This is the frist time i have ever see seafoam do this to any of the cars i done. .... So the problem i have is the seafoam acting up on my girlfriends truck toyota tacoma 98 truck 2wd. I have use seafoam on over 10 honda and i love it works great. but some how i used it on my girlfriends toyota with 150,xxx mile and yes it did make it faster and drive better, but after a few min later when the oil/filter/spark plugs were change it started idling weird from 500-1000 rpm goin up and down, and it sounded like a built v8 lol . The motor vibrate a lot. What do u guys think it is ?
Thanks in avdance

 

sounds like the either it loosened up some crap and it got in the tb, or some **** got caught in the IACV screen

 

How would i fix that ?? ... i was drivin it to portland today and out of no where the check engine light come on . should i try to clean it out again with seafoam or is there a product i can but to clean it. cuz i have a good feeling the check engine light is for some kind of sensor