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GEMS Engine Management Manual

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Old Mar 5, 2012 | 08:50 PM
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Default GEMS Engine Management Manual
Please find attached the GEMS engine management manual, includes codes and how they are calculated, etc. For 96-99 D1 and other vehicles. aka ecu ecm engine computer cpu

Also background material on earlier Lucas versions

If you are looking for D2 versions, see https://landroverforums.com/forum/di...manuals-48009/
 
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gems_obd.pdf (508.8 KB, 2136 views)
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LR_Fuel_InjectionSystems.pdf (413.4 KB, 1651 views)
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GEMS tech data by nanocom.pdf (70.3 KB, 2106 views)
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1314CU_14CUX_Systems info.pdf (577.0 KB, 11217 views)
Last edited by Savannah Buzz; Mar 7, 2013 at 10:06 AM.
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Old Mar 5, 2012 | 09:49 PM
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You sir..........are a gentleman and a scholar..........

Much appreciated.....
 
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Old Mar 7, 2012 | 07:49 AM
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Added similar detail for D2 in a separate post - Bosch M5.2.1 "Motronic" https://landroverforums.com/forum/di...manuals-48009/
 
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Old Apr 1, 2012 | 08:30 PM
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Sava,

Thanks for the GEMS! I read just about the whole thing this afternoon then went out and cleaned my IACV.

Wish I had found this info a long time ago!
 
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Old Apr 1, 2012 | 09:18 PM
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Originally Posted by Danny Lee 97 Disco
Sava,

Thanks for the GEMS! I read just about the whole thing this afternoon then went out and cleaned my IACV.
This sounds like something I need to download- and something I need to do.
 
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Old Apr 1, 2012 | 09:23 PM
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Have anything like this for 14CUX or 13CU*? Thanks Sav
 
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Old Apr 1, 2012 | 09:30 PM
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Originally Posted by Jake1996D1
Have anything like this for 14CUX or 13CUX? Thanks Sav
Pfftt... just put a carb on it and be done.
 
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Old Apr 1, 2012 | 09:41 PM
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Originally Posted by Spike555
Pfftt... just put a carb on it and be done.
haha dont have one yet BUT with that said I do have a 95 d1 donor that is going to become something else in the hopefully soon future.

Just read thru the fuel injection systems manual. Covers 13cu 14cu 14cux and gems. Pretty sweet.
 
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Old Apr 1, 2012 | 10:08 PM
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I've read though that manual several years ago, the GEMS system is pretty sweet, defaults for almost everything, so if a sensor fails you can still finish your safari.
Once the mall crawler (the DII) came out defaults went away.
 
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Old Apr 1, 2012 | 11:20 PM
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see LAND ROVER

and Fuel injection

and Rover 14CUX Hot Wire Mass Flow EFI: Service and Troubleshooting

and cmb : 14CUX Information

and the second site has a link to a copy of the 87 & up Rover 14CUX manual
 
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