2012 FL2 TD4 EGR Fault P245a-77. No performance issues, no coolant leak but engine judder developed

Nodge68

Well-Known Member

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33,592

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Cornwall

• Aug 8, 2025

• #21

Matt E said:

Thanks mate. Just to confirm, do you recommend a new EGR valve, or the EGR VALVE REPAIR KIT, LR082289?

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If you've proven the EGR valve returns to its at rest position, and the wiring has been tested through to the ECM, then you only need the vacuum actuator.

 

Nodge68

Well-Known Member

Posts

33,592

Location

Cornwall

• Aug 8, 2025

• #22

Also. Be aware that any new components on the air intake system need to be calibrated using JLR SDD, as the ECM won't know the parameters of the new components, so it needs to learn them using the software.

 

M

Matt E

Member

Posts

17

Location

Tasmania

• Aug 10, 2025

• #23

Thanks for clarifying that mate. Can you recommend a suitable diagnostic machine that can calibrate the new part?
Maybe something like this: https://www.ebay.com/itm/3955561666...xLjIi2ZHga3L2+PlZu9U2Hkw==|tkp:Bk9SR-7llK6SZg