2015 4runner p0300 code, miss at idle only. Starts and moves fine.
What is your question?
Starts and accelerates fine, no miss at speed. No shifting problems. Idle gets rougher when warmed up. 251086 miles on vehicle, about 40000 on plugs and air filter. Everything else factory original, cleaned maf, no change. Miss is very random, might be two or three in a row, then one every half minute or so. In gear or park/neutral makes no difference, miss at idle.
What makes this problem better or worse?
Gets worse as engine warms
How long has your 2015 Toyota 4Runner had this problem?
RepairPal Certified shops can diagnose and repair your 2015 Toyota 4Runner. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Professional quality scan tool that has live misfire data is requires - otherwise it’s a guessing game!
Scan tool monitors misfire data and displays it on screen - once the misfiring cylinder is found then subsequent *hands-on* testing will reveal the culprit.
Good luck!
