leaning out tune?

[SSlowBoat]

O2's appear to be working fine.

Interesting thing, a couple of the LTFT's have gone even more "negative":

First log L/R: Cell 2 - 128/129 ; Cell 6 - 117/118 ; Cell 10 - 121/121 ; Cell 11 - 124/126
Second Log : Cell 2 - 128/128 ; Cell 6 - 112/115 ; Cell 10 - 117/117 ; Cell 11 - 120/119

Good thing is it seems well balanced bank-to-bank

Still appears to be on the rich side in PE mode. If we can trust wide band sensors, in PE mode:

Left - Average 0.976 ; Right Average 0.984

In PE mode, Cell 15 was used and LTFT's defaulted to 128

Target idle is still 800 RPM. A bit of surging, with RPM ranging from 600 to 1,230 RPM. When this happens, advance ranges from 22 to 29 degrees (25.3 avg). As RPM drops, advance increases. Map also swings, reaching a peak of 71.6 kPa at the low (~600) RPM reading to 43.6 kPa at high (~1,200) RPM reading.

I'll keep looking.

I don't think the O2 sensors are a problem. The MAF still look high based on my experience. Averaging 11.3 G/SEC at ~850 RPM. But the Cell 16 LTFT's look good at 130/129. So not sure if MAF calibration, at least at idle is a problem. I just don't have enough experience on how much of the intake charge is lost at idle due to high overlap.

I think he should lower the iac over/under rpm bridge settings a bit. I had a similar issue and lowered the counts so the iac would stop driving it whacky

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[fullforce]

It does smell rather rich at idle but it seems to be idling fairly steady, it will burn your eyes in a few seconds. If in the garage. When driVing the car just acts like it's losing a cylinder or 2 at very very low engine load.

[Stormyweather]

Injectors? I'm just saying . Did I all ready ask that?

It's not how fast you mow. It's how you mow fast.

[fullforce]

There stock if that's what your asking?
Otherwise if the injectors are bad then they went bad in 1 week while I had the motor down for the cam swap

[SSlowBoat]

There stock if that's what your asking?
Otherwise if the injectors are bad then they went bad in 1 week while I had the motor down for the cam swap

I think it's simply some cam surge. with no cats even stock these cars are rich enough to burn eyes. build a boosted 383 with deka 60lb injectors and let me know how bad garage gets at idle.

I think you're overthinking it. drive car, let computer learn

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[Injuneer]

One possibility on the smell at idle.....

In Cells 6, 7, 9, 10 and 11 the LTFT's are pulling out fuel (about 9% average). Something is making it run rich, but the LTFT's are able to correct. In idle Cell 16, it appears it's near perfect (130/129), no correction needed. That is a contradiction. If there is blow through at idle due to overlap, or if there is significant misfiring at idle, Cell 16 LTFT's could be misleading. The A/F ratio may still be too rich, and the oxygen in the blow through, or the oxygen in the unburned misfire are going to cause the PCM to falsely increase the LTFT's, based on the O2 sensors reading lean. Maybe Cell 16 is already too rich, like all the others, and the LTFT's are adding more fuel (130.5 relative to average of 116.8 for the other Cells) that the engine doesn't need = smells very rich at idle.

Do you sense significant misfiring at idle?

[fullforce]

Been driving it lol I've put about 1500 miles on it. All im goimg off of is my last car that had almost the same cam on a 112lsa and this one is a 110lsa and I had no missfiring/piping at part throttle.

[fullforce]

Very hard to tell with the exhaust I have and the chop at idle.
Once I get eehack working again I can do the cylinder cutout and see.

[Stormyweather]

I bought some gasat a out of the way place once cause it said ethanol free. Ran kind opf like what you have going checked my injectors after asking aroundLlong story short I had an injector dumping fuel .fuelk railwould hold prime so did the on car leak test. found it. Doesnt run perfect yet need to cange my O2s still. And now that summer is here wellits on the list.

[fullforce]

so is there anything I can do on tunerpro to change the fueling down low? if it doesnt work I can always put it back

I tried messing with the MAF in tables 1 and 2 I droped the values by 10% but couldnt really notice any change.