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  #1  
Old June 10th, 2012, 06:02 PM
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Andrew Najarian
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ECU Chip

So I've had this chip to install for some time and finally far around to it today. This is what I found when I opened it up. Is this the normal chip everyone has? At first I thought it was a cover over the chip but a little gentle persuasion did nothing to remove it.

The second picture is the new one sitting on top of what appears to be the old one. If I remove the old one, how can I tell which way the new one goes in? Will it be obvious?

Thanks guys!

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  #2  
Old June 10th, 2012, 06:44 PM
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Jason England
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Chip has a notch in one end for orientation.

To substitute the chip you'll need to de-solder ( english spelling ) the existing chip and either solder your in or mount a chip mount socket and put the chip in that.

Why you looking to to substitute the chip?

I've got a list of all the land rover maps somewhere. .
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  #3  
Old June 10th, 2012, 07:38 PM
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Andrew Najarian
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Does that one look original? I have a JE Engineering 4.5L engine in my NAS 110 but I don't believe anything was ever done with the ECU. I sourced this one that is supposed to work well with this engine.
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  #4  
Old June 10th, 2012, 07:59 PM
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I'd get another ECU and mess about with that ... They are pretty cheap on eBay.. That way if you mess something up you don't kill your truck.

The one In there already looks pretty original.

Found my list does it have a number Rxxxx somewhere? Maybe on the cover ... That would identify the existing tune.
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Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
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  #5  
Old June 10th, 2012, 09:03 PM
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I got a chip in my range rover, I pried the old one out with my miss army knife and mashed the new one in.
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Old June 10th, 2012, 10:56 PM
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Originally Posted by rover4x4
I got a chip in my range rover, I pried the old one out with my miss army knife and mashed the new one in.
I find it best to do a properly when dealing with fragile electrical components ... But your results may vary!
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Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
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  #7  
Old June 11th, 2012, 06:27 AM
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Charles Galpin
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Too funny.

Andrew, although I agree with Jason, that if you have any doubts you might want to pick up a used ECU to play with, what you are trying to do is actually quite simple and could be done with a swiss army knife, and possibly even a miss army knife if you have Phillip's mad skills.

What you are seeing in the first picture is a plastic cover over the existing chip. Simply ply it off, but be careful how you pry - ie don't put pressure on existing components or scratch any traces.

With the cover off, you should be able to see the notch in the ecu to match the orientation. Double check that the chip is in a socket and not soldered in direct and if it's in a socket, you can just pry it out. Pry slowly from each side and make sure you raise it equally on both sides so as not to bend the pins.

Then gently insert the new chip in the same orientation, ensuring all the pins are aligned with the holes.

I'll see if I can dig up any pictures of mine later that show this.
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  #8  
Old June 11th, 2012, 09:54 AM
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Andrew Najarian
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Thanks Charles! I thought it was a cover, but was afraid to pry on it. I tried pulling a little, but nothing seemed to move. I'll give it another go. It should be easy then.
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Old June 11th, 2012, 10:18 PM
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Here are pics of when I played with mine.

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  #10  
Old June 12th, 2012, 05:27 AM
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It would probably be a good idea to wear a wrist strap to ground yourself when replacing the chip, which looks like an EPROM.
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Old June 12th, 2012, 08:04 AM
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Quote:
Originally Posted by cgalpin
Here are pics of when I played with mine.
So that chip has a high compression ratio defender 3.9 - Desensitized ODB 95 MY tune according to my list.
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  #12  
Old June 12th, 2012, 09:51 AM
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Charles Galpin
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Looks like it (I googled and found this in the 1314CU_14CUX_Systems.pdf). Not sure what it means exactly but that's what was there when I got the truck

Marc-Andre this is good advice.

Andrew, it goes without saying which is why I didn't, but I am not advising you to do any of this, just letting you know my own personal experience. I'm not a electrical or automotive engineer, mechanic, lawyer, etc. so anything I say should be taken with a grain of salt. If it breaks you get to keep the pieces. YMMV, blah, blah, blah, blah, blah.
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  #13  
Old June 12th, 2012, 01:25 PM
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Andrew Najarian
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Quote:
Originally Posted by leastonce View Post
So that chip has a high compression ratio defender 3.9 - Desensitized ODB 95 MY tune according to my list.
Can you email or post the list? I haven't opened mine yet, but plan to in the next few hours. I'd like to know what is in there now.
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  #14  
Old June 12th, 2012, 01:33 PM
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google and find this doc 1314CU_14CUX_Systems.pdf

its at the back of the document.

------ Follow up post added June 12th, 2012 01:36 PM ------

Charles thanks very much for the lead ... I was expecting just the plug so was delighted to see the other gizmo attached.
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  #15  
Old June 13th, 2012, 01:36 PM
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Andrew Najarian
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Well, this is what I found under the cover...any idea what this program is?

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  #16  
Old June 13th, 2012, 08:50 PM
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Quote:
Originally Posted by Stmpede
Well, this is what I found under the cover...any idea what this program is?

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I guess it's for a 14cux hotwire system ECU from the location you found it ...
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