DCmonkey

hello zilvia

Im hoping one of the sr20 guru's here can shine some light on my situation. i posted about this same issue on another forum, but havent gotten any love yet.

pickup up a 97 hardbody with an SR that was in it, which turned out to be shot. salvaged the head and had it refreshed and rebuilt then i sourced out another shortblock.

purchased a wiring specialties harness to wire it up since the prev owner had a crazy hack job of a harness.

After the usual turbo car hiccups trying to get it running right (vac leaks, ect ect.) i got her to turn on and idle somewhat decent. The problem now is that shes only pulling -18HG of vac when i know she should be in the 20's and after shes idled a bit the rpms drop and runs rough(unknown rpms due to the cluster needing to be wired to the harness) she basically struggles to stay on. she smells SUPER rich and worse of all when i try to drive she has almost no power, but the turbo sounds as if im supposed to be hauling A$$.

no colored smoke or signs of internal issues, just strong unburned gas smell!!

i am still in the finishing process of this project so a few things still need to be addressed like the gauge cluster and exhaust, but im about fed up with this truck because i cant seem to figure it out.

Changed-
CAS
Plugs .28 gapped
MAF(other one had a huge crack on the sensor)
CTS(she was flooding herself. replaced it and let it run to the point where it would normally flood.... this is where i am currently hitting a brick wall)

its a bone stock setup so the margin for errors i hope are a bit smaller, but this truck is honestly kicking my ass.

T25 turbo
370cc inj
isis turbo elbow
wiring specialties universal Pro-harness
WE ecu- stock according to prev owner

ive spoken to yury and his crew a few times. yury INSISTS to rule out the ECU and Harness which only leaves the possibility for either sensor or mechanical failure.....???

ive checked the timing and everything seems as it should. CAS was stabbed in with the valve cover removed to avoid stabbing it in wrong. Fixed some knock sensor wiring and fixed a fuel leak from the sending unit.

im so frustrated with this build that im not thinking right, so i hope someone can point me in the right direction.

got fuel, got spark, WHAT AM I NOT SEEING HERE??????

this is my first nissan so i have A LOT to learn

right now she runs and drives but idles like crap and feels a bit down on power


SOMEONE PLEASE HELP!! thanks in advance for any help given.

bataangpinoy

Few things you need to rule out as well before you start hunting electrical gremlins.


"18hg, poor idle, smells rich"

Vac leak/misrouted vac line

"turbo sounds like I'm hauling ass but i'm not going anywhere"

Wastegate open all the time
Actuator arm is not hooked up
Boost pressure signal(vac line) misrouted

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DCmonkey

Thanks pinoy!! I already figure out the situation. She had a clogged up iacv and a few minor issues. The only thing I'm getting is an odd 2k idle randomly after I run her a bit hard..... Faulty iacv possibly?