Troubleshooting help

[bkstang95]

I've been chasing (what i think) is an ignition issue...Took the car out last Sunday and drove PERFECT, decided to take it out for a drive around the block on Monday and by the time i got out of the neighborhood it had developed a misfire and is backfiring in the exhaust.
Since then i have put new plugs and a new coil in to see if that was it...the plugs are new and only have dyno time on them...

I need some help here...I am missing events left and right bc of this issue and am just getting frustrated! haha

[mustangjon]

Tfi would be most likely culprit and fairly cheap to replace if its ignition

[bkstang95]

I should mention using BS3 standalone using a crank trigger.

[Gearhead]

I should mention using BS3 standalone using a crank trigger.

I'm not familiar with Bigstuff 3 or crank trigger systems, but are you using any MSD ignition parts ?? Seems like a high failure rate with them lately.....

[bkstang95]

I am...6AL...would a bad box cause this you think??

[Gearhead]

I am...6AL...would a bad box cause this you think??

I would think so, can you bypass it ??

[bkstang95]

I'm not sure I know how to do that, i'm trying to track down a working one to see if that is my issue.

[bangingears]

check air gap on crank trigger, make sure engine grounds are good, maybe a rocker arm has loosend (sp) up??

[bkstang95]

Just checked the grounds...seem ok, but where should they be on an sn95 car?

I checked the rockers earlier...seemed ok to me.

[mustang8998]

I've got 2 6AL boxes, if you want to swap them out. One I know is good, the other I'm not sure, but you are welcome to try them.

[bkstang95]

Thanks, Jeff! I may have to take you up on that offer. Ill shoot you a pm if i go that route.

[Blowpastyou]

Are you using a locked dist. for cam sync? If so un-plg it and see if it gets better. Next step is get rid of the 6al and get a good digital ign. Also definitely check air gap on crank trigger. Also Check it in 4 or 5 places. The msd crank trigger wheels are. Never perfectly centric.

[bkstang95]

I'll check the crank trigger out as a possibility. I just can't see that all of the sudden be the issue overnight, but I'll double check.

Thanks for the suggestions, guys! I'll keep on it

[2Fast4You]

If you are using a Rev Limiter chip or switch in the 6AL take it out and see what happens. I had a similar issue back in the day. Check the distributor internals and cam gear if that is the set up you are using, have had issues with that stuff as well.

[Adam@S&MMotorsports]

Double check the rotor phasing. Also make sure the distributor is still locked out, we sheared a pin in Smack's car last year and it shot sweet fire balls and shit out the rear. Give me a call if you want, PM's take too long :lol:

[bkstang95]

Soooo...a little embarassed to say the least, but ended up being a stupid fucking plug wire...It was one that i didn't take off and switch with another one bc it looked fine and had a boot on it...well, it was burnt through underneath the boot! FML!
My buddy's exact words when i pulled the boot back and saw it: "DUDE! THAT WAS THE FIRST FUCKING THING I TOLD YOU TO DO!" lol

[5.0calypso93lx]

So does it run ok now?

[DSSKing68]

KISS....and we all know what that stands for.

Hope it is running good for ya now though.

[bkstang95]

Ya ya ya! :lol:

yeah, gotta get with Adam again to make sure everything is good to go now after the converter swap!

Good news is, i don't see a reason why I can't make the cruies-in now!