This is part 2 of the chipping and repair series for Honda ECUs. In this video I install the CN2 pins so a laptop can communicate with the ECU. As always thanks for watching please subscribe!
Just some quick tips for de-soldering.... I also used to struggle with de-soldering but after many years and damaged boards you learn.... So no disrespect meant. Clean tip (which he did) add solder to tip, put new solder down on all points you are wishing to de-solder ( just a small fresh dot of solder on slots 1 thru 5). Clean tip again. Put flux on ports 1-5. Clean tip and add solder to tip. Then use the solder wick. The addition of the fresh solder and flux to the ports along with a clean tip with fresh solder will allow the heat from the iron to transfer quickly to the solder in the ports flowing it almost instantly. Once solder is flowing the wick and LIGHT PRESSURE (he slipped off the wick at one point from pushing to hard and scraped the tip along the board, luckily no components were hit or any traces damaged) will clear the ports of solder quickly. The less time the iron is on the board the less chance you have of causing any damage to it.
Thank you this will be part of a bigger series of the cheapest tuning options. My other P28 started to act funny so I said why not i have the time and ability
I have the same part you installed but my moats 4 pin cable doesn’t plug in with it. Is their a 4 pin wire that u use differently from moats to do data log.
DIY KAI do by chance know the pinout of ic17? on the component itself its labelled ta8903sn. i believe most if not all obd1 ecu had them. no datasheet can be found by my searches.
Just some quick tips for de-soldering.... I also used to struggle with de-soldering but after many years and damaged boards you learn.... So no disrespect meant.
Clean tip (which he did) add solder to tip, put new solder down on all points you are wishing to de-solder ( just a small fresh dot of solder on slots 1 thru 5). Clean tip again. Put flux on ports 1-5. Clean tip and add solder to tip. Then use the solder wick.
The addition of the fresh solder and flux to the ports along with a clean tip with fresh solder will allow the heat from the iron to transfer quickly to the solder in the ports flowing it almost instantly. Once solder is flowing the wick and LIGHT PRESSURE (he slipped off the wick at one point from pushing to hard and scraped the tip along the board, luckily no components were hit or any traces damaged) will clear the ports of solder quickly.
The less time the iron is on the board the less chance you have of causing any damage to it.
Appreciate your input and thanks for watching!
I had exactly the same problem. After adding fresh solder, I had no problem removing and getting a clean four holes to install the CN2 header.
this is super useful! I'll have to do an OBD1 conversion on my crx sooner or later if I want to do any tuning. this is helpful.
Thank you this will be part of a bigger series of the cheapest tuning options. My other P28 started to act funny so I said why not i have the time and ability
where can i buy one of these cn2 4 pin latching headers ? any local stores etc
Online
@@DIYKAI got a link please
hey man, i measure 5v at pin2 and pin3 of my P08, when it should only be pin3. How do i even begin diagnosing this?
It needs to be bench tested
What does the flux do and how did you confirm it was a success after the fact, visual inspection ?
Flux allows solder to flow easily and makes the joint clean., Bench test, then vehicle test. Thanks for watching and please subscribe!
I have the same part you installed but my moats 4 pin cable doesn’t plug in with it. Is their a 4 pin wire that u use differently from moats to do data log.
4 pin Dupont cable should work fine
@@DIYKAI do you have Instagram i could send you some pictures because I have 3 ecu with 3 different 4 pin cn2
Kustommodifiedracing
@@DIYKAI okay. Pm you now
this is with chipped ecu i assume?
Yes you would need to chip the ECU
Thanks for watching and please subscribe if you haven't already
@@DIYKAI are you very familiar with honda obd1 ecu? And I subscribed almost immediately, very few honda obd1 ecu videos I can find.
Thanks and yes I am I repair them
DIY KAI do by chance know the pinout of ic17? on the component itself its labelled ta8903sn. i believe most if not all obd1 ecu had them. no datasheet can be found by my searches.
Can you rebuild mine?
Yes do you have facebook?
@@DIYKAI yeah you got a page or something?
Yes I do facebook.com/kustommodifiedracing/
Send me a message I will get you taking care of. Thanks
Can i datalogging without chipping?
Not that I am aware of it may be possible but chipping the ECU unlocks it's full potential
@@DIYKAI i just want to look some parameter value... Is it possible?
No you will need to enable datalogging, have a chipped ECU, and tuning software
@@AmriYusron354 I have many videos on the Honda ECU and more coming check them out and subscribe if you have not already. Thanks
@@DIYKAI okay. Thank you very much