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Old 04-28-2020, 09:17 AM   #1
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Join Date: Mar 2019
Location: San Juans / 10000 Lakes
Posts: 79
7.3 CPS and MAP Sensor 94-98

Just changed out my CPS and MAP sensors on my 1998 7.3 van (1997 motor) and saw a big improvement in performance, less cackle, and motor noise. The CPS in my van was the gray recall replacement. I replaced the CPS with F4TZ-12K073-C (https://amzn.to/3eYT81s). The MAP sensor in the van was F4TF-9S480-AA. I found a service bulletin TSB 94-23-15 from away back that said replace this with F4TZ9F479A (https://amzn.to/2YaewuV) for lack of power towing or black smoke at altitude. After swapping out the MAP its reading on my ScanGuage dropped 2 bar and the motor is fueling more evenly.
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1998 E350 7.3 Hightop
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