I started with an 83 5.0 F car auto trans ecm and calibration, then switched to an 84 5.0 F car ecm, then switched to a 1227747, and currently run a 1227427.


Changing fuel pressure always made a...

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First thing, if you haven't done it, is to balance the TB's and make sure the TPS is sending the correct voltage it idle. Confirm fuel pressure is in range as well. With...