sc2dave Posted July 28, 2023 Share Posted July 28, 2023 '94 GS300. I put the jumper wire to the diagnostic port and when i use the timing light I notice that the timing mark is the same as without the jumper. I see that there's 2 marks on the pulley. Also, I do the jumper wire and I don't get any blinking light to see what codes are, it just stays steady. Is there another way to access codes from ecu? thanks Quote Link to comment Share on other sites More sharing options...
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