FLOODING ON START UPS

[porscheman930]

I have 93 240 that has a newer black top swap. the car never starts and ends up flooding out. fighting and fighting blowing out the cylinder with shop air i got it started twice. the first time it ran for 15min then fell on it face and died. the secound time got it started cracked right up holding the revs a 4k the car random dumps fuel then revs back and forth to 4k runs smooth for a few secounds or a min does it again. the car was running a day ago before taking the head off to fix a striped bolt and sense then been doing this. timings good, fuel pressures good, o-rings on injectors good, must be a elec problem. need some ideas and specs and what i should test. i did clean up the wiring in the car last sat. when i had the head off to replace a vavle. it ran ok after that just runs crapy after the sec time i took the head off something changed idk what tho.

[godofspeed666]

kind of sounds like no signal from the crank shaft position sensor. have you checked for codes

[porscheman930]

Cant get codes out having the engine swap in the diag port dose not work. engines from 98 silvia and the cars a 93 240sx. the CAS might be damged from the first time it was removed but its run after that so i dont think so

[porscheman930]

what voltages should be at the IAC no power it seams could cause hard starting and poor idle.

[porscheman930]

The MAF is good as far as i can tell, the voltage signal is correct and unpluging it makes it limit the revs' . i dont think that all 4 for injectors r leak since it ran a day earlier with no problems and now all for r bad idk? It seam like the car is getting the wrong signal and gives to much fuel while cracking. Think like the temp sesnor bad car thinks its cold and dumps fuel. Resistence of the to coolant temp sensor seam to be close to each other wti the car being inside at 74F but i dont know if there good r bad and if the signal from them or good r bad yet.