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180slider
06-22-2011, 10:07 PM
ok so i have an RB20DET and it has a no start problem??? Its got spark, and when i checked fuel at filter its getting it there so the next step was pull the rail. when i did this it only squrited on like 2 or so injectors, what could be my issue here???? i mean even it is only shooting fuel from a few it should still atleast try and run but it just cranks. i need input please.
thanks

copermn
06-22-2011, 10:48 PM
timing is all set up right?

and if fuel is only coming out of 2 of the injectors thats not good.. you need to have all 6, you could have it running on 5, but 2 won't do it.

180slider
06-23-2011, 08:21 AM
yea timing is set up and yea im going to try and check a couple of things and see how that goes

Sileighty_85
06-23-2011, 08:51 AM
either Injetors are dead or your wiring is jacked up

180slider
06-23-2011, 01:49 PM
yea well i just went out and the first 3 front plugs were getting continuity so i checked the back 3 and nothing. so i checked the front 3 again and then they werent getting it either for some reason when they just were and im not sure what kinda volts its supposed to be getting and if the car needs to be cranked when im checking for volts from the plugs??? man im kinda lost here. what do you guys think

Jtuned_andy
06-23-2011, 02:09 PM
Unplug your injector pigtails and measure the resistance between the tabs on each injector, they should all be the same if working correctly.

The injector harness is split into halves if im not mistaken, so the front 3 injectors are on a different line from the back three. Its been awhile since i've actually messed with my harnesses so don't quote me though.

You should see 11-12 volts at each injector with a volt meter.

Who did your wiring?

180slider
06-24-2011, 08:47 AM
ok well i checked it yesterday and im going to look at it again today but they werent getting that many volts to the it was like maybe 2 or 2 something but then iot would start falling downward. i ll get a more accurate reading and post them here today

180slider
06-24-2011, 01:25 PM
ok so i ran volts test, and when the key is on i got 10volts then it started dropping to 0?? is that what it is suppoesed to do?? and with the with the engine cranking i got 10-11 volts is this right?? but i tested for continuinty none of the plugs have it wtf haha im not sure what is going on there and i did this with the key on key off and cranking the engine. does anyone know wtf is going on

180slider
06-25-2011, 04:17 PM
any body?? no ideas what it could be??

Pro ViZIon
06-27-2011, 03:23 AM
Sounds like a wiring issue. Definitely check it out. Also did you ohm test your injectors. Should read around 11 ohms.

180slider
06-27-2011, 12:15 PM
didnt ohm test the injectors them selves but did the plugs for them. does any body have a good swap guide for this. that way i can go back and chase the wires down to see if they are connected right

Pro ViZIon
06-27-2011, 11:00 PM
If you google "240sx rb20 swap wiring" there is a good write up on nico.

180slider
06-28-2011, 08:10 AM
yea they are good but idk if thats what i need i think i need some thing more if you know what i mean

240sxdd
07-01-2011, 01:39 AM
Check your cam angle sensor.

Walperstyle
07-01-2011, 02:45 AM
why not try swapping injectors around to see if they all work? you said two fired, so swap them out with two that didn't fire, and see what happens.

180slider
07-01-2011, 08:32 AM
well i think its a wiring problem so my friend who had about the same problem wit hhis rb is coming over this weekend to help me with some wiring if that is what it is. but thnks man i might try that if worse comes to worse