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So my 4runner started to drag a bit when starting (vrrrrrrrooon). Had battery checked, 5yrs old, not good. Replaced with a new one. Simple change out, right? Well now when i try to accelerate, it bogs down. Idles fine in Park. Was running perfectly fine, aside from the slow start, before the battery change. Cleaned throttle & air intakes, no improvement. Any ideas or thoughts?
 

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When u disconnect the battery the ECM has to relearn some parameters.
It may take 30 min or so of driving to do it.

Or it could be something else. Have you checked the battery voltage with engine running?
It should be 14V minimum
 
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jetwhine
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