You don't necessarily have to get it to run to read codes sent out by the ECU/ECM, just putting the key in the 'on' position can (not promising 'will') do the trick. For using the paperclip method the engine is to be left OFF. I had went thru this on a '93 3000gt & was able to figure it out by reading the long & short bursts on the analog meter. See:
http://web.archive.org/web/201212011...codes91-93.htm for basic idea instructions BUT you will need to find the pins & fault codes that match up w/the ECU you are working with. Highly suggest letting it tell you whats wrong if it will rather than chasing a likely combination of issues. Good luck
Originally Posted by tink
You don't necessarily have to get it to run to read codes sent out by the ECU/ECM, just putting the key in the 'on' position can (not promising 'will') do the trick. For using the paperclip method the engine is to be left OFF. I had went thru this on a '93 3000gt & was able to figure it out by reading the long & short bursts on the analog meter. See: http://web.archive.org/web/201212011...codes91-93.htm for basic idea instructions BUT you will need to find the pins & fault codes that match up w/the ECU you are working with. Highly suggest letting it tell you whats wrong if it will rather than chasing a likely combination of issues. Good luck
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