Fouls plugs, new injectors

[sachem]

You have a 05 Silverado AWD LQ9 6.0L VIN in a 04 6.0L LQ4 OS but you said it is a swap vehicle so not sure what you have. What fuel rail and fuel system do you have? Does it have a vacuum referenced regulator on the rail with a return line going back to the tank or is it a dead head fuel rail with no return. And are you trying to run it with open exhaust (open headers)? I can fix your bin for the 8.1L injectors.

Good morning,
The engine is an LQ9 out of a 2005 Escalade (I pulled it myself) with a 12592618 OS. There was no adx file for it. That is when Iswapped the OS to 12587603 .I would appreciate if you could fix the bin file. I feel like I am spinning my wheels and not understanding what I thought I understood. I have a returnless fuel rail. I installed a 4L80E and at this time the headers are open. I plan on getting nitrous in the future. Also, what parameters need changing for things like this, I want to figure this out. I can compare bins after you fix mine. As before, thanks...

[B52Bombardier1]

Hello,

The Parameter Tree view within Tuner Pro RT, when using a 7603 BIN and the 7603 XDF, has a "Fuel Injectors" expandable area with seven different injector parameter values that you need to insert. This is VERY EASY to see . . . . . . do you have a copy of Tuner Pro RT?

You need the data sheet for those numbers but it appears that 2xls1 is doing that for you.

Rick

[sachem]

Hello,

The Parameter Tree view within Tuner Pro RT, when using a 7603 BIN and the 7603 XDF, has a "Fuel Injectors" expandable area with seven different injector parameter values that you need to insert. This is VERY EASY to see . . . . . . do you have a copy of Tuner Pro RT?

You need the data sheet for those numbers but it appears that 2xls1 is doing that for you.

Rick

I do have Tuner pro RT, but no data sheet.

[sachem]

Hello,

The Parameter Tree view within Tuner Pro RT, when using a 7603 BIN and the 7603 XDF, has a "Fuel Injectors" expandable area with seven different injector parameter values that you need to insert. This is VERY EASY to see . . . . . . do you have a copy of Tuner Pro RT?

You need the data sheet for those numbers but it appears that 2xls1 is doing that for you.

Rick

Regarding the injector parameter values, other than using known good values, how do you know what base numbers to use by knowing injector specs?

[2xls1]

Here is your bin file with 8.1L MARINE injector data in it.

[sachem]

Here is your bin file with 8.1L MARINE injector data in it.

Ok so I uploaded the revised bin. Started the car, still too rich (O2's disconnected). Not dumping raw fuel anymore but still too rich. The idle doesn't stay steady. If I hold the throttle it will stay steady for a short time, while I hold it, then will speed up and then shut down. When I restart it I have to hold the throttle and if I try to let it idle it drops very low for a couple of seconds then dies. Don't know what to do next. Do I have to adjust injector data?
I have DBW, btw, so I can't turn a screw to increase idle speed.

[2xls1]

Is this a stock LQ9? Stock cam? Using a MAF? At this point you need to be able to use a scanner that datalogs and be able to interpret what the sensors are showing. Have you verified fuel pressure at the rail with a fuel pressure tester?

[sachem]

Is this a stock LQ9? Stock cam? Using a MAF? At this point you need to be able to use a scanner that datalogs and be able to interpret what the sensors are showing. Have you verified fuel pressure at the rail with a fuel pressure tester?

Not stock cam. Fuel pressure dead on @ 58psi, verified with gauge. Yes, has MAF. I have a scanner, I believe it datalogs. Otherwise I will try the PCM hammer datalogger. What do you suggest for datalogging? What program do I use to read the logs? I'm using tuner pro and ls droid for tuning. I need to figure this stuff out.

Tom

[B52Bombardier1]

Regarding the injector parameter values, other than using known good values, how do you know what base numbers to use by knowing injector specs?

If you don't have the data sheet that came with the injectors from their manufacturer, take the injector part number and go to the manufacturers web site and search for the data. Nobody does perfect guesswork on this sort of thing. Those seven variables have too much variability in themselves to be guessing. Seek out the data on the sheet to make your life easier because PCM programming is hard enough as it is without adding random guesswork into the mix.

Rick

[2xls1]

Good morning,
The engine is an LQ9 out of a 2005 Escalade (I pulled it myself) with a 12592618 OS. There was no adx file for it. That is when Iswapped the OS to 12587603 .I would appreciate if you could fix the bin file. I feel like I am spinning my wheels and not understanding what I thought I understood. I have a returnless fuel rail. I installed a 4L80E and at this time the headers are open. I plan on getting nitrous in the future. Also, what parameters need changing for things like this, I want to figure this out. I can compare bins after you fix mine. As before, thanks...

First of all you absolutely can not run open exhaust with a closed loop fuel system and O2 sensors. Even with correct injector data it will flood the cylinders with fuel when it goes into closed loop. If you must run it with open exhaust unplug the O2 sensors so it will stay in open loop. I'll have the corrected bin a little later.

[2xls1]

Here is your bin file with no other changes except the 8.1L injector data in it. The injector data came from a 2005 1T Silverado with a 8.1L.

[In-Tech]

Does he have 8.1 Truck or 8.1 Marine injectors? Huge difference and no vac or vac regulator?

[sachem]

Does he have 8.1 Truck or 8.1 Marine injectors? Huge difference and no vac or vac regulator?

Marine, no vac

[sachem]

Thanks 2xls1,
I am downloading now and will run car tomorrow when I get home from work. The neighbors won't be too happy to hear open headers now. I am only running the headers open while i am completing all the work I have left on the car. I will disconnect the O2's as you said. I'll post results.
Tom