Knock knock. I have a built in 98 but sold as a 99 ford f150 off road xl. The 99 knock sensor won't bolt up to the engine but fits the plug. The 98 knock sensor fits the engine but not the plug. I wanna say i vaguely remember unplugging the harness from near the firewall to a knock sensor but the issue im having i can't say that i did. Its the only thing im finding out of place at this point and the only sensor not adding up so before i splice a pig tail does anyone have info on something i may have missed?


Square peg don't fit round hole smh