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<
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Lastly if you are wanting to convert Auto to manual remove the resistor RP18 '472' on the back and replace it with a 1.4K or 1.5K resistor. Shown in bottom right of the picture.
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Lastly if you are wanting to convert Auto to manual remove the resistor RP18 '472' on the back and replace it with a jumper wire. Also remove RP17 and leave it open. A/T resistor layout shown in bottom right of the picture. |
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Add C49 & C50 and C91 & C92 on back
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Add C49 & C50 and C92 on back. C91 is on the front by the latch
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The Above picture is untrue, many A/T boards need the latch and the socket. As there are different variants of the JDM P30 Board
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For RTP/Datalogging w/ Crome remove J4 on front.
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For RTP/Datalogging w/ Crome remove J4 on front. (J4 is a 000 resistor)
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Lastly if you are wanting to convert Auto to manual remove the resistor RP18 '472' on the back and replace it with a 1.4K or 1.5K resistor. Shown in bottom right of the picture.
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| Changed: |
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C49 & C50 --> .004UF
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C49 & C50 --> .004UF (Digikey part number 399-1230-1-nd )
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C91 & C92 --> .00001UF
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C91 & C92 --> .00001UF ( digikey Part Number 399-1192-1-nd ) |
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Add the 74hc373 SMD chip.
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Add the 74hc373 SMD chip. (MFG part# SN74HC373NSR, Digi-Key Part Number 296-8310-1-ND) |
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| Added: |
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%META:TOPICINFO{author="LegoZ81" date="1110569760" format="1.0" version="1.1"}%
%META:TOPICPARENT{name="IntroductionToECUChipping"}%
You will need bridge J1 on the back of the ECU.
Add C49 & C50 and C91 & C92 on back
C49 & C50 --> .004UF
C91 & C92 --> .00001UF
Add the 74hc373 SMD chip.
Add a 29C256 eprom with bin written to it.
For RTP/Datalogging w/ Crome remove J4 on front.
Solder in a 4 pin header (snappable header pins 1x40 work GREAT for this and are VERY cheap)
All info is from the following threads:
http://forum.pgmfi.org/viewtopic.php?t=3112&highlight=chipping+jdm+computers
Special thanks to all the contributors of the above thread and katman for doing the pics in
the first place... We love you katman :)
http://forum.pgmfi.org/viewtopic.php?t=4005&highlight=chipping+jdm+computers
Thanks to infotechplus for pics and info on C49,C50,C91,C92 |
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