JohnC

2010 Camaro SS L99 A6 Tuning with HP Tuners

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Should I just turn off all sensor #2's since they're the rear post cat? Or would that make it fail an OBDII emissions test?

See in screen shot all sensor 2...

O2_1.jpg

Anything to do with sensor two has to be set to "no error reported ". I need to look at your tune again and make sure I didn't miss anything else. You can check in the scanner to see if the readiness monitors are showing good. It's the tab that looks like a check engine light. Click that and then click read dtc's. Bottom screen shows the monitors.

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You just removed the primary cats.  You are going to smell fuel now.  You also haven't adjusted anything in the tune for the now more free flowing exhaust so expect the fuel trims to change.

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14 minutes ago, Mike said:

You just removed the primary cats.  You are going to smell fuel now.  You also haven't adjusted anything in the tune for the now more free flowing exhaust so expect the fuel trims to change.

I've done this before. I ran the GT catless 99% of the time over a 20 year period. I realize you can smell some fumes. :up:

But this mofo smells like pure gas at idle. :meh:

The GT didn't smell that dirty. :no: 

When I re-enabled LTFT and did not reset LTFT between the last 2 logs, it really showed in the LTFT + STFT at up to -18 at idle just after start-up.

See the last log. :yes:

I guess I'll have to go back to tuning via the MAF....

AFR's will go on ASAP. I got some AEM No Weld Sensor Mounts so I don't have to fool with welding the AFR bungs on.

This is just a temp setup anyway until my Kooks exhaust comes. I just want to see what it'll run like this with a decent tune.

Surely I can crack the 12's now. :yes:

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Looks like the car doesn't run so rich when it's hot out. Maybe the fuel for cooler temps needs adjusting or something.

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Looks like the car doesn't run so rich when it's hot out. Maybe the fuel for cooler temps needs adjusting or something.

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Stock they will retard the timing and run rich after a cold start to bring the cats up to temp faster.

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Stock they will retard the timing and run rich after a cold start to bring the cats up to temp faster.

Ahh. Ok! :up:

How's the tune and logs look then?

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Ahh. Ok! :up:

How's the tune and logs look then?

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I haven't looked yet. I'm currently without internet at home.

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I haven't looked yet. I'm currently without internet at home.

Doh! I can't live without internets! :no:

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Doh! I can't live without internets! :no:

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I had enough of tds.

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Couple more drives. Drive 2 has the most variation in rpm. Drive 3 was a pretty steady cruise down the freeway.

Drive_2.hpl

Drive_3.hpl

Are you using any filtering in your graphs? I'm off all next week. Pick a time, any time and let me weld in your bungs and show you how to get more out of your hp tuners. Please?

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4 hours ago, gammey4 said:

Are you using any filtering in your graphs? I'm off all next week. Pick a time, any time and let me weld in your bungs and show you how to get more out of your hp tuners. Please?

I think you and I setup filtering on LTFT+STFT?

Let me see if i can get a day next week. Will get back to you asap. :yes:

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@gammey4

Are you up in the morning, afternoon, or night?

I work 6pm to 6am, so I could try to come after work?

We'll have to take off the pipes to weld the bungs, correct?

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@gammey4

Are you up in the morning, afternoon, or night?

I work 6pm to 6am, so I could try to come after work?

We'll have to take off the pipes to weld the bungs, correct?

I'm up in the morning and the pipes may not have to come off. It depends on whether or not I can get my torch in there to weld it.

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Going to check and see if I can wiggle back out of a day OT to meetup this week. Will let you know asap!

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Can you meet up today?

PM me your cell# if so.

Going to take a short nap and then wake back up. :yes:

Sent

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