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I have a NA LS3, C5R 427 modified motor. Should I remove the 2Bar MAP OS because the car is not a boosted motor. Will my PCM crash if I try to remove it and install the 1Bar MAP

I had a intermitting P219B code, but have not see it in a while. I stopped driving the car for 2 weeks because the jerking from misfires was killing me. Haven drove it yet since replacing the plugs...

Photo's attached

When I zoomed in, I believe I see the drip on the 02's. I'm new to tuning. The car is a 2014 CTSV, stage 3 cam, 1 7/8 headers, 103TB, ported supercharger by kong. LSA motor.
2 days ago I changed the...

When I zoomed in, I believe I see the drip on the 02's. I'm new to tuning. The car is a 2014 CTSV, stage 3 cam, 1 7/8 headers, 103TB, ported supercharger by kong. LSA motor.

2 days ago I changed the 02 sensors, sparks plug and wire. problem is still there, P219B

Hi my name is Ray from Florida. I'm new to tuning and have a 1968 Pontiac Catalina with a LS3 C5R motor. I will need all the help I can get, Thanks
C5R block
Callies dragon slayer 4.0" crank
Comp...

Yes, still cable

I believe it was from a 2002 trans-am, yes F-body.

I'm using training wheel with the tune. For now reading and learning the tune software.

It's also a drive by wire system.
Hopefully I get it back next week. Corona delayed the body shop for a few months.

See files, I'm waiting for car to return from the body shop.

Trying to do speed density

Front and rear 02's are not present.
dual 3'' all the way back.

Fuel
255L intank pump
60lb injectors
custom feed/return lines with regulator

Tranny
FLT level 6 with hardened input/output...

Should I use 1 or 2 bar to tune this GEN 3 427 using a GM P01

C5R block
Callies dragon slayer 4.0" crank
Comp star rods (made by Callies)
Weseco pistons -8 cc
ETP 225cc heads , ported to 232cc...

What I meant was I was changing the Error mode from MIL on first Error to No Error reported, while leave no SES box checked, so it won't show a trouble code.

The MAF does not read because it's been disabled. This current tune is setup to run in speed density without the MAF sensor. That is also why you have the codes P0102 and P0103 because the MAF sensor...

Files are attached

5FDP thank you, thank you, thank you. Yes I'm running 63 pound injectors, gas gauge is holding 60 pounds.

Quote: And while you're at it, you should adjust the tune so that the cylinder volume...

Yesterday ran a scan it has p0102, p0103 and p1637, I miss the old days when all I had to do was touch 2 screws on the carburetor. But I feel great when it come together.

This video is 6 years old, now that I'm retired I can work on it. Yes the body is the same :banghead: but it is going to a shop this week :pray: when i get it back I register it and start street...

Thanks guys, watching Chopperdoc YouTube video through me off. I know I'm using the latest Hp version.
I'm trying to find out why my MAF is not reading.
Trying to set up TB voltage and position...

Thanks for any help

Here are the files

I'll try to post them, I need a minute :pray: I nearly 60 years old :crazy: