TD5 Fluctuating boost under load

Also, not at home to check ECM/vin. The car was 100% original when I bought it so I'd be very doubtful that the ECM has been mapped.

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Originally Posted by sjane

.... So earthing the egr plug is the go?

Sent from my GT-I9100 using AULRO mobile app

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NOOOO, "isolate well the plug against earth", i meant insulating the plug to make sure it doesnt touch earth!!!

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Originally Posted by Phat-Customs

Why would blanking the EGR give me a fault code? As far as the ECM is concerned it still thinks it's connected as I have the egr solenoid still connected.

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cos that's how it should work, at least mine did it when it was standard and only the vacuum removed from the valve, got that code with everything plugged in, it's because the ECM "expects" a certain increase of IAT when the EGR is opened by the management and if it doesnt get higher IAT reading then it "knows" that the EGR is stuck closed and vice-versa when it's stuck opened.

You still get faults. I guess it senses the load is different without vacuum connected. Not all the time, but occasionally I get an egr stuck fault.

Sent from my GT-I9100 using AULRO mobile app

It's not about vacuum or load cos it happens with the system untouched in situ too...it's about IAT readings

Attachment 90471

Attachment 90472

What's ecu status: Robust mean?

i presume the engine was not started just ignition on and that "robust" term is other way to name the passive immobiliser(robust immobiliser) which in this case means it's enabled...about that IDs afaik the first 5 letters should be identical on a non tuned ECM(according to nanocom guide) but that's something i'm not certain about cos i might have misunderstood that

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Originally Posted by Nanocom - LUCAS Td5 - Diagnostic capabilities - INFO

Config Tune ID: This code is stored in the vehicle variant map data. The code is shown
exactly as it is stored with each of the 5 ID letters and 3 revision numbers being
duplicated twice. With the duplicates stripped out, the resulting code should match that
found in fuel tune map.
Fuel Tune ID: This code is made up from 5 letters followed by 3 numerical digits and is
stored in the fuel tune data area. It uniquely identifies this specific fuel tune data map
and the vehicle.
For Flash programmable type ECU's the five letters of the fuel tune ID code denote
application usage as follows:
Engine, S = Storm 5 cylinder diesel engine.
Gearbox, V or T = Manual, W or U = Automatic.
Model, L = Defender, D = Disco, H = unknown.
Tune state D, L, X, N or O denotes Tune type.
Market E = European, R = ROW, J = Japan, K = Korean.

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Have been running for a week now with the EGR solenoid unplugged, yet to see a fault code for it.