Archive for February, 2010

1992 – 1995 JDM Honda Computers Performance Chip Installation

This covers the Honda JDM “P72“, “P30” and “P08“.

Installing a performance chip on 1992-1995 Honda JDM computers uses the same method as described on other posts on this website. You may use the search function above for those other publications. What differentiate the installation on JDM ecus from USDM, Canadian, European, Australian and some others, is the need of installing Surface-Mount-Devices (SMD’s). The same installation kit of the P28 and other OBD-I Civic / Integra ecus is needed, but the parts are smaller. These parts are; the 74HC373 chip, the “J1″ jumper and the two bypass capacitors, which instead of being a through-hole mounting devices, these are soldered on the surface of the circuit board. They are smaller and a little bit more difficult than their counter parts, but still, it is a simple job. The resistor “R54″ is not needed on this installation and the two capacitors are optional, so the jumper and 74HC373 latch chip will be depicted only.

Here is a picture of the 74HC373 SMD Chip

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1988 – 1991 Honda Civic / CRX Performance chip Installation

This is the following Honda ecu computers: PM6, PW0, PR3 (OBD-0) and PR4 (OBD-0).

Installing a performance chip on 1988 -1991 Honda Civic / CRX is a single procedure that consists of removing the stock chip, soldering a socket in place and inserting the performance chip on the socket. This instructions are similar to the instructions for installing a performance chip on OBD-I Accord and Prelude elsewhere on this website.

Different from the OBD-I Civic and Integra ecus, which you must add Read the rest of this entry

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1993-1995 Accord – Prelude Performance Chip Installation

This applies to the following Honda ecu computers: P0A, P0B, P0C, P0H (OBD-I), P11, P12, P13, and P14.

Installing a performance chip on 1993-1995 Honda Prelude and 1994-1995 Accord is a single procedure that consists of removing the stock chip, soldering a socket in place and inserting the performance chip on the socket.

Different from the OBD-I Civic and Integra ecus, which you must add some extra parts, the OBD-I Accord and Prelude ecus do have a stock chip that can be replaced, making it simpler in a way, but tougher at the same time in another, because you will need to Read the rest of this entry

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Honda Stock Ignition Timing

When installing a performance chip, most of the times it is required that the distributor ignition timing be at the stock setting. This is brought here, because prior to installing a chip, many car owners, often do a manual timing advance (global setting) in an attempt to make more power out of the engine. Other times, it is caused because of a mechanical fix that required removal of the ignition assembly and it is left unadjusted when it is installed back.

This should be reverted if a performance chip is used, since Read the rest of this entry

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Gun Powder on 87 Octane

Well, I have heard one of the craziest proposals on racing. People suggested to maybe use gun powder to boost low octane gasoline…

Well, the truth is that damage is imminent, but how big, will depend on what gun powder you use.

Before clarifying, first of all, gun powder is Read the rest of this entry