The problem is these are very hard to insert and remove the chips since there are 28 pins (it requires a lot of force and is hard to grip the chip). You have two options: for less than $1, you can get a standard DIP socket. Instead, use a socket so that it can be removed. Since it would be impossible to burn a chip and have the tune be perfect, it becomes obvious that you don’t want to solder the chip in. Pin 1 will be on the left side of the pic (you’ll see in detail later one). The resistor and capacitors have no polarity, so you don’t have to worry about installing them backwards. This part of our How To Chip Your Honda ECU will require you to add onto the board itself. 1uF ceramic capacitors, (1) 1k resistor, (1) wire jumper (simply a piece of wire…I used a lead of the resistor), (1) 74HC373 chip, and (1) 29C256 chip (thats the EPROM). The parts that need to be added are boxed in with a dashed white line. Here is what it should look like after the board has been de-soldered: The important thing is to not use too much heat, and also make sure the iron has a fine tip on it. You’ll want to use a decent quality soldering iron to get the job done nicely. It will then wick up the solder into the braid. Simply place it over the hole to be de-soldered, and place the soldering iron on top of the braid. The cheap and easy solution is to buy some solder braid. You can buy a “solder sucker” to do the job, however unless you get a nice one (expensive) they don’t really work well in my opinion. Here is a picture of the P28 ECU that’s been chipped, before any of the parts were put in:īefore you can solder the parts in, you will need to de-solder the holes in the circuit board since they come filled with solder from the factory. (Chances are you know someone with soldering skills that could help you). It requires some soldering skills and should not be attempted unless you have soldered before. In order to use Uberdata, you need to add a few additional components to the original Honda ECU. These are just a few resources available to assist you on your quest to learn How To Chip Your Honda ECU. For more (a lot more) info on modifying Honda ECU’s in general, visit. There is also a message board there to search for questions that have already been asked and answered by others.
#HONDA P28 CHIP WRITER HOW TO#
This page will explain how to chip your ECU as well as the basic process of burning a ROM chip.įor more information on Uberdata, visit the official site here. In order to do this, you need an OBD1 vehicle, and a “chipped” ECU such as the P72, P28, etc etc. Uberdata allows you to program your own ROM chip with custom maps.
#HONDA P28 CHIP WRITER SOFTWARE#
For the sake of this article, we will be lumping in all of these different types of Windows software into “Uberdata” from this point onward to prevent repeating ourselves over and over.Īll of the fuel and timing maps in your ECU are stored in a ROM chip (Read Only Memory). The software that most people use to alter the values in their ECU can range, but most of the “free” solutions like Uberdata, Chrome or Neptune are very easy and straightforward to use.
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