built bottom end SR won't start easily, nor rev

[17wantinga240]

ok so i recently replaced my bottom end with a rebuilt one. replaced the head gasket and arp head studs. So here is the problem it will start and stay on but rev super low and it and i give it gas it doesn't rev at all. And then it turns right back off. and when i start it it has to be w.o.t.

any ideas realy wanna hear it start its been almost a year

[supreamS14]

Re check everything. Vac leak, harness connectors, battery........Did you set the motor to TDC before you took it apart? Set timming after?

[17wantinga240]

yeah i set it to tdc before i took it apart. im going to attempt to use a timing light and see if the timing is dead on

[supreamS14]

Make sure it's @ 15*.

[17wantinga240]

well the timing is dead on but it just wont start.

Make sure it's @ 15*.

what do you mean by that

[jr_ss]

He means make sure the motor is at 15 degrees before top dead center. When you put your CAS in, the marks on the crank pulley should be at the 2nd from the left (looking down at the crank pulley). When it's running and you have the timing light on it, you should see it at the 2nd mark from the right...

[17wantinga240]

well i repositioned the cams and it started i was off by 10*

this is what it does when i turn it on

ill rev it up and then it'll bog out and after like 3 mins of being on it'll cut off but i may have found the problem a hose that connects to the iacv popped off soo im going to put it back on and see how it runs.

[17wantinga240]

ok so today once again i went over my timing and it was perfect.replaced the spark plugs again. try to start the car and nothing.

but i push started it and it took a couple of tries but it turned right on.

after turning it off about 3 times and driving it around the block a couple of times it dies right after i turn it on. then it didnt want to turn on.

and it wont let me rev past 3700 rpms any one have a clue on what the problem is.

and it doesn't show that i have any boost leaks.

but i seems like im not getting enough fuel and too much air

any one have any ideas

[duffman1278]

Check wiring for MAFS or possibly a bad MAFS.

[17wantinga240]

all right will try thanks

[240sxConvert]

Yeah...definitely check the MAF...

[17wantinga240]

well i checked the wiring and that was it one of the wires was cut for some odd reason fixed it and now it runs great

[Steady_One_S13]

Ha Ha...those damn gremlins...