously when this happened, there used to be only two ways to get moving again: The first was to call out a garage with a diagnostic tool to reset the system and then pay the mechanic a "call out" fee for approximately 2 minutes work. This will fix the problem – until the next time.
The second way is to fit a new or used BeCM which will cost anything from £600 upwards plus the cost of programming and fitting.
There is now a third way! The BeCM Sync-Mate. Within a minute your BeCM will be automatically resynchronised with the engine management system and you will be on your way.
To re-synchronise your BeCM, you simply plug the BeCM Sync-Mate in and it resets the BeCM for you. No fuss, no palaver and more importantly, no costly call out fee just for two minutes work.
When it has finished working, it lets you know what it has done. With intelligent use of a high intensity flashing LED, the BeCM Sync-Mate will inform the user that the BeCM: Is already synchronised, or it is has been re-synchronised. Finally it could also inform you that there has been a communication error - in which case it will then also tell you the cause of that error.
Your engine turns over, but won't start up!
The BeCM Sync-Mate solves an increasingly common problem of P38 Range Rovers being left stranded because the BeCM, in effect, forgets the immobiliser code it needs send to the (EMS) engine management system for it to start the engine.
Previously when this happened, there used to be only two ways to get moving again: The first was to call out a garage with a diagnostic tool to reset the system and then pay the mechanic a "call out" fee for approximately 2 minutes work. This will fix the problem – until the next time.
The second way is to fit a new or used BeCM which will cost anything from £600 upwards plus the cost of programming and fitting.
There is now a third way! The BeCM Sync-Mate. Within a minute your BeCM will be automatically resynchronised with the engine management system and you will be on your way.
To re-synchronise your BeCM, you simply plug the BeCM Sync-Mate in and it resets the BeCM for you. No fuss, no palaver and more importantly, no costly call out fee just for two minutes work.
When it has finished working, it lets you know what it has done. With intelligent use of a high intensity flashing LED, the BeCM Sync-Mate will inform the user that the BeCM: Is already synchronised, or it is has been re-synchronised. Finally it could also inform you that there has been a communication error - in which case it will then also tell you the cause of that error.
