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Honda obd1 ecu questions

Old 03-01-2009, 02:17 PM
  #1  
em1
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Default Honda obd1 ecu questions

Well I met up w/this guy for a po6 and he told me the ecu where pulled from the junk yard and have never been tampered with. I didn't have any tools on me at that moment so I took him on his word. I get home pop the covers off and I see a M27256-17 chips where a socket is suppose to go but directly soldered in. There are no solder marks or anything that would indicate or these ecu have ever been touch, I don't know if someone started to chip these and stop or whats going on? I am pissed about the transaction because I wanted virgins, but don't we all.

p75
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Name:  ecu004-1.jpg
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Name:  ecu003-1.jpg
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po6
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Name:  ecu002-1.jpg
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tampered p06 for reference
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Old 03-01-2009, 03:20 PM
  #3  
em1
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Default Re: Honda obd1 ecu questions

Originally Posted by Dmc1
LOL um O.......K the one at the top is virgin you have to desolder the board before you can add in components.

the lower one you said is stock has been chipped by someone at some point from the looks of that uv chip it was probably a good while ago or some jankass ebay seller.
I had them backwards, I fixed the post: thanks for the correction.
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Old 03-01-2009, 06:19 PM
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Default Re: Honda obd1 ecu questions

looks like it has NOT been tampered with, but was done like that at the factory. Note the resistor type jumper in place of J1 (like what honda uses instead of just a piece of wire). Also the soldering looks really precise, not by hand, as in done in the factory.

Some ecu's came with an external chip like that, I'm not sure which ones, but it's no big deal. Like mentioned above you'd have to desolder those holes anyway, even if no chip was in place.
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Old 03-01-2009, 07:18 PM
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em1
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Default Re: Honda obd1 ecu questions

Originally Posted by stealthiskey
looks like it has NOT been tampered with, but was done like that at the factory. Note the resistor type jumper in place of J1 (like what honda uses instead of just a piece of wire). Also the soldering looks really precise, not by hand, as in done in the factory.

Some ecu's came with an external chip like that, I'm not sure which ones, but it's no big deal. Like mentioned above you'd have to desolder those holes anyway, even if no chip was in place.
I have never seen ECU solder points this clean, that's why its confusing the hell out of me. I thought I could solder until I saw these, thats why I didn't wanna call BS on them being virgins w/out others input.
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Old 03-01-2009, 08:05 PM
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Default Re: Honda obd1 ecu questions

i have actually seen a obd1 ecu that was completley stock but yet had a chip already in it. confused the ---- out of me at first but after soem searching i seen that its normal in some of them. never seen one after that though.
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Old 03-01-2009, 09:03 PM
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Default Re: Honda obd1 ecu questions

They are both completely virgin.
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Old 03-01-2009, 10:26 PM
  #8  
em1
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Default Re: Honda obd1 ecu questions

Thanks but there are 3 total in the pics, 2 po6 and one p75.
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Old 03-01-2009, 11:24 PM
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Default Re: Honda obd1 ecu questions

I only see virgin ECUs, sorry.
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