hey guys i got got my 383 in and was running on stoct tune, ran farirly well, but today out of no where car wont idle, stumbles hard, runn like total hell, it threw codes po335,po 336, p1361, so let me know if it is bad or not

 

The P1361 code is for the ignition control module. The other codes are for a bad crankshaft position sensor. Might want to double check the electrical connections to those and make sure they're all right.

 

so would the ignition code make it run like crap or would iit be the crank sensor, i just put on a msd ignition box could, could a bad connection cause this , im just trying to narrow it down,

 

The crankshaft position sensor isn't causing your problems. All it does if flag down misfires. Normally if the ignition control module goes bad it causes a no start condition, so i'm not sure if that's the problem or not. Maybe someone else will chime in on this.

 

wondering if it might be the coil ?? checked all connections with msd , and all looked good so im stumped

 

ttt

 

Check fuse #11 underhood, it's the 10amp fuse labeled Ignition. Then check connector C100. It's the black 10 pin connector at the PCM bracket. Pull it apart and check the pins on the pink wire. If all that looks good, plug it all in and turn Key on engine off KOEO and check the pink wire at the ICM and CKP for 12 volts there.

FYI, both the ICM and the CKP get power from that pink wire that is supplied from the ign fuse.

 

thanks alot will check that out today, hopefully its something easy like a fuse

 

def check that fuse... my car did same thing one day.. ended up having to get it towed... shop calls me up after 5 min says the fuse was blown and charged me 150$

 

checked fuse and looked good as far as i could tell, so still stumped and scared to drive it any where,

 

well i tried to drive it home,still running like crap and was decelerating down a hill when i heard a loud bang and a friend that was behind me said that the car launched out tuns of fire out of the exhaust, and then car died and will not start. any help would totally be awesome thanks alot

 

First of all not to be Mr. Obvious but the loud bang with flames is really bad. How hard were u on the throttle at the time? Check to make sure that a couple of things are right. First of all check the timing. Check to make sure you are getting sparking. You should then make sure that your fuel injectors arent stuck open. Take out a spark plug and see if it is covered in gas. Make sure your getting fuel. Spray a little carb cleaner into the intake and see if it fires up for a second. Check engine codes again see if there is anything new. If all that doesnt work I am clueless.

 

Oh and since nobody has mentioned it yet, get the damn thing tuned!!!

 

So did you check the 12 volt line at the ICM and CKP for intermittent connection yet?

 

yes i did check the 12 volt connection- it was good, checked fuel pressure its at 48, got good spark, spark plugs look good, just a little wet, and i thought it might be the coil so i unhooked the battery-and erased the codes like a dumb A$$, but im stumped so im gunna take it back to the shop that built it and make them fix it, free of charge and also get it tunned.
well thanks alot for your guys input it was greatly appriciated