After engine swap the car will not accelerate past five MPH?

2014 NISSAN ALTIMA
140,000 MILES • 2.5L • 4 CYL • 2WD • AUTOMATIC
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ROBERMUDEZ
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The car had a bad engine, so I got the engine swapped. The car would run fine before engine swap. Now that the engine has been swapped it won't pick up speed. I hold the pedal down and it just doesn’t go above 5 MPH. What could be the problem?
Jun 27, 2023 at 1:46 PM
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JACOBANDNICKOLAS
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Hi,

If you place it in neutral or park, does the engine rev normally? Also, have you scanned for diagnostic trouble codes?

If you haven't checked for codes, that is where I would recommend starting. Actually, I would suggest scanning the can-bus.

CAN stands for controller area network. Basically, the different modules are tied together via a few wires. This type of scan will retrieve codes regardless of the module storing a code.

Here is a link that explains how it's done:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Also, when it is running, let me know if there are any odd odors from it or sounds.

Let me know.

Joe



Jun 27, 2023 at 8:27 PM