HIGHFIV5's RB20--> S13 Project! (LOTS OF PICS!)

[Noxy]

WOOO!!! Congrats on getting her running! We now expect great things from you...

[CA18Magic]

Doesn't it feel amazing? And how much easier it is to sleep at night?! LOL! Congrats bro! Glad to see her start up! I know exactly what you mean when you say it sounds way better in person, and its okay to prematurely cream your pants after a swap. It happens to the best of us.. lol. The only difference is i didnt cream, i sharted

[HIGHFIV5]

WOOO!!! Congrats on getting her running! We now expect great things from you...

Haha i wont disapoint
This things a huge money pit lol got tonnes of plans for it still!

Doesn't it feel amazing? And how much easier it is to sleep at night?! LOL! Congrats bro! Glad to see her start up! I know exactly what you mean when you say it sounds way better in person, and its okay to prematurely cream your pants after a swap. It happens to the best of us.. lol. The only difference is i didnt cream, i sharted

Hell yes its a major sigh of relief! I was so stoked i didnt have to hunt down any problems or nothing.
Cannot wait to drive it. Should be able to by Tuesday! Just waiting on my Gauge pod for monday, and a few other minor
things i gotta do. LMFAO definitely :P

[HIGHFIV5]

So im pre sure my ignitor is f***...
Keep getting a misfire on cylinder 5
and i cannot get it to stay in time.
Needa hunt down an ignitor for cheap,
than she should be ready to roll!
I hope...

[zach-Ka]

That sucks man. I think a Q45 one will work...

[HIGHFIV5]

Ok fellas i need some help.
Hoping i wont have to make a new thread...
Okay well i got waste spark for starters...
But anyways, i was timing the engine, i had it running pretty smooth
throughout the rev range and idling nice.
Its on jackstands so i took it through first and second a bit and seen if i was still
misfiring.
Well no missfire but then it started bogging down and it died.
Ever since then it was idling rough and sputtering.
I borrowed an igniter from a buddy and went to go try it and she wouldnt start!
So i spent all night trying to figure out wtf is goin on and heres what i found.
Okay so i got the timing light on the plug wires so i can see if its gettin spark or not.
With the plugs in the hole and turning it over i dont get anything from the timing light...
With the plugs pulled out of the hole and on the wire the timing light fires steady
as it turns over. So for some reason im losing spark when the plug is in the hole.
Im suspecting that the coilpack got fried when i did that 2nd gear pull in the air,
thus why the car started sputtering and dieing after that and then finally wont start...
Sound bout right to everyone?

[Lonismos14]

1.) Check your compression. 2.) How does the plugs look? 3.) Im thinking the same thing maybe the coil pack got fried. 4.) what was the timing set to i would stick to the factory timing.
Good luck my friend.

[HIGHFIV5]

Havnet been able to do a warmed-up compression test.
120PSI cold is what ive been getting...but ive heard people getting those numbers
then gettin 160PSI on a warm test so yeh its not legit numbers really.
Plugs are saturated in fuel with some slight carbon build up,
but they are in good shape and brand new plugs.
Timing was set proper and everything was running good prior to it all s*** the bed
Tested the coil today and it works good apparently so im not sure really anymore...

EDIT: Turns out my plugs are fouled! s***...brand new pretty much havent even legitly driven on em and they fouled!
Damn NGK BCPR6 plugs...gotta spend another $80 on a set now...
I put in a s*** champion plug into the first cylinder just to check if the problem continued
and the damn thing almost started lol.
So gess imma have to get a new set of plugs...better it being something simple though then something
complicated. Glad i dont have to mess with wiring. Ill probly wait till my FPR adapter is in
cause thats probly the reason they fouled so fast. Stock FPR cant handle the walbro and was
dumping lots of fuel into the cylinders.

[Noxy]

$80 for a new set of plugs?! I work at a parts warehouse, so two boxes of iridiums cost like $10...

[HIGHFIV5]

Awwwe dayum. I wish man lol.
I dont even think imma be able to afford to drive my
car when its done LAWL JOY!

[CA18Magic]

Stock FPR cant handle the walbro and was
dumping lots of fuel into the cylinders.

Thats weird, cuz i'm running a walbro 255lph and it seems to be running smooth with stock FPR. I was gonna upgrade to a sard w/ tapped gauge anyways... but just curious if thats what fouled your plugs?

[HIGHFIV5]

Read this article....
http://www.240sxforums.com/forums/rb-en ... e-fpr.html
Kinda depends on the shape of your stocker i gess...
My plugs were pretty saturated with fuel...

[HIGHFIV5]

Ughhh. Cars ganna drive me nuts! Haha.
I seem to be having some sorta O2 problem...
Dunno if its in the wiring or the O2 itself.
But basically im running stupid rich. Exhaust is really black
and AFR;s in the 9.8 range
assuming my wideband is working correctly.
Im thinking it might have something to do with the brown
wire coming off PIN #115. Its the O2 Heater ground.
I took my O2 out with it plugged in and turned my car on and it was
not heating up, i could still touch it.
I also tried taking a jumper wire from that brown wire and connecting it to a 12V
to see if my O2 heated and still nothing.
Sound like this wire could be my problem or the O2 sensor itself is faulty??
Any ideas anyone

[Lonismos14]

fixed your problem yet?

[HIGHFIV5]

Sorry to keep you all hangin!!!
Ive been up visiting some friends since May long and just got back.
Havent really been able to work on the ol' girl but i gotta lotta wrappin up to do now.
Pre sure imma need a new O2 sensor hopefully thats all.

[arabdrifter]

not sure if this is gonna fix your prob but here goes;

i have an s14sr20 blacktop. it was doin this exact same prob. thought it was bad plugs/gapped wrong(f.y.i..it wasnt long that i bought a new set of plugs. they had some black residue like mentioned above). anyway i went through everything and sourced the prob to a ground issue. turned out a wire on my ecu was loose and would make my car run like poop/misfire baaad. so i soldered the wire and the prob never came back. i dont think you have a coil issue, sounds to me like a ground issue. i would make sure you re getting proper fuel, voltage, and ground. also check all your relays/fuses. could be as simple as a blown fuse/relay somewhere. hope this helps.

[HIGHFIV5]

Thanks man.
Something ill consider when i get my coils
and can get my car running again.
Cant even start it atm

[HIGHFIV5]

Probably bout time i should update you guys!
Sorry ive been slacking!
So i got the stock coilpacks in now and she starts fine
once again. Im currently trying to figure out this erratic idling problem i have.
I adjusted my FPR to 44 PSI without vacuum and that seemed to stable the idle alot.
I cannot seem to time it tho. It idles nice when the timing is way far advanced but
then its a farcry from 20 degrees. Whenever i bring it closer to 20 degrees she starts sputtering and such and often just dies its drivin me nuts!
Also my harness apparently didnt have the plug for my AAC valve so that isnt connected
right now either dunno if this could affect it much.
Only thing i got in mind atm is trying to check to see if my TPS is adjusted properly.
Any other ideas guys???

[CA18Magic]

Probably bout time i should update you guys!
Sorry ive been slacking!
So i got the stock coilpacks in now and she starts fine
once again. Im currently trying to figure out this erratic idling problem i have.
I adjusted my FPR to 44 PSI without vacuum and that seemed to stable the idle alot.
I cannot seem to time it tho. It idles nice when the timing is way far advanced but
then its a farcry from 20 degrees. Whenever i bring it closer to 20 degrees she starts sputtering and such and often just dies its drivin me nuts!
Also my harness apparently didnt have the plug for my AAC valve so that isnt connected
right now either dunno if this could affect it much.
Only thing i got in mind atm is trying to check to see if my TPS is adjusted properly.
Any other ideas guys???

Your AAC needs to be plugged in. The idle adjustment screw is located there. And your RPM's should be at 750 plus or minus 50 revs. Then timed at 20 degrees.

[HIGHFIV5]

Found my plug. It was actually my IACV valve my bad its been a while since i checked which one.
Got that plugged in. Found a coil that had resistance of about 25+ ohms, farcry from spec of 0.6-0.9.
Replaced it and tested resistance on all coils all were under 0.9. Made sure plugs were gapped at 0.8mm.
Adjusted my TPS to spec. Idle is still pretty erratic and still pig rich. Having troubles getting the idle good and
timing it. Is also very sluggish at first and sometimes sputters and nearly dies after revving it up.
All fuel injectors sound the same.
Running outta ideas.

[HIGHFIV5]

Beginning to f*** hate this car....
No matter what issues i find they dont do s*** all to fix my problems...
Found out my IACV was actually on backwards...oops my bad when i disassembled the engine.
Also took some time today to test my injectors.
All injectors resistances are within spec but i followed the service manual and tested the
resistance between the ECU and the proper terminals on the mid connector. 2 cylinders had
20+ ohms of resistance when it should read 0. Either thats f*** or it wasnt the proper plug.
The manual didnt say to test the male or female end but i figured itd be the female end since thats the one off
the main harness.
Fired it up, didnt run any better....AFRs were down from low 11s to low 10s once again.
Then it died and wouldnt start...figured i was outta fuel went and got some fuel,
still no go, reset the ecu still no go. This cars pissing me off...starting to be alot more trouble than what its worth...
Everytime i get it running a lil better something else seems to s*** the bed...

EDIT: Suspect the plugs fouled yet again... wtf :/ will check tomo, i dont feel like looking at my car anymore for today.

[Lonismos14]

Now that i think about it sounds like bov leaking symptons. i would recirculate and then see what happens.

[HIGHFIV5]

BOV;s been recirculating for a while now.
Pretty sure its not my plugs i tested them today and
seemed okay. Ganna try adding an engine to frame ground.

[HIGHFIV5]

UPDATE!!!
So i finally got this slut running pretty decent.
Took it for a very short drive around the block today.
Didnt get outta second or redline or anything too crazy fun buuuut,
i did hit 16.5 PSI :P Hit it damn hard too. Bottom end wasnt really there
a whole lot but boost was . Stopped though to turn down my tru boost lol
wasnt expecting that didnt wanna do damage. Didnt get to take it fer another run though it started acting up, hard starting and didnt wanna stay running and idling up and down then dying.
Before i took it out i warmed it up for a while and noticed the idle got better and that my AFRs calmed down to about 12.5-13.0. A major improvement over the low 10 AFRs i usually see at idle.
I think ive pinpointed my problem to my IACV.
Hunting idle, rich at idle, idle screw doesnt do much.
Hope im right and that i can get it back on the road soon and boostin hard
without worries!!!

[HIGHFIV5]

UPDATE at last!
Got a different MAF. AFRs at idle are 11.5 cold and bout 12.5-13.0 after warmed up then
very close to 14.7 after really warmed up after a bit of driving.
Have random leaning out moments up top will shoot up to bout 16.0 even higher sometimes for a moment.
Dont have a tach atm so not entirely sure what RPM and such, also it doesnt feel like its revving
all the way. Ganna try changing the plugs and oil probly again and also get an SAFC.
Bad overheating issues as well. Dont have my gauges yet but white smoke coming from under the hood is sign enough id say.
Even with a mishimoto aluminum rad and dual 12" electric fans she still overheats.
Need to get a proper fix for my top rad hose...anyone know a good match or do anything that made it so there
top rad hose didnt kink and fit nice?
Also, my engine came with a brand new water pump but they must not have sealed it properly, because i can see
it bubbling out the to when the cars turned off, not when its idling oddly enough but its a bad sign nonetheless.
Probably will invest in some water wetter. Anyways its an improvement at last! I actually got to drive it decently
and she sounds absolutely amazing! Just got some fine tuning to do now

[Noxy]

Well it's nice to hear that your starting to get past your trials and tribulations. You should be able to use the RB20/25 rad hoses if you trim them a little, at least thats what i heard from rawbrokerage...

[HIGHFIV5]

Yee thats probably my best bet. My first one was a skyline hose but it f*** split and then
the one i got on now is kinked to get it to bend that way so yee.
Also found out my overheating problem.
LAWL the lil piece of hose connecting the hardlines under the plenum
was f*** split wide open, explaining the overheating and the 30FT of coolant behind me.
Couldnt see anything wrong at first but while filling the rad back up i was able to find it.
Glad its an easy fix for once and its not just overheating for no good reason like i thought.
Although god damn do things ever get cookin under there...id be scared to go on a long trip lol.

[HIGHFIV5]

Still overheating badly. Believe i have air in the system still. Spent probs a good hour today tryin to bleed it all out.
It stopped the overpressurizing that was happening, but she still overheated so i gess imma have to keep trying to bleed it.
Definitely need them plugs, must be horribly carbon fouled from when my maf was f***.
Also can smell fuel in my oil yet again, from when my maf was f***. Ugh Motul and NGKs arent cheap lol 4th set now.
Atm my 93 Cavalier would probably slay my S13 in a race...if the plugs and Oil dont do s*** than my timing is off somewhere...
My engine had a Greddy timing belt on it when i got it but i have no idea if it was installed properly or if the engine even got tested with it on. So if that doesnt do it than im pre sure my cam timing may be off a tooth cause it takes like 3 seconds of throttle before the RPMs even start climbing and there is no difference at full throttle or half. Base timings set at 20 degrees. Hmmm.

[HIGHFIV5]

Overheating was due to the douchebag that installed the water pump when i got my engine.
Theres only 3 bolts and there different lengths, if yeh put em in a wrong spot they dont tighten they just snug
and spin freely. Needless to say they f*** that up and the bolts were not tight. Fixxed it, overheating fixxed.
Also....IMPORTANT UPDATE!!!!
So i found a bad coilpack on cylinder 5. Replaced it with a working spare, and BAM hesitation fixxed Finally got a real drive and holy f*** the thing is mental! f*** music to the ears especially when
pingin off that rev limiter
Just gotta dial in my Tru boost, its a pain in the a** to find the Spr (spring pressure setting)
Youd think youd just set it at 10 but that doesnt quite work so ill have to tinker but thats minor :P
She still felt like a god damn monster. So stoked to actually be able to have a real drive and kick it sideways a few times hehe!
Now i can stop droppin money into fixxin it and more into upgrades! Front lip is on
Z32 brakes are gonna get sandblasted later this week than painted red.
Coilovers should be here soon, and my Prosport water temp gauge to match my oil pressure and oil temp.
Also picked up a DOHC cluster since mine is pooched totally and a JDM red key ring for $40!
Next on the shoppin list is a 5 lug so i can put these brakes on

[CA18Magic]

Overheating was due to the douchebag that installed the water pump when i got my engine.
Theres only 3 bolts and there different lengths, if yeh put em in a wrong spot they dont tighten they just snug
and spin freely. Needless to say they f***** that up and the bolts were not tight. Fixxed it, overheating fixxed.
Also....IMPORTANT UPDATE!!!!
So i found a bad coilpack on cylinder 5. Replaced it with a working spare, and BAM hesitation fixxed Finally got a real drive and holy f*** the thing is mental! f*** music to the ears especially when
pingin off that rev limiter
Just gotta dial in my Tru boost, its a pain in the a** to find the Spr (spring pressure setting)
Youd think youd just set it at 10 but that doesnt quite work so ill have to tinker but thats minor :P
She still felt like a god damn monster. So stoked to actually be able to have a real drive and kick it sideways a few times hehe!
Now i can stop droppin money into fixxin it and more into upgrades! Front lip is on
Z32 brakes are gonna get sandblasted later this week than painted red.
Coilovers should be here soon, and my Prosport water temp gauge to match my oil pressure and oil temp.
Also picked up a DOHC cluster since mine is pooched totally and a JDM red key ring for $40!
Next on the shoppin list is a 5 lug so i can put these brakes on

Neeeeeed... pictures....