Differences

This shows you the differences between two versions of the page.

--- buzzingout2gsocket [2008/01/23 09:43]
76.100.119.159 created
+++ buzzingout2gsocket [2024/03/15 11:16]
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-====== Overview ======
-With a 2G ECU, when removing the EPROM it's entirely possible to damage a track on the top of the board and still allow the engine to run, but cause a number of malfunctions.
-If the engine runs, it indicates that the connections between the processor (IC1) and the ERPOM are okay.
-====== Details ======
-Check for continuity of the tracks to the EPROM as follows (note that there is a 100 ohm series resistor between EPROM pin 22 and IC2 pin 44):
-||EPROM||IC2||IC1||Notes||
-||01||25||63||||
-||02||28||60||||
-||03||34||55||||
-||04||35||54||||
-||05||36||53||||
-||06||37||52||||
-||07||38||51||||
-||08||39||50||||
-||09||40||49||||
-||10||41||48||||
-||11||45||11||||
-||12||46||12||||
-||13||47||13||||
-||14||||||GND||
-||15||48||14||||
-||16||49||15||||
-||17||50||16||||
-||18||51||17||||
-||19||52||18||||
-||20||||||GND||
-||21||30||58||||
-||22||44||||100 ohms||
-||23||29||59||||
-||24||31||57||||
-||25||32||56||||
-||26||27||61||||
-||27||26||62||||
-||28||||||+5V||
-Pin numbers for IC1 and IC2 are printed on the PC board. The EPROM pins are numbered as follows:
-{{http://www.dsmlink.com/images/forums/m27c512.gif}}

ECMTuning - wiki