Q: Q: Codes

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What you think—is this oil? I have these codes: PO741. Torque converter clutch circuit performance stuck off. Transmission control module TCM. Ignition advanced.

With all those codes the odds are that you have an electronic problem. With those that you have in particular, it can easily be a transmission control module (TCM). TCM is a problem. Have a mechanic give that component a full inspection first. You will want to get this checked sooner than later to prevent more damage in the future.

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