When the my 1991 4runner is cold first thing in the morning there is a slight hesitation in acceleration. I have tried letting it warm up for 10 mins but still there is a hesitation, i was wondering if it could be a mass airflow sensor issue or my injectors. Any answers or suggestions? Thanks, this is my daily driver and I am broke, would appreciate any help at all. I am also new to this site, let me know if you need any more info on the problem or specs.