Engine management light next episode ?

[chrisrc]

Hi, not been on of late as all family has been down with the dreded virus.

As you may be aware i have been trying to get the light of (engine management) on my 75 club after the so called rover specialist Balxxed things up. I have taken the ecu from my other car and plugged it in on my car that i use also keeping the key from the other car very near to the key in the ignition, now upon turning the key the car turns over very nicley (doesent start), when i release the key to stop cranking the engine management light has gone out, what i need to know is can my ecu be reprogrammed to the right spec to allow the light to stay out. i shall not be taking the car back to the dealers as it appears they also set it up for deisel as well, any ideas guys. :bowdown: chrisrc

[rt2]

I do not think an ecu taken from another car can be reprogrammed to your car. I think you will need a brand new ecu.

[chrisrc]

I do not think an ecu taken from another car can be reprogrammed to your car. I think you will need a brand new ecu.


Sorry, Confusion? i thought someone may follow me on this as its been a discussion for a while, the ecu is brand new just programmed wrong, the old ecu from my other 75 when plugged into the car that i drive knocks the engine management light off, but obviously wont start the car ineed the new ecu reprogramming properaly to know the light off as well.
I know its difficult to follow but hopefully someone will.

:) Chrisrc

[Greeners]

So if I've got this right.....

You had a problem, the garage fitted a new ECU and got it wrong. When you fit the original one, you get fewer problems ?

[chrisrc]

So if I've got this right.....

You had a problem, the garage fitted a new ECU and got it wrong. When you fit the original one, you get fewer problems ?

try again, i had a new ecu fitted on the car the car came back to me with the engine management light on, when the car was taken for the mot it was found to be set for a diesel, then i bought another 75 club for spares, my mechanic told me to put the ecu from my spares car onto my car which i drive just to see if it would knock the engine light off, which i did and it knocks the engine management light off straight away, therefore i summise i need the new ecu reprogramming if anyone can help me.

i know its long and complicated but please bear with me.

chrisrc

[Lates]

Diesel ecus are different to mems3 ecus ?

[chrisrc]

Diesel ecus are different to mems3 ecus ?

yes i sure know that, does anyone have the ability to reprograme a new ecu that has been programed wrong.

[SKS Disco]

try again, i had a new ecu fitted on the car the car came back to me with the engine management light on, when the car was taken for the mot it was found to be set for a diesel, then i bought another 75 club for spares, my mechanic told me to put the ecu from my spares car onto my car which i drive just to see if it would knock the engine light off, which i did and it knocks the engine management light off straight away, therefore i summise i need the new ecu reprogramming if anyone can help me.

i know its long and complicated but please bear with me.

chrisrc

Hi,
Quick clarification question.
Do you by any chance mean the "Engine Disabled" light on a highline pack?

[Moonstone]

What a confusing thread! Let's see if I can add to it.

1. The engine immobiliser is separate to the ECU. Holding the spares car's fob near to the ignition should not be necessary, as the original immobiliser will still be installed.

2. The engine warning light only means the ECU installed has a fault code stored that should be investigated. The spare ECU might not have any active faults stored, so the light goes out on ignition, as it should. However, I'm not sure whether the check only happens after starting, so maybe the spare ECU has fault codes stored but hasn't yet been checked. Also, if you'd been able to start the engine, the current fault would have registered on the spare ECU as well, and the light would have come on.

3. The ECU doesn't necessarily need re-programming. It does need to be connected to a diagnostic tool to find out what the fault is and to clear it once the problem has been fixed. If the warning has been present since the new ECU was installed, the dealer could be invited to do this under warranty.

[chrisrc]

sorry about this guys, please bear with me.

as i understand it the new ecu was programmed to recognise 2 lambda sensors when the garage installed it, my car has one lambda sensor, therefore the ecu is putting the engine management light on as its looking for a non existant sensor, when my local garage clears the fault code (which is the sensor) it just comesback on within 3-4 miles, hence do i need the ecu re programming with a t4 again but properly this time.

Hope this helps.

[Simon]

The ECU can be reprogrammed but the garage will need to ask for new codes from Xpart if they need to reconfigure the entire car setup. Only dealer-configurable options (ie headlight delay, speed-locking etc etc) are programmable via a T4 without sending off for codes. I don't believe lambada sensors are programmable on the ECU ? (can someone clarify?)

Slightly at a tangent to this - why has your car only got one lambada sensor? Should it have two? If so then why has it now only got one?

If the ECU was programmed incorrectly then the garage should rectify it ergo previous post about contacting them under warranty. If they do not have the correct equipment to properly diagnose and resolve the problem then a) they perhaps should not have undertaken the work in the first place and b) they are still liable to faulty workmanship/errors even after a length of time. I would be very inclined if I were you to contact them and have them resolve the issue under a warranty claim.

[chrisrc]

Simon great to hear from you, i have been led to believe that a 2000 w reg club on a 1.8 only has one lambda sensor, (can someone confirm this for me) i believe the sensors are supposed to be located at the topish of the engine and if there are two the second one just before or just after the cat, i had a new exhaust and cat on the car but there is nowhere for the second sensor on this. going back to when i had the car in a supposed rover specialist they had the car to remove a abs fault and to sort out high emmisions, the abs was sorted but buy putting a new ecu on the car which they said i needed, they had the car for 5 weeks nearly 6 weeks, new ecu, new cat and gaskets,new reg, new rail. total cost just under if i remember right 6 0r 7 hundred pounds. twice they told me they had sorted the car and twice they let me down with there servises, i specifically asked fore the old ecu back which they left on the seat for me, anyway fetched the car back as was fed up with being messed about by a bunch of cowboys, everything fine except that the engine management light is now on permanent, the guy said he could take it off for me but it would only come back on so why bother, then he had the cheek to ask for the old ecu back as he stands to lose 300 quid as it was supposed to be an exchange part, so there is bad blood between myself and this garage whome i would advise everybody not to use. This has all been discussed in a post earlier on and may shed more light on it for you if interested. What i need to know now is how much would i be looking at to get the new ecu reprogrammed.....
The ecu from my other car when fitted to this one knocks the light off straight away.
Hope you have followed all of this and sorry for any confusion its driving me barmy as well.:bowdown:
Cheers Chrisrc.

[Simon]

If your other car is a diesel it will not be looking for a lambada signal so wont show up on the instrument panel as a fault.

Your current ECU is looking for a lambada signal and because it can't find one throws up an error.

The two lambada sensors are used to determine how efficiently your engine is burning and are partly responsible for how much fuel is burned at any given engine cycle (all to do with reducing emissions of harmful gases).

I would say the route cause of this is the CAT and its lack of lambada sensor. Do you know if the correct CAT (according to MG-Rover specifications/part numbers) for your car was fitted?

[chrisrc]

Simon the car i drive is a 1.8 club petrol the other car that i have for spares is a 1.8 club se petrol, thats why my local garage suggested swopping the ecu to see what would happen regards the light. As it instantly knocks the light off i presume the new ecu has been programmed wrong.

[Simon]

Ah I see. My bad. For some reason I thought your other car was a diesel. Sorry about that.

It could well be that the first ECU is programmed incorrectly but I think the only way you will tell is by putting the car on a T4 machine. That will read the ECU and tell you exactly what car the ECU thinks you have along with all the things it thinks the car should have.

What you need now is a garage with a T4 who know what they are doing. Visit http://www.xpartautoservicecentre.com/ to find garages near to you who will have full T4 capability along with knowledgeable staff.

[chrisrc]

Thankyou Simon, i feel like i may be getting somewhere at last, when i got the car back from the garage who supposadley did the work i took it for an mot and the guy put it on his computer thingy as he told me they had set the car up as a diesel, does this make any sense to you, if its set for a diesel and its picking up a lambda sensor would that throw up the light, the car drives well as it is though.

[Simon]

The car simply wouldn't work if it were a diesel ECU in there. I doubt they would have even got it to fit properly.

[chrisrc]

No i know its not a diesel ecu, but when the local garage had the car to mot it he said it came up on his computer that they had set something up for deisel on my car, i was wondering if they have programmed the ecu wrong entirley, would they be able to programe it for diesel or some aspect of it.

[Simon]

I don't know if engine-specific details are 'hidden' from other variants on T4 I'm afraid.

If they are not hidden then yes it is possible to specify the car has something such as the parking heater option but I doubt that would throw the engine management light on, but you never know.

[chrisrc]

I think the best thing to do is follow your link to xpart and see if i can get it sorted from there.
Many thanks Simon and everyone else who's had there pennys worth. :D
Only joking THANK YOU.
Chrisrc.

[SKS Disco]

Simon great to hear from you, i have been led to believe that a 2000 w reg club on a 1.8 only has one lambda sensor, (can someone confirm this for me) i believe the sensors are supposed to be located at the topish of the engine and if there are two the second one just before or just after the cat, i had a new exhaust and cat on the car but there is nowhere for the second sensor on this. going back to when i had the car in a supposed rover specialist they had the car to remove a abs fault and to sort out high emmisions, the abs was sorted but buy putting a new ecu on the car which they said i needed, they had the car for 5 weeks nearly 6 weeks, new ecu, new cat and gaskets,new reg, new rail. total cost just under if i remember right 6 0r 7 hundred pounds. twice they told me they had sorted the car and twice they let me down with there servises, i specifically asked fore the old ecu back which they left on the seat for me, anyway fetched the car back as was fed up with being messed about by a bunch of cowboys, everything fine except that the engine management light is now on permanent, the guy said he could take it off for me but it would only come back on so why bother, then he had the cheek to ask for the old ecu back as he stands to lose 300 quid as it was supposed to be an exchange part, so there is bad blood between myself and this garage whome i would advise everybody not to use. This has all been discussed in a post earlier on and may shed more light on it for you if interested. What i need to know now is how much would i be looking at to get the new ecu reprogrammed.....
The ecu from my other car when fitted to this one knocks the light off straight away.
Hope you have followed all of this and sorry for any confusion its driving me barmy as well.:bowdown:
Cheers Chrisrc.

Hmmm. Sounds like it is either one of two things.
They either ZCS coded the car incorrectly when fitting the new ECU or the cat is faulty.

My money would be on incorrect ZCS coding. To generate new ZCS codes you will need an XPart dealer and a session on T4 to configure car.

[chrisrc]

It's a new cat on there, i think they have programmed it wrong from the start, have you any idea's how much i would be looking at x part to get this redone.
Chrisrc

[FROGGY]

Chris
I had a similar problem when I had mine in to get the cruise programmed in.
The garage were sent the wrong codes, and when they enabled cruise I had a permanent airbag warning light.
When they got the correct codes, all was OK.

Cost to you, about £20 I think for the code plus the T4 time.
Allow a day before the code appears at the garage.

HTH

Mick

[chrisrc]

Chris
I had a similar problem when I had mine in to get the cruise programmed in.
The garage were sent the wrong codes, and when they enabled cruise I had a permanent airbag warning light.
When they got the correct codes, all was OK.

Cost to you, about £20 I think for the code plus the T4 time.
Allow a day before the code appears at the garage.

HTH

Mick


Many thanks for the info, just need to get it booked in at my nearest xpart dealer then.

[chrisrc]

All booked in now, Evans halshaw at worksop, £45.98 for t4 session plus reprogramming on saturday 24th of this month. Will let you all know how i go on with this... FINGERS CROSSED.

:) Chrisrc.