TXjeepTJ

iTrader: (8)

2 nights ago i was leaving a neighborhood, i went to turn the jeep on(ls1 in the jeep) and i didnt crank it far enough for it to start, it made a weird noise then died. then i re-cranked and it fired up but started idling very bad, i drove it for about 20 seconds and then it died. it wouldnt start back up after this. the next day i put some 'super' gas into it, and it starts up about 5 crank attempts later, but runs horrible and eventually dies

after this, i can start it up each time- but it dies. the next day i go and attempt to start it and it doesnt fire up at all- cranks, but nothing. i spray starting fluid into the TB, nothing. 20 min. later it starts up, runs like crap then shuts off- i cant get it to start anymore

since then, ive replaced the crank position sensor and ignition relays. its getting fuel(55-60psi checked) at the fuel rail. it doesnt seem to be getting spark, but yet it will randomly start up after 100 attempts(but idle bad)

any thoughts?

TXjeepTJ

iTrader: (8)

it was the MAF sensor, once i unplugged it, the engine ran like a champ