Running insanely RICH.. help help help!!!

[burgessn]

Just got my car started after rebuild and it is dumping black smoke and idleing very rough. When i say rich i mean i can only let it run about 2 minutes before my eyes start to water and my garage is filled with black smoke. I checked all the boost lines. Unpluged each coilpack and injectir one at a time and idle dips so those are good! i also noticed that when i turn the key on i dont hear my fuel pump prime and just get a click click sound from what i think is the relay up front. didnt think it was a fuel pump issue since its running insanly rich. i have been searching for help but keep gettin the same stuff Any help would be great!
Could it be my timing is off??
What should fuel pressure be?
When you unplug the maf the car should die right? Mine doesn't should i start there??

[anti tyler]

First off why are you running the car with the garage closed? lol

#2) let everyone know exactly what you are working with.
2a) what's the motor
2b) what's being used to correct a/f
2c) if you're still suspicious of the fuel pump, pull the relay/fuse and start er' up until it dies.

#3) tell everyone what your fuel pressure is currently at (if you know) (that could be a prime suspect)
#4) I had a few cars in the past where unplugging the MAF didn't kill the car.

[steve shadows]

^^^^YES^^^^

What ems are you using? Are you using one?

Make sure to check your injector o-rings out for sure...fuel pressure could be off...need to know the mods and how the tuning is setup.

[burgessn]

Thankz for the replys!!
Motor is sr20' with tomie 260 cams 850cc injectors, and gt35r turbo, if that matters.
I am using a flashed stock ecu right now cause i am having trouble with my power fc at the moment! It ran fine on this ecu before the rebuild,
I havnt checked my injectors yet;
My fuel pressure when running is around 35 psi,
Let me know what else ya need o and no im not running with my garage door shut! Lol

[Chaluska]

Thankz for the replys!!
Motor is sr20' with tomie 260 cams 850cc injectors, and gt35r turbo, if that matters.
I am using a flashed stock ecu right now cause i am having trouble with my power fc at the moment! It ran fine on this ecu before the rebuild,
I havnt checked my injectors yet;
My fuel pressure when running is around 35 psi,
Let me know what else ya need o and no im not running with my garage door shut! Lol

do you have access to nistune? sounds like possibly the TPS or MAF could be reading improperly, making the car DUMP fuel.. ive had this happen to me before 10 gallons of gas consumed in 15 miles.. that was fun... damn V8's

[burgessn]

No i dont have access to one i wish i did!
Im gonna check the fuel rail tonight.
Is there and way to test the Tps?

[davidg01234]

Ya definitely pull fuel rail and see if the o rings are holding up and not leaking. I highly doubt a bad tps would cause it to run insanely rich like that

[burgessn]

ok cool ill check them tonight. its really weired cause i had the motor running after my rebuild and it ran fine no smoking or nothing but i had to pull it back out cause the rear main seal was leaking bad. and now i got it back in nothing has changed and its running stupid rich!!
can i rule out anything mechanical? valvtrain, timing, cas, stuff like that?

[davidg01234]

ok cool ill check them tonight. its really weired cause i had the motor running after my rebuild and it ran fine no smoking or nothing but i had to pull it back out cause the rear main seal was leaking bad. and now i got it back in nothing has changed and its running stupid rich!!
can i rule out anything mechanical? valvtrain, timing, cas, stuff like that?

Have u checked to make sure the cas timing is on correctly? Using a timing light?

[e5s4y]

boost leak test
replace cts
check tps voltage is within spec
check maf voltage
check timing

or just hookup the consult and check most of those in like 30 seconds

[burgessn]

no i havnt done that either ill do that to tonight and see were its at.
also how do i check if i have a leaking injector o ring if my fuel pump isnt priming when i turn the key? obviously the pump is working since the car starts and runs.

[burgessn]

when i hook up my power fc the fuel pump primes perfectly fine and the car fires up but then imediatly dies. could my ecu be my main problem. and how do i figure out my power fc issue

[davidg01234]

That's a good question..a better thing to do would be to find out why it isint priming first of all

[AJZax]

-check MAF voltage
-what flashed stock ecu are you using?
-use FSM to check your primary sensors with a multi-meter.
-check your fuel pressure. It should be at 3bar (43.5psi I think?). A flashed tune, they will assume you are running oem pressure unless otherwise states, so if you're running 4 bar or something you'll end up running super rich. Think about the percentage difference volumetrically. you're injectors just got 33% bigger O_O lol


Anyway, good luck!

[burgessn]

ughhh this is why i hate wiring and bs lol and living in the middle of BFE so nobody can help me lol...

my fuel pressure is def low if i remember it was reading around 35 or so. but i can simply bump that up with my regulator.
as to why the fuck my fuel pump doesnt want to prime i have no clue were to even start, i feal like i am having way to many little problems all of a sudden it has to all be linked to something stupid.

[burgessn]

ok I have decided to say fuck the stock ecu bull shit since im not real sure what it is tunned for and just work my power fc issue. with my power fc installed I turn the key on the commander lightes up and my fuel pump primes for a few seconds. pressure is around 32 so still a lil low. but when I crank it over it fires up and then immediately dies. pressing the gas pedal has no effect. I checked to make sure the boost controller option was turned off and checked the sensors page. the boxes that are blacked out are IGN,ECC,WRN, and EXT ( is this bad lol)
any info would be great. if I cant get it figured out im just gonna take it somewere lol its starting to get old lol....

[burgessn]

bump help!!!

[burgessn]

sorry for the crappy cell phone pic but this is what i am reading
http://i247.photobucket.com/albums/gg156/nicholasrburgess/2013-07-10_16-06-46_347_zpse8141f09.jpg (http://s247.photobucket.com/user/nicholasrburgess/media/2013-07-10_16-06-46_347_zpse8141f09.jpg.html)

[Ka-t in progress]

Any chance of u having an i/c pipe off? That will cause one to idle rough and run rich as well

[burgessn]

no i checked all that stuff. i/c pipes all snug, and no vaccume leaks that i can find.

[Kingtal0n]

what does the boost voltage do when the engine fires then dies. Tell me it moves?

IS that a D-jetro of L-jetro PFC?

Under monitor->map tracer watch the fuel map for the little black moving box when you start the car. Before starting, the box should be sitting on 10000 (0psi) which is atmospheric pressure.
Once you start the car it should move up, and to the right, indicating the RPM signal and vacuum that the engine pulls is being read.

IF it only moves to the right, and does NOT move up, then your maf/map sensor is not properly connected.

[burgessn]

ok cool thanks alot
it is D-jetro
i will check those things tonight and see what i does..

[burgessn]

Ok so i tried checking this today but it does not stay running long enough to see if the boost voltage does anything!

Also the map tracer is showing in the very top left corner beforr the engine starts but again it doesnt stay running long enough to see if it moves!
Any thoughts? Could it be a bad map sensor?

[Kingtal0n]

Ok so i tried checking this today but it does not stay running long enough to see if the boost voltage does anything!

Also the map tracer is showing in the very top left corner beforr the engine starts but again it doesnt stay running long enough to see if it moves!
Any thoughts? Could it be a bad map sensor?

use your mouth to pull a vacuum on the map sensor. it sounds like the sensor is not connected to the ECU. You know it plugs into the side right? and the map sensor vacuum nipple needs to face DOWN. It needs a full time dedicated vacuum source with no T's directly from the intake manifold.

the black box needs to start near the center of the map to the left at 10000 (0psi) because that is atmospheric pressure (100kpa)

[burgessn]

haha map sensor wasn't plugged in... but still no start!!
the black box doesn't start in thee center it is at the very top left. what does that mean??
new picture of sensors page..
http://i244.photobucket.com/albums/gg25/cheer1632/commander2.jpg (http://s244.photobucket.com/user/cheer1632/media/commander2.jpg.html)

[Kingtal0n]

Top left is high vacuum. it means the map sensor is reading the engine as in deceleleration, throttle body closed going down hill engine in fuel cut 25+" of vacuum. It should start near the center. do you have the right map sensor? Did you try using your mouth to pull a vacuum on the map and watching the voltage?

If I get a chance ill video my map sensor voltage / map watch for you.

[1991jdm240]

burger...forget mechanical issues try taking the vacuum line to the brake booster off see if that helps...if not carry on with mechcanics.


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[burgessn]

ok i will try that?
y would it be reading as if it was in deceleration? what needs fixed?
does everything look ok on sensors page?

[Kingtal0n]

ok i will try that?
y would it be reading as if it was in deceleration? what needs fixed?
does everything look ok on sensors page?

you need to verify that the map sensor is working. use your mouth to pull a vacuum on the map and watch the sensor voltage move at the commander. The black box should also move on the map watch screen.

Its probably your vacuum source to the map sensor is no good. It needs to be a dedicated source directly off the intake manifold.

[burgessn]

wich one is the map sensor voltage? the one that says BOST.
the map sensor was ran to a nipple on the bottom of the throttle body wich is before the flapper so i moved it to one of the top nipples wich is after will see what that does tonight.

[WOTandSDWYS]

That part of the tb most likely does not pull vacuum. You may have made a great leap towards getting this thing running right.

Sent from my SPH-L720 using Tapatalk 4 Beta

[burgessn]

So sucking as hard as possible i got the BOST reading to go up to 1.81 and blowing into it got 2.14
Is that bad?
Map tracer didnt move doing either. Still sittin in the top left corner.

[Kingtal0n]

So sucking as hard as possible i got the BOST reading to go up to 1.81 and blowing into it got 2.14
Is that bad?
Map tracer didnt move doing either. Still sittin in the top left corner.

its working then. You need to source the vacuum from the intake manifold and it should work. make sure the port on the throttle body you are using is referencing the intake manifold pressure.

[burgessn]

Bump still not working???

[burgessn]

up up up!!!

[Kingtal0n]

if the voltage changes when the pressure changes then it works. If it doesnt "work" on the engine then you may have a problem understanding what intake manifold vacuum means.

[burgessn]

were do i connect it then good sir
there is no way that this is my only problem you think?

[WOTandSDWYS]

Its quite odd that it ran fine until pulled out one last time. Sounds like something you are overlooking that is either not plugged in, or plugged in wrong. Whether that be an electrical connection, ground, or vacuum line, we cannot know.

[burgessn]

back to the top anyone know whats up.. could it be something in the settings as far as ignition,timing, fuel or something like that?

[s13mikesr20]

Can u try to tune it back to stock then see if it runs any better on the pfc that what mines on right now and im running 35r and 1200cc injectors until I get my tune done on a gm 3 bar sensor my car runs peachy until 5k rpm?

[burgessn]

Ok so just an update i got tired of messing with the power fc cause i dont know alot about it and i dont want to mess it up any more than it is lol. so i decided to put my stock ecu in and see if i could solve my rich issue. when i picked up the ecu off my work bench i heard a rattleing sound so i removed the cover and low and behold the top chip had fallen off some how lol... so i pushed it back on and started the car up and she pured like a kitten... idles at 900rpm. 20 pounds of vacume, and compression is all at around 150... so seems like everything is ok for now untill i put some boost to it and it goes boooomm lol...
the only thing i noticed was that if i give it some throttle it spits out some fuel i believe..
its like wet black splatter.. i know that it is normal for cars to spit some condensation out the exhaust, do you think the black shit is just carbon shit built up on the inside of my exhaust? it smells a lil bit like gas but its hard to tell if its just from the exhaust gas ya know..
just woundering wat you guess think? thanks for all the help i will get to the tunner at some point and seee if my pfc can get working...

[s13mikesr20]

I would change oil cause you flooded the piss out of the motor black shit is just crap washing out of the exhaust(hopefully)

don't just boost the piss out of it sounds like when the chip fell out it went into limp mode
so just change oil clean o2 and start it one more time all that fuel might of leaked into the motor which is very good(just kidding shit will hit the fan)