Car Is Lean at idle no matter how much fuel I add.

[Rich boy]

I have an LS 6.0L with a Brain Tooley stage 2 cam and HPI 80lbs injectors with a 78/76 turbo. I have gone into the tune and set it up for speed density. I halved injector flow rate and everything that deals with airmass in g/s and torque based. No matter what I do the scanner is showing that I'm 30+ percent lean at idle. I copy and paste special and multiple by percent and write to the tune file and scan again and it still shows that I'm 30+ percent lean. I have tried the to read in Lamda and it still show the same. I have smoked the intake and the exhaust and there are no leaks. Is there a table that helps it to not be lean at idle? I need help as I have been dealing with this for 2 months now. e

[danmw2003]

Vacuum leak, or incorrect PCV configuration

[Rich boy]

I have smoked the intake and this is a fresh build. I have welded bungs on the valve covers and ran hose to a catch can.

[abc]

Let us see a log also

[Rich boy]

ok. give me a sec

[04silverado6.0]

If you dont have any issues you can force a ol idle. That setup should not be giving a false lean. Some of these builds if i do ol idle i usually adjust by smell. Raw fuel burning eyes is too rich, lean seems to have a terrible smell and will make the cam cut up more, in between has the usual exhaust smell you know and love and has a more stable idle.

[Rich boy]

This Is the Scan

[Rich boy]

this is the injector data

[Rich boy]

I agree with you on that. It seems ok but I'm just wondering why its showing lean.

[04silverado6.0]

Some of it could be o2 placement. I doubt you would see that much error from a cold/delayed o2.

[5FDP]

Can you tell me why this tune is so scaled for an engine that won't make a ton of power?

Seems like a ton of un-needed changes just so you don't max out of the cylinder airmass in the timing tables. Big deal if you go above 1.20g, set the timing and let it eat. You're going to stay in the mid teens for timing anyway and it will do rolling burnouts with ease.

That's just my take on it. That fucked up timing table and messing around with other stuff just gives me a headache.

[Rich boy]

so are you saying leave everything stock and put the injector data in and set the timing and have fun?

[Rich boy]

maybe it is placed 36 inches after the turbo.

[SiriusC1024]

No need to scale.

Spark table is not good at all.

Injector Offset table needs the 0kPa column values copied to the other columns.

Start over.

[gametech]

You can't half your VE and cylinder volume. You need to do one or the other. I'm surprised it even cranks. No need to diagnose anything else until that is fixed.

[edcmat-l1]

Baro is reading 90 Kpa and MAP is 20Kpa at idle. The MAP reading doesn't see right. What MAP sensor? What's your altitude?

I don't see anything mentioned about fuel pressure. If you don't have enough FP it's always gonna be lean. You know, basics n shit.

[Rich boy]

fuel pressure is reading 58 psi. map sensor is 3 bar map that I bought from summit racing Part# 55567257 linear 312.50 and offset -11.25 and my altitude is 72 feet.

[Rich boy]

Thats the thing my VE numbers are very high. The car will not start until I get in the 50ish range on the VE table and the idle is rough. When it get in the 70ish range it starts to smooth out.

[Rich boy]

Copied to the other columns?

[Rich boy]

How do I force an OL idle?