It runs!!!!

Discuss the RB20, RB25 and RB26 series engines.
darkstar575
Posts: 88
Joined: Mon Jul 02, 2007 2:23 pm
Car: s13 hatch

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Add another running rb20det s13 to the books. I followed skillzillas guide to wiring my car. I had it turning over with no spark...I re-finished my wiring using the thick white wire coming from the fusebox for ecu relays this time....The 12v source from the rb plug did not have enough juice...It wasn't thick enough....It ran for a whole minute. Only bad thing is that it my turbo was nutting all over my radiator....Seems that I'm going to need an upgrade. Anyone have an rb25det turbo they would like to sell me? I need the dump pipe from the rb25det as well...Email me at [email protected] call me at 3059651559. Thank you!


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S13 240SX
Posts: 1065
Joined: Thu Dec 08, 2005 2:44 pm
Car: 93 Mazda Miata

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so were u gettting now spark? can u help me out please.. my rb20 is getting no spark no fire on cylinders 2,3,6 and i did about everything and can't find the problem..

can u help me out and post pictures of this wire you did or show me?

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nizmo zilvia
Posts: 751
Joined: Thu Jul 07, 2005 5:09 pm
Car: 95 240sx w/ S14 SR20 Blacktop

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You checked your coil packs to see if they are working? What you can do is take out 3 coils and put the spark plugs on your turbo manifold and see if you are really getting any sparks. Then do the same with the other three. If you are getting sparks and still not running on 2,3, and 6 then it might be your injectors clogged up not allowing them to fire up.

Hope that helps.

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S13 240SX
Posts: 1065
Joined: Thu Dec 08, 2005 2:44 pm
Car: 93 Mazda Miata

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i checked my injectors they all spray noraml good spary amount of fuel.

and yes thats the way i been checking for spark.. no spark at all.. and with the car running, i pull each connector at a time to listen for a drop in revs or exhuast note. and 2,3,6 don't do anything..

and i'm getting 8ohms on all the coils.

darkstar575
Posts: 88
Joined: Mon Jul 02, 2007 2:23 pm
Car: s13 hatch

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You might need new coils....Tighten your alternator wiring....If you wired your White/purple wire to a 12v source on the rb plug, remove it and connect the white/purple to the thick white wire coming from the fuse box...Thats what I did to fix my ****...

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S13 240SX
Posts: 1065
Joined: Thu Dec 08, 2005 2:44 pm
Car: 93 Mazda Miata

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can u post pics of that wire please? i didn't do my rb20 i had someone do it for me so i have no idea where wires are.

i have swapped different coils in as well.

darkstar575
Posts: 88
Joined: Mon Jul 02, 2007 2:23 pm
Car: s13 hatch

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I'll post pics of all my wiring for you bro. The wiring is actually quite simple. Some shop was going to charge me 400-500 dollars to wire up my car. It's a good thing I was able to finish it...

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S13 240SX
Posts: 1065
Joined: Thu Dec 08, 2005 2:44 pm
Car: 93 Mazda Miata

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ok thanks yo because i tired to download the wiring guide off race bread.com but my microsoft word is soo old that it doesn't show the pictures. : (

and i dont have any new word software cds.


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