Search:

You have to post the tune before anyone can check it for problems.

Narrowband fuel trims will always try to correct back to actual stoichiometric regardless of what number you put in or what fuel you use. They are uselessly inaccurate at any other A/F ratio. Or...

It needs to be tuned. Is there a question?

The fuel trims can't work until you fix the oxygen sensor problem.

If you are willing to switch to a 12587603 OS, you could have a 2 or 4bar VE, a boost spark adder table, pwm boost control for a MAC valve, spark cut rev limit and launch control, and a few other...

Most people here refuse to click random google drive links. You need to upload the tune to this site.

Try this. No guarantees.

That would be for the best, because I can guarantee that the person who did that to your tune file has no idea how to fix it. It really looks like they just took pieces of other running tunes and...

So.... That is a totally bullshit excuse for a half-assed tune. It is like someone who did not know what they are doing pulled tables from boosted, non boosted, SD, and MAF tunes and tossed them in...

The stock tune is your base tune. Modify as needed. There are plenty of guides on here to help you figure it out.

Engine diagnostics>airflow>maf fail frequency high=0. That disables your MAF. Then set your maf dtc list to mil on first error. Whether you uncheck ses enable to keep the light turned off is...

This is the sort of reason behind why I always carry a fire extinguisher in the car with me on new builds until I am sure everything is 100%. Even a small gas leak on the exhaust, or a frayed bit of...

I would go the easy route and tune out the MAF until I got it running good in SD. Then log dynamic airflow vs MAF hz and plug the resulting numbers into a new MAF table. This gets you a very close...

Since this is one of the google results when searching this topic, I will resurrect this thread with the fact that I found an Edelbrock efi fpr that says it will hold pressure for at least 20...

There are many ways to end up at the same place tuning. However, I have found it to be most accurate and efficient to tune areas where PE=1 using the fuel trims, and tune areas where PE is not =1...

And now for something completely different...

What is this, a quiz? I didn't expect the Spanish Inquisition.

Dumbass. That only works if your exhaust is the size of a coconut, lol.
edit-- Now that I have attacked you, perhaps I should run away before being hit with flying cows.

Like a cult leader sucking people in with a bit of truth before the utter nonsense starts. Think Jim Jones, except the mass suicide will be all the motors his advice helped tune.

I feel compelled to inquire as to the viscosity of this circle you speak of, lol.

This is a longshot, but did you install a high dollar multi disk lockup converter? If so they normally require modifications to the transmission to increase fluid pressure to unlock them enough to...

Old read will be fine.

A boost and vacuum referenced return system keeps the effective pressure across the injectors static, hence the same numbers all the way across for your fuel injector flow settings. The returnless...

You set up whatever math filters you wish to use on the histograms in the log. For instance, I set my wideband afr error histogram to only show data for cells where commanded fueling is < lambda 1. ...

If your hardware is all good (fuel system, etc.), your afr only varies by however much your tune is off.