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Thank you!

Just 2 bar. I'll be running about 9-10 pounds of boost. Prefer one that just replaces my stock map on my LT1 manifold.

Do you have a part number for a newer map sensor?

That's what my friend who works at an auto parts store says. He said the amount of returns is unbelievable these days.

Blindsquirrel, I misread your response in window #15--my apologies. Your last response cleared it up.

I left the 2 Bar OS in place, reinstalled the 1 Bar map sensor and adjusted the linear and...

OK, so first of all, many thanks to everyone's input.

Reinstalled the 1 Bar map sensor and loaded in my NA tune. Car cranked right up and ran fine. Interesting side note--since the supercharger...

Yes I do. But are the values for the 2 Bar tune not different than the stock tune?

Edit: I did some searching and did find linear and offset values for this 2 bar map sensor. They are different...

Where do I find those values?

Will do. FYI, I didn't change the linear/offset settings but the 2 bar OS has different values than the 1 bar OS.

Yes, the above is exactly how it was. That's what was confusing me--I thought the main difference would be the PCM would be reading a 2 bar MAP sensor and the VE tables were expanded.

Thanks for...

16040609

No, it is not returnless fuel system--it is the stock 4th gen LT1 set up

Will look around and see if I can find this.

Thanks to all responding. I thought this would be a relatively easy switch over to 2 bar OS. Looks easy on the video:) As I stated above, while...

Don't know what that means. This is my first foray into HP Tuners. Have had some experience with the LT1 Edit so I have had a little tuning experience but no expert by any means.

Attached are 2 tunes: VE Tune Final is where I was tuning the VE with all MAF, STFT, LTFT, COT, DFCO disabled and EQ ratio set to 1.0. On the second tune, I added everything back except the MAF. I...

So I got my VE dialed in without the boost--car ran great. I added back everything that I had disabled except for the MAF and created new tune with 2 bar OS. Followed the directions on a video on...