yeah so i messed my car up real bad.. so i was wondering if i can get a little input... i was driving down the parkway bc i was running late and i hit about 115 for like a 10 mile stretch.. and then i realized i was doing about 95... but the car was running rough as hell by the time i got off and got it towed to my house... so i got a new coil pack.. and still ran the same... i took the plugs off of each spark plug one at a time and restarted the car.. when i took the plugs off in the 1 & 2 spots (both on the left side of the coil pack) it ran the same and on the 3 & 4 it ran even rougher.. i even bought new spark plugs.. any ideas on what i did


if its easier i have a parts car with a relatively new engine in it.. w 70K miles...

 

also the spark plugs were dark as hell and smelled like raw fuel... and the number 2 spark plug was chipped and there was some carbon on it so im assuming it was gapped as well......

 

If 3&4 are the ones running rought look there. If you chipped you plugs something happened. Get you compression and leakdown compression checked and make sure your internals are good. Then look at your spark plug wires to make sure they are in god order. Should be 5K-6K Ohms per foot (Unless you have MSD or others like it the less of course).
Then if all is well check in on your injectors like changing 1&2 with 3&4 and see if the engines runs better on the other side this time.

 

it sound like your signal from the ecu is fine it must be some where between the coil and the spark plug you might wanna check that all the injecter are working just unbolt the feul rail and point the injecters in the air and have some one crank the the car and check if all four squirt

 

yeah.. it sounds like a dead cylinder...when swapping the engine.. would i pick the engine up out of the engine bay or use a liift and unbolt everything and lift the car over the engine?>?