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  1. TeCKis300

    DIY Fuel Pump Replace

    Good to hear you're making progress! Learning is pretty quick. Once in closed loop, the short term trims will take effect immediately to get to stoich or target A/F ratios. With learned long term fuel trims taking effect not long after with to offset some of the short term trims. The...
  2. TeCKis300

    DIY Fuel Pump Replace

    P0453 is not one I've dealt with before. So take my comments with a grain of salt. These would be my suspicions Sensor or wiring to sensor malfunction. You can use a scan gauge on OBD-II to read the output to understand if this is possibly failing high? Referencing a snap of my OBD Fusion...
  3. TeCKis300

    DIY Fuel Pump Replace

    Curious how long it takes to remove the interior pieces to get at the access cover? The time to do that is what discouraged me. From the bottom, it's 7 bolts, 5 lines, and 1 plug, all readily reachable. 30 minutes if I were to do it again. There's no need to remove the fuel lines from the...
  4. TeCKis300

    DIY Fuel Pump Replace

    Replaced a fuel pump recently as part of resolving an idle fuel pressure issue. Diagnostic thread here: https://forum.ih8mud.com/threads/p0171-system-too-lean-fuel-trim.1289672/ Didn't find much documentation on this site so here's my attempt for future reference. Couple strategies to do...
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