I drive a 2002 gt. I was getting groceries today and everything was fine driving in, got back in the car to go home and it was vibrating like crazy and misfiring. I happened to be near a parts store so I checked the codes. Heres what I got:
p0128 (twice)- Something about the coolant temp being too low? I never replaced my Thermo on this car I'm thinking maybe its time.
P0300- Random multiple cylinder misfire
P0420 (twice)- below catalyst efficiency threshhold yada yada; I've had this ever since I replaced my cat with an aftermarket one someone suggested I add a spark plug defouler or some jazz to get rid of this.
P1811- Maximum adapt and long shift- something about taking too long to shift. This one confused me a bit my fluid was slightly low so hopefully topping it off will help
P0306- misfire cyl. 6
About a year and a half ago (when I got the car) I had a clogged cat. Before figuring this out I changed the plugs and wires. Not sure if this is relevant but the car was outside for the blizzard, it seemed fine during/after the storm. I cleared the codes when I got home, took it around the block and the only one coming back is the P0306. I'm thinking bad coil? I'll take a peak at the plug anyways. Probably wont be trying to fix this until tomorrow or the day after but any tips or advice is greatly appreciated. Thanks in advance.