okay gang I'm hoping someone here can help
I get a misfire and I need to know where to look I ve replaced wires coil pack battery plugs,

Now the misfire come in hard and CEL flashes w/MSD dis-2 hooked-up
by-pass the msd the mis is not that bad.

heres my set-up

420a
8.5:1 forged pistons
vortec sfmu
hahn turbo system fmic system @ 18 psi
MSD dis-2
motorcraft 440cc injectors

all the connection wires on the msd appear to be in good shape

could there some other source where i would lose injector pulse or trigger ?

the car did run like a bat out of hell for a year then the other day i got CEL 43

thanks

Hahn,Wiseco,Eagle,MSD,TurboXs
K&N,mopar,AEM,Greddy,Vortex,apexi and a bunch of other stuff..

well seeing as how the MSD seems to be crapping out on everyone this month I suggest keeping that off for a while and resetting the ECU and see if it goes away after a plug wire/plug change

1998 dodge avenger 4 cyl AT
Mods are:
Not enough

where is your msd located? i have read a lot of people with their msd box in the engine bay are having problems. i put mine under the passengers seat and so far good to go.

1996 eclipse GS-T
1968 Ford Mustang
2004 Suzuki GSXR600
2006 Honda CBR1000RR
Decisions Decisions

yeah seems like the excessive underhood temps just cook that MSD unit.

1998 dodge avenger 4 cyl AT
Mods are:
Not enough

yup under the hood,,,so that must be it I'll send in for repair 80 bones

Hahn,Wiseco,Eagle,MSD,TurboXs
K&N,mopar,AEM,Greddy,Vortex,apexi and a bunch of other stuff..