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techtalk:ref:engctl01b [2024/10/06 02:27] – [DIY - Programming Interface] ixl2relaxtechtalk:ref:engctl01b [2024/10/06 02:32] (current) – [DIY - Programming Interface] ixl2relax
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 Actually, as you can see the above is not exactly the same as what I built. This is how I would do it if starting over. I started soldering parts and then found some things awkward (like inserting the black wire between resisters) so the above drawing is a bit better than what I actually did. Actually, as you can see the above is not exactly the same as what I built. This is how I would do it if starting over. I started soldering parts and then found some things awkward (like inserting the black wire between resisters) so the above drawing is a bit better than what I actually did.
  
-Like jtrapas who originally posted the schematic, I used 2N3904 transisters (its what was available at the local electronics store) rather than the 2n5088 in the schematic. The db9 connector is one of these: +Like jtrapas who originally posted the schematic, I used 2N3904 transisters (its what was available at the local electronics store) rather than the 2n5088 in the schematic.
- +
-{{:techtalk:ref:engctl:ultima53_660-programmer-billeuze04.jpg?500|Pic4}}+
  
 +The db9 connector is one of these:\\
 +{{:techtalk:ref:engctl:ultima53_660-programmer-billeuze04.jpg?500|Pic4}}\\
 The pins don't all line up the same as the PC board that I used so I broke off pins 1, and 6-9 which aren't used anyway. The pins don't all line up the same as the PC board that I used so I broke off pins 1, and 6-9 which aren't used anyway.
  
-Currently my engine is out on the bench and I'm not ready to program it. But I did hook up the adapter to test:+Currently my engine is out on the bench and I'm not ready to program it.\\ 
 +But I did hook up the adapter to test:
  
 {{:techtalk:ref:engctl:ultima53_660-programmer-billeuze05.jpg?500|Pic5}} {{:techtalk:ref:engctl:ultima53_660-programmer-billeuze05.jpg?500|Pic5}}
  
-and, without attempting to uploading a curve, It seems to work because I was able to download the diagnostics statistics from the ignition.\\+Without attempting to uploading a curve, it seems to work because I was able to download the diagnostics statistics from the ignition.\\
 These numbers where all "0" before I clicked "Download": These numbers where all "0" before I clicked "Download":
  

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