[T3] 73 type 3 ECU/pin 14 ?

William Jahn willjahn975 at gmail.com
Thu Aug 15 12:50:39 PDT 2019


I know that pin 14 was used for the EGR system which I don't have for
years. I noticed ECUs before didn't use #14 yet had the 5 pin TPS. ON those
TPS pin 14 was a ground . I wondered if anyone with a 73 that had the EGR
just leave #14 connected or what it does in the ECU . I even removed the
relay since it only controls the EGR valve via a thermal switch mounted on
the ECU and the TPS position . It's also tied into #14 and #17 on the TPS
at the EGR relay plug.

William
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