re-did wiring car wont start.

[S13 240SX]

I re-did my wiring for rb to 240 chassie and i think everything is fine becasue i went off by 3 different guides.

problem is i'm getting no spark so no start, just cranks all day long once i held the key for 1 minute and nothing.

i check my fuel injectors and they all click/pulse, and spray fuel, but my spark plugs are NOT getting WET with fuel. ugh

i took my plugs out and coils and my CAS, i checked spark by turning the CAS by hand, i get no spark just one small click sound from the spark plugs and its not even a spark.

I"m not sure what the problem could be or maybe hell just risk wasteing more money on another set of spark plugs and hope it works, but maybe someone can tell me what the problem is before i waste money.

also

maybe this could be the problem,

i have 1 wire left on my ka chassie plug thats not wired to anything.

its black/yellow and a guide is telling me its a power to coils which doesn't really make any sense?

has anybody ever had to wire that wire in and will it help my problem?

thanks

again its a thin black/yellow wire coming off the brown ka chassis plug, is it needed?

[S13 240SX]

???

[S13 240SX]

nobody has this problem huh? k thanks

[craz4240]

It's hard for us to diagnose your car,reason is that black yellow wire is not for your coils so whats messed up???Noone knows for sure,your plugs aren't getting wet with fuel so I am gonna suggest your fuel lines are reversed first of all.

As for the wiring guides are just mean't to be guides......some of the info is incorrect and you need to use the fsm to correct it.

I wish i could tell you what the issue is but we need more info first.

[S13 240SX]

It's hard for us to diagnose your car,reason is that black yellow wire is not for your coils so whats messed up???Noone knows for sure,your plugs aren't getting wet with fuel so I am gonna suggest your fuel lines are reversed first of all.

As for the wiring guides are just mean't to be guides......some of the info is incorrect and you need to use the fsm to correct it.

I wish i could tell you what the issue is but we need more info first.

fuel lines are not backwards cuz the motor ran before this re-wiring i did just ran like sh*t.

and i haven't touched the fuel lines since then so where they are now they are fine cuz it ran before where i have them.

[styc]

well if you aren't getting spark then you either A. you don't have power to the coil or B. the ecu is collapsing ground.

first find out what you have, get a meter and see if you have power at your coils.

[PorkChopExpress]

you had the spark plug grounded when tested right? Also there is a black yellow wire that goes to your last three injectors. I think supplies 12v. Check the plug next to the fpr . You will see what I'm talking about. Also your hearing your fuel pump kick on right?

[S13 240SX]

yeah i had it grounded. yes fuel pump primes when i turn the key to ON

and i'm asking about a black/yellow wire from is on the ka chassie plugs it doesn't have anything to do with the injectors cuz my injectors are fine, they all power up and dump fuel

[S13 240SX]

guys please help me??

update.. i have 12 coil packs..

i tested them all with key turned to ON, all the coils got 11.60v is this good,bad,or just OK?

i also got 9 ohm on all of them too.

but i get no spark or only one plug sparks, or the spark is escpaing out which i can't see and electric tape wrapped around coils is not helping anything either.

[mello88]

Is your battery strong, and what are the plugs gapped at?

PS are you getting fuel in each cylinder now?

[S13 240SX]

my battery is showing 11.90v and fuel yes. plugs at .08

[Project_RaceBreed]

LOL ur haveing the exact same problem im having. I have replaced my ECU my rb harness tried z32 ignitors, ect ect. If u figure it out let me know.

[S13 240SX]

hey guys i have a problem with something.

i'm using a wiring guide for wiring rb to 240 ka chassis plugs...

and it tells me to find a 12v wire from the grey plug with the key turned to 'ON" now I probed every single wire coming off the grey ka chassis plug and none of them showed 12v with key ON none of them showed anything. before you say checks grounds, i did and yes all grounds are hooked up so i dont know what it could be..

has anybody has this problem when checking for a 12v volt wire???

also i'm not sure if this is the problem or not but my battery is showing 11.60 on the volt meter so i went to charge the battery up to 12.02volts and within in minutes the battery dropped back to 11.60.

anyone have any idea's? i'm about to sell the car 1 year is way too long without a car.

please share me your ideas.

edit i have anything hooked up and its not starting sometimes it does for start for a real fast second but i can't keep it going and spraying starting fluid is not helping to start either, fuel pump does prime ecu light/relays everything clicks when key is to ON

[ItzGenX]

That voltage should be enough to get it started. Common problems on wiring of RB's and SR's tend to fall in proper power distribution wires or grounds. Grounds are simple and they usually are branched into a large group with a ring terminal, or they are just a simple wire hanging off a connector in the engine bay with a small ring terminal. Power on the other hand is what gets some people. They may be getting battery voltage where they are supposed to (at ecu, coils, ignitor etc). The problem I found when diagnosing some local swappers tend to fall into the power wire feeding the ecu during cranking. They use a 12v switched, but when you turn that key past the 'on' position into cranking, voltage drops down to like 3v. If the proper wire is used to power the ecu, voltage should only drop down between 9-10v during cranking, or just lose 2-3 volts however you look at it.

[S13 240SX]

ehhh..

anybody else have any other idea's why i'm not getting a 12volt wire on my grey ka chassis where I should be.

[ItzGenX]

Trace it inch by inch all the way to the fuse box. Maybe you blew a fuse O.o This is the part where people kind of can't help you from 1000 miles away. A multimeter is your best friend at this point. Tracing a wire to it's origins is one of the basic skills of an electrician and electrical trouble shooter. Anyone can do it with a multimeter. It takes basic understandings and the original wiring schematics for your car. You follow the schematics with basic check points making sure you got power elsewhere down the line. If so, move on to the next check point and repeat the steps until you find the culprit. You also said the car ran before you rewired it. So the problem may be in your rewiring job, double and tripple check your work. You could have even fried something in the process, so do not rule that out. Get in there and put a little elbow grease on and see what you can find. The only way people from across the globe can help you with wiring gremlins is with more information on what you did or did not do yet. To us, it is the process of elimination.