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I spent 2 hours on the dyno cleaning it up the best I could with the oscillating idle swings, smoothed the table out as well to see if that would help any to get idle stabilized to get good data to...

Thanks for the suggestion, loaded it up and same result.

Yes, Twin 320's in the tank, Boost Ref regulator with return back to the tank

Yes, you are correct Alvin. If i can get the idle stabilized it will all fall in place. If I turn MAF back on there is absolutely no issues with idle, cruise, I even have WOT dialed in pretty close....

I left the shop for the night. I will try it and report back. Thank you!

Installed an ON3 turbo kit, Fuel Injector Clinic 85lb injectors (data is correct), GM 3 bar map, MAF is failed, I have added Base Airflow,Set idle at 750, adjusted the VVE table multiple times and...

Did you ever figure this out, I have a 16 Mustang 5.0 that is doing the same thing and was looking for some info on how to prevent this as well

Not the whipple tune. It was terrible, had to start from scratch. Drives great, MAF is dialed in perfect. It?s just start up. 3.250? top pulley. Not sure on what stage kit it is, replaced the whipple...

I made a post yesterday about a 2012 Raptor with a 2.9 whipple surging on start up. It too has a surge at cruise as well. I started from scratch as whipple was absolutely no help, I've tuned many...

Nobody?

As stated, 2012 Ford Raptor, 2.9 Whipple, Ford Racing TB, on initial start up engine revs to 1600+ rpms and surges for the first 5-10 seconds and then settles to 750 as set. I noticed MAP reading...

99898

Forgot to upload tune

99886998879988899889

Around 14-1500rpms I'm getting the bucking, you can accelerate out of it but cruising 60ish mph it is annoying. I don't see much spark fluctuation. Any ideas?

I?ll do just that tomorrow, I can?t thank you enough for following through with the suggestions and help, I truly appreciate it. I will report back with what I find.

So I changed it and uploaded, I can't get it to throw the code now, at least so far. I hope this fixes this, now the only thing is it has some slight bucking or jerking while lugging it in high gear,...

So I installed headers, exhaust and got rid of the cats. the drivers side cat looked like it was starting to fall apart in the inlet side. But I'm still getting the P0101 and now P0121. I have...

Not yet, pushed it aside for the moment. Going to put headers and mid pipe on it then get back at it

its a whipple kit, it vents back into itself99138

here is a shot from it

If you open the scan i posted above you'll see what i'm talking about, i appreciate you taking the time to reply

look at the screen shot i posted above, when you whack the throttle it does it.

99129 Here's a scan with a WOT pull

Highest MAF reading I?ve got at WOT is 9900. And yes cylinder air mass reading is 6.82. It shouldn?t be no more than 1.4

I?m wondering since the VVE table isn?t scaled for boost is what?s causing it??

Got this car, cleaned up WOT fueling, car runs and drives great. During some driving events such as stabbing the throttle and getting off of it quickly I noticed in the scanner that the cylinder air...