How I Fixed My Tacoma's Trailer Issue with a Simple 7-Pin Plug Tweak

Rico's4G · 2025-08-30T06:36:04+00:00

Wanted to have a discussion on the kind of gas other Taco owners use for their trucks. I'm well aware that the electronic control module in most Toyotas is tuned for 87 octane, which is peak efficiency. Higher octane gas doesn't necessarily improve performance. Instead, octane ratings indicate how resistant the fuel is to pre-ignition. Also, I think modern engines have sensors that can help prevent pre-ignition, but there's still a small chance it can happen. Just an open discussion, let me know what kind of gas you use for your Taco.

h4ngman tacoma

Member

Jul 30, 2025

Has anyone had a similar issue with their truck like the one in the picture above? When my truck first developed this issue, I tried everything, even going in and removing my trailer from the selection, but it didn't work. Later on, I found the solution, which wasn't that much of a big deal.

First, you have to check the 7-pin plug. Now the center pin has a spring-loaded sensor. Try wiggling it to get the sensor to seat correctly.

Once you can do that, you're good to go. That resolved the issue for me, so I believe it'd work for anyone having a similar issue too.

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