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Am I right in thinking that the engine ECU is in the compartment between the battery and the fuse box in the engine bay?

If yes, then I think it is a completely different ECU, unless the original has had a chip inserted or something and the installer has put a Zavoli sticker on the ECU along with a diagnostic port.

I'll photograph it later today and post.

I found that the OBD port in the footwell was corroded so off to a scrapyard today to get a replacement, perhaps one or two of the connections are dodgy. I borrowed a Snap-On Tools scanner yesterday, and that started losing the connection which pointed me towards the diag socket as mentioned in the earlier post.

With a new OBD port, my Hawkeye might start talking to the car properly.
 
merlinpjl said:
Am I right in thinking that the engine ECU is in the compartment between the battery and the fuse box in the engine bay?

If yes, then I think it is a completely different ECU, unless the original has had a chip inserted or something and the installer has put a Zavoli sticker on the ECU along with a diagnostic port.

I'll photograph it later today and post.

I found that the OBD port in the footwell was corroded so off to a scrapyard today to get a replacement, perhaps one or two of the connections are dodgy. I borrowed a Snap-On Tools scanner yesterday, and that started losing the connection which pointed me towards the diag socket as mentioned in the earlier post.

With a new OBD port, my Hawkeye might start talking to the car properly.
Click to expand...
I think the diesel models have an ECU there, it is empty on my 4.6 V8. I guess the LPG fitter used the space for the LPG ECU. +1 on the OBD socket and loss of sync.
 
OK, I have replaced the OBD port and now my Hawkeye will connect to the Body electrics etc...

I can read the ECU code that is in the BECM now, but I can't see how to enter that into the ECU.

The BECM is locked which according to the Hawkeye manual, is correct.

Is there a way to enter the code manually or do I need to buy a Syncmate?

My Engine Management System is the Motronic 5.2.1 BTW

I'm just about to get underneath to find the Crankshaft Position Sensor and clean the connector.
 
Yes, I have read the manual, but it says that once locked, which it already is, it cannot be unlocked.

Anyway, now the Hawkeye has picked up some faults as it can connect correctly following the replacement of the OBD port:

Fault 39: P1672 Immobilser - Incorrect Code Value Not Plausible - Fault Present and Intermittent

Fault 148: P1667 Anti-Theft Alarm System BCU/BeCM Serial Link [...] Timeout Minimum Value Not Reached. Fault not present and intermittent.

Can anyone suggest what this means?
 
Sounds like the immobiliser is active rather than loss of sync which means you need the EKA code. EKA is normall entered with the key but wirth Faultmate it's possible to enter it direct, no idea about Hawkeye.
 
Firstly, a very big thank you to Mozz Smith for his time on the phone this afternoon.

Ok, further updates!

Following a long conversation with Mozz Smith who was extremely helpful and very patient as we went through the sync routine for the key fob / alarm system.

Mozz is confident that the issue is not related to the alarm system, as am I following his explanation.

So my Hawkeye is of no use as it gave me the wrong EKA code, the code was hand written in the handbook thanks to a previous owner.

The Hawkeye needs to go on eBay I think, as it reads fault codes but I can't do much else with it.

So I'm still stuck:

The engine spins over, no errors on the dashboard, fuel pump doesn't run, no spark.

I can switch on the fuel pump with the Hawkeye so the electronics that operate it are OK.

Could this still be the issue of sync between the Becm and the Engine ECM, or is that the same thing that Mozz and I have just gone through.

Weather permitting, I will remove the crankshaft position sensor tomorrow, check the electrical resistance and make sure that the connector is fine.

I have established the location of the engine ECU now, so perhaps it's worth unplugging and re-plugging all the connectors on that (battery out first)

Can anyone think of anything else.

After that, I think it will have to make a trip to Emmotts at Colne, Mozz has recommended them highly.
 
merlinpjl said:
Firstly, a very big thank you to Mozz Smith for his time on the phone this afternoon.

Ok, further updates!

Following a long conversation with Mozz Smith who was extremely helpful and very patient as we went through the sync routine for the key fob / alarm system.

Mozz is confident that the issue is not related to the alarm system, as am I following his explanation.

So my Hawkeye is of no use as it gave me the wrong EKA code, the code was hand written in the handbook thanks to a previous owner.

The Hawkeye needs to go on eBay I think, as it reads fault codes but I can't do much else with it.

So I'm still stuck:

The engine spins over, no errors on the dashboard, fuel pump doesn't run, no spark.

I can switch on the fuel pump with the Hawkeye so the electronics that operate it are OK.

Could this still be the issue of sync between the Becm and the Engine ECM, or is that the same thing that Mozz and I have just gone through.

Weather permitting, I will remove the crankshaft position sensor tomorrow, check the electrical resistance and make sure that the connector is fine.

I have established the location of the engine ECU now, so perhaps it's worth unplugging and re-plugging all the connectors on that (battery out first)

Can anyone think of anything else.

After that, I think it will have to make a trip to Emmotts at Colne, Mozz has recommended them highly.
Click to expand...

It could be loss of sync, also worth checking the under bonnet fuse box for signs and smells of burning, check the ignition relay, pump relay etc.
 
I have to say a massive thank you to DON1 for lending me his Syncmate and for driving to a halfway point to let me take it home.

Just got home after a trip along the M62 to pick up the sync mate.

Went straight to the vehicle and followed the instructions, the green flashing light came on which proved that sync between the Becm and the engine ECM had been lost and restored by the sync mate.

One turn of the key and the engine fired up!

It seems to be running a little rough, but I'll run the LPG auto calibrate in the morning, all this messing around may have reset it's memory / settings....

Once again, a huge thank you to Don1, and also to everyone else who has posted their suggestions.
 
merlinpjl said:
I have to say a massive thank you to DON1 for lending me his Syncmate and for driving to a halfway point to let me take it home.

Just got home after a trip along the M62 to pick up the sync mate.

Went straight to the vehicle and followed the instructions, the green flashing light came on which proved that sync between the Becm and the engine ECM had been lost and restored by the sync mate.

One turn of the key and the engine fired up!

It seems to be running a little rough, but I'll run the LPG auto calibrate in the morning, all this messing around may have reset it's memory / settings....

Once again, a huge thank you to Don1, and also to everyone else who has posted their suggestions.
Click to expand...

Grand news and top bloke nomination goes to Don1 for helping out...
 
Well done paul for the updates and well done don for your loan of the syncmate ,,,top result alround ,,this is exactly what this forum is all about ,,,cheers to all and everyone have a happy new year ,,, kind regards mozz
 
Further update.

As you know the range rover is now running but it is running oddly!

It was fine before the loss of sync issue and nothing that I have done could cause it to run badly.
It is revs up just fine.
I loaded a saved copy of the LPG ECU settings back into the ECU to make sure that this wasn't the issue.
The problem is a lack of power when trying to accelerate on either LPG or Petrol.
In fact it is just like it was before I replaced the MAF a few moths ago.

Thinking back to when the RAC chap was looking at the vehicle, he pulled off the air filter and sprayed something through the MAF and asked me to spin the engine over, it was something like "easy start"!

Could the "easy start" or whatever it was, have damaged my MAF or at least clogged it up.

I'll take it out in the morning and have a look.

What's the best thing to clean it with?

Has anyone experienced something similar?
 
Took the MAF out this morning, cleaned it thoroughly with carb cleaner and then dried it out with a hair drier.

Re-fitted it and it is running smoothly again!

TIP: don't let RAC men spray easy start through your MAF!

Once again, thanks to everyone who has contributed to sorting this one out.

Hope I can do the same for someone else one day.
 
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