Help new build won't start.

[boosted KA24DE]

Found some info on a site and this is what my 850cc denso will run at....
Flow rates:
3 BAR - 850cc/min
3.5 BAR - 905cc/min
4 BAR - 980cc/min
now if my bin file on the ecu is set for 4 bar...well then i will run crazy rich..right
There are different denso 850cc sidefeed injectors so let say my that the right ohms setting in the bin file is not right then the whole setup would be wrong right. any thoughts?

[boosted KA24DE]

Originally Posted by nosajton

yea, keep me updated. give me a call tomororw if need be as i'll be at SEMA tue-fri

I'm still at it trial and error. could it be that i need to be at 3 bar on the ecu for me not to be dumping so much fuel. it runs sometimes but rough as hell and way too rich.

[importdude]

do u have a wideband?
alot of things can be messing up
little vac leak ect ect

when u get it right it will be awesome

im running the 850cc+emance E85 tune
perfect 13.8-14.7 idle


made 380whp 366wtq

lmk im here to help also


my car starts everysingle time no problems nothing

haters ftl

[boosted KA24DE]

Originally Posted by importdude

do u have a wideband?
alot of things can be messing up
little vac leak ect ect

when u get it right it will be awesome

im running the 850cc+emance E85 tune
perfect 13.8-14.7 idle


made 380whp 366wtq

lmk im here to help also


my car starts everysingle time no problems nothing

haters ftl

I'm happy your is running but mine ain't I have checked everything. either the tune is too rich or its something so stupid that i would burn the car for it driving me insane.
no wideband yet.
Are you running at 4 bar?

[orion::S14]

Originally Posted by boosted KA24DE

It had a rough start,idles like shit,I cleared the ecu for codes and intalled a new knock sensor cuz i was getting code 34 and it still will not idle on its own.
It's running pig rich on 850cc denso injectors.help.. not happy with this mess at all. the timing is spot on. i'm fouling plugs at start up. way too rich.

Again, how do you know the timing is "spot on"...????

If you haven't checked it with a timing light, it's probably way too retarded...and you're not getting complete combustion, so it seems as if it's running too rich (spark timing too late for the fuel in the cylinder to all burn).

Still sounds to me like a timing problem.

- Brian

[boosted KA24DE]

Originally Posted by orion::S14

Again, how do you know the timing is "spot on"...????

If you haven't checked it with a timing light, it's probably way too retarded...and you're not getting complete combustion, so it seems as if it's running too rich (spark timing too late for the fuel in the cylinder to all burn).

Still sounds to me like a timing problem.

- Brian

My base timing is spot on. If you have a better write up other than what I have found then be my guest and show me. Base timing at tdc is spot on is what I mean, I went over this on page one of this thread.

[nosajton]

Also are you sure your fuel rail isnt leaking past the orings? you need to remove the fuel rail bolts and have someone turn ignition on and off a few times to pressurize the rail and see if any fuel comes past orings


is the ecu still throwing any codes?

[orion::S14]

Originally Posted by boosted KA24DE

My base timing is spot on. If you have a better write up other than what I have found then be my guest and show me. Base timing at tdc is spot on is what I mean, I went over this on page one of this thread.

I mean check it with a timing light. The initial timing may be OK, since the car will start.

If it will run, have someone else start it...and hit it with the light.

Chances are, it'll be at ~5 BTDC or something...and that can cause most your issues (unburnt fuel, poor ability to rev, fouling plugs, etc...)

- Brian

[boosted KA24DE]

Originally Posted by nosajton

Also are you sure your fuel rail isnt leaking past the orings? you need to remove the fuel rail bolts and have someone turn ignition on and off a few times to pressurize the rail and see if any fuel comes past orings


is the ecu still throwing any codes?

My buddy just said something about that, I'll try it when I get home today.
Thanks.

[boosted KA24DE]

Hey Guys here is the news. I now have done everything in my power to get this car running right. I put my old injectors back in and stock ecu and maf. the car starts and runs on its own......meaning, there is some thing wrong with the tune or the ecu that was sent out. Hate to break it to you J but Ima have to return this to you. If you want another go at it I will send you out my ecu to get chiped and then we will see if it was a bad ecu I was sent. There is no other explanation. Everything is hooked up, grounds,plugs,wiring,piping.o2 is in place just finished downpipe.
I even had a friend who is a mechanic lui come over and conclude that it is the chipped ecu. he confirmed the base timing and said it was right. then we timed it with his gun and it ran,idled perfect at about18-19degress on the crank pulley notches. by the way my 850cc injectors are not leaking past the o-rings. I now have all the new stuff back in and again it wont start... its the tuned ecu. not happy but lets make this work. willing to work this out. I believe.

[nosajton]

call me tomorrow we'll talk about this

[boosted KA24DE]

Ok got new Dizzy got new chips for ecu and boom the car starts right up.
It will not idle by itself yet but is a hell of alot better than it was before. its not surging so bad and I only have to open trottle up a little. I am checking for any vacuum leaks and going over everything. checking to see if idle control valve is not stuck or something. It will foul plugs still if I try to start it again. a little rich but not as much as before and now i get 55 code for ecu being OK. Good signs so far lets see if I can get it running on its own now getting apexi air filter for z32 maf now should be here soon. And yes I checked the maf. got it from abuddy with a sr20det sentra and we just swapped his with mine and his car runs fine so its good. If any one has any ideas for helping me out, much thanks.