Missfire in cylinder 4 Help!!

[REDSRT19]

Ok i have replaced the spark plugs, spark plug wires, and the coil pack. The car is still missfiring badly. I have an aeroforce gauge and it showed me that cyl#4 was missing at least 30 times a minute. What else could be the problem? I was thinking that the cam position sensor went bad but not sure and dont want to spend more money on something thats not broken. Please help!!!

Also there is no trouble codes that pop up for missfire. I would think there should be. In that case would the ecu be bad?

[SlowmoSrt4]

might be your inj i had that with my #3 and i cleaned and flow tested my inj and it seemed too work. Where ddi you pick up your aeroforce and how do you like it?

[conroy9940]

he probably got it from realtune or aeroforce on these forums

[nutz]

double check your gap, and check to make sure all wires and plugs are secured tightly, then look for your ground (pass rear of head) make sure its in good shape then add another (just for good measure)

[REDSRT19]

Quote: Originally Posted by nutz

double check your gap, and check to make sure all wires and plugs are secured tightly, then look for your ground (pass rear of head) make sure its in good shape then add another (just for good measure)

You were right it was the ground, Thanks man!!!

[REDSRT19]

Quote: Originally Posted by SlowmoSrt4

might be your inj i had that with my #3 and i cleaned and flow tested my inj and it seemed too work. Where ddi you pick up your aeroforce and how do you like it?

I got mine from modernperformance. Whenever i need to get parts i always go there first. Great ppl and customer service, and it takes little time for your parts to arrive.

[rwright]

i recently had misfire on #4, then it randomly changed to #1, #3, and #4. changed plugs, nothing, swapped wires, nothing. bought a can of seafoam, bingo! bad gas. now my fuel pump is screaming at me.