chucks ss

iTrader: (8)

im having a cylinder misfire and after scanning it the codes thrown were translatedto this multiple cyl misfire
po351- ignition coil a
po353- ignition coil c
po355- ignition coil e
po357- ignition coil g

nowim guessingonewhole side is out for what ever reason ,justput in new plugs thought that was it before scan , so is it one side and if so which side is it , it only does it at cruising highway speed , not at idle so which side is a,c,e,g ? please help and thanks imstaying up in my garage all night till i find out so i can get another set and if you would know why one whole side would go out at once please all your input , thanks im standing by

j_s926

the driver side

chucks ss

iTrader: (8)

thank you friend

chucks ss

iTrader: (8)

anyone haveany idea why onewholeside would go out ? is that common ?

Intimidator02SS

Check your main connection from your wiring harness to your coils. It is between number 3 and number 5 coil if i'm not mistaken. If its been unplugged before it may have come loose if you didn't put the safety latch back in place.

Black Sunshine/ 00SS

iTrader: (1)

I had that problem once, and narrowed it down to the main plug to the coils. Water had gotten in there, and there was buildup from moisture. The easiest way to determine if it is the connection, or not, is to switch the coils from one side, to the other, and see if you still get the same codes, or if it switches sides.

chucks ss

iTrader: (8)

i will do that hopefully its just the main plug , if it is can i just clean it up ? actually ive been having this cyl mis fire on and off for awhile and it never happens under load only cruising speed on or off the highway