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145167

Hang on, I got this.

Need to calibrate the speedo either on a dyno or using GPS on your phone. Can't look at a log and tune file and know if it's correct.

You need to raise your fan temps. This isn't 1967 and you...

If vacuum is causing a seal to whistle then there is no crankcase air "IN".

Looks dead lean most of the time. Long term trims are constantly +25%. O2 waveforms look strange. Idle timing control is totally screwed need to put the over/under tables back to stock. you have it...

145161

VVE is completely jacked. Easy fix. Put it in speed density and dial it in.

It's not idling, ever. The TPS % is over 1% which means it thinks it's off idle and at some point the adder tables kick in. Need to adjust your TPS and/or throttle blade so it idles at .5 volts, then...

Derp. You're correct.

Most GEN4s don't have that problem. Every once in a while I run into one that does. And with both the GEN3 and GEN4s they only do it after a memory reset like a flash or a battery reset. After that...

Log doesn't look bad at all. TM kicked in on the 1-2 shift. Other than that the blade stays open and there's not much knock retard. 23 degrees is about as much timing as you want to run in one of...

The 680 torque you see is a command, not a calculation. The calculated torque is much closer to your dyno sheet @ 480ish max.

If it has the correct cam gear in it, and a GM sensor, and nothing is wrong mechanically it has to be in the wiring. First culprit is going to be the connector and pins.

Setting all the fail parameters works in almost all GEN4 cases. They're not near as finicky as GEN3s. Some of those can be a real pain. No rhyme or reason, just one will be a PITA and the next one...

There are too many variables, including an unknown name brand dyno, and no data log, to give an accurate opinion. Without a data log we can't tell if the throttle blade is wide open, how much timing...

I'll comment now that the name is removed. To me it's barely average but it's not terrible by any means. The idle is way too high which usually means the person has difficulty getting the idle and...

The answer to your question is no, there is NOT a button to flip, change etc. to change from one to the other. If there was there would be no need for the 300 box by Lingenfelter.

I'm with Alvin on this. If OP had issues with the work done he should have given the shop a chance to make it right. Otherwise, it just looks like a chance for a bunch of people to pick apart their...

Why are you restarting the same thread you started 5 days ago????

Need vehicle details. Is this a stock GM vehicle? Swap of some sort?

Can you be more specific on this? How close to open air are the O2 sensors?

Not a fan of 2 sensors in the same pipe. It'll never figure out the bank to bank fueling.

Save yourself more headache and buy a decent harness from a company that can answer your questions.

Here you go.

145008

145009

The answer to your question is TUNING is only speeled with juan EN.

And BTW your AFR SHOULD swing from rich to lean back and forth in closed loop.

When it happens the throttle blade opens some, the MAP goes high, loses vacuum, and then it recovers and the blade closes up again. I'd be taking fuel out of cranking fuel and the open loop tables...

Data log? :banghead:

Start your own thread.