The PCM is looking for a glow plug control module......you don't have one of those, you have a relay.
Take the chip out (I don't need the switch), put it in a box with a note that has your RMA number on it, and send it back to us.
I'll put the correct tunes on the chip and send it back to you the same day with a refund on the shipping charge to get it back here.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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