#3 cylinder misfire

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#3 cylinder misfire

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Mitsubishi Forum >> Tech Help and Information >> Nitrous, Super Chargers, & Turbos >> #3 cylinder misfire

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#3 cylinder misfire - 7/21/2007 5:10:17 PM

ck76

Posts: 33
Joined: 7/21/2007
Status: offline

hey everyone... i have a 98 eclipse and i have a #3 cylinder misfire. i have a msd ignition & wires. i pulled out the old plugs,,they looked good by were cheap ass champions so i installed new ngk plugs but am still having a missfire. eng light is flashing.......pleaase help me!!!!!!!!!!!!!

Post #: 1

RE: #3 cylinder misfire - 7/21/2007 5:48:59 PM

Kaede.Noir

Posts: 1818
Joined: 10/10/2006
Status: offline

By ignition do you mean the coil pack? if you have the amp, maybe you fried it? check the pack, no prob with the plugs

_____________________________

''98 2g 420a
-Custom Aluminum radiator
-Short ram shroom intake
-No rice
''83 GTI 1.8 *SOLD*

"the boat is gone, but now we got this huge gaping hole in the fence"

(in reply to ck76)

Post #: 2

RE: #3 cylinder misfire - 7/21/2007 6:57:10 PM

ck76

Posts: 33
Joined: 7/21/2007
Status: offline

i have the msd coil pack. what is the amp????

(in reply to Kaede.Noir)

Post #: 3

RE: #3 cylinder misfire - 7/21/2007 7:33:15 PM

ck76

Posts: 33
Joined: 7/21/2007
Status: offline

i've done a few thread searches and it sounds like the coil goes out alot on the #3 cylinder???? do i have to replace it of just clean the terminal?

(in reply to ck76)

Post #: 4

RE: #3 cylinder misfire - 7/23/2007 12:07:18 AM

Kaede.Noir

Posts: 1818
Joined: 10/10/2006
Status: offline

you could try cleaning the terminal, the amp, is kinda like a sound amp, but made to push in more volt through the coil (if my memory serves right) and, yeah... somehow it does... in the 420a, which engine you have again?

_____________________________

''98 2g 420a
-Custom Aluminum radiator
-Short ram shroom intake
-No rice
''83 GTI 1.8 *SOLD*

"the boat is gone, but now we got this huge gaping hole in the fence"

(in reply to ck76)

Post #: 5

RE: #3 cylinder misfire - 7/23/2007 8:56:11 PM

Joshewuhh

Posts: 1741
Joined: 1/11/2007
From: The south
Status: offline

One other thing to check is fuel to the cylinder.
You might have an inkector not spraying.

_____________________________

Neah...

(in reply to Kaede.Noir)

Post #: 6

RE: #3 cylinder misfire - 7/23/2007 9:13:33 PM

ck76

Posts: 33
Joined: 7/21/2007
Status: offline

well today i took it to my work (i manage a auto shop)not ignition related,,,coil is good, splug & wires good. swaped out my msd for new/stock parts and got the same prob with the motor 420a...... this is what i thing,,,,,, it has a turbo 8lbs of boot, nitrus, reprogramed ecm & diff fuel inj & 2 stage fuel pump,,,under low to med accel. the car runs good,,,,under hard accel the car starts to sputter like it is starving for fuel???? i think the inj. on the #3 cylinder might be getting cloged up when the 2nd stage fuel pump engages?????? the car has a good idle and seems to run great at low rpm's

(in reply to Joshewuhh)

Post #: 7