VTC on decel

[EFICU]

Then go ahead and make one with the 15* cam angle tune and see how it looks.

[MM082001]

Then go ahead and make one with the 15* cam angle tune and see how it looks.

Here's the 15* cam, it looked a bit leaner, but not to the moon.

[EFICU]

Can you post or email me a photo of the pipe and o2 sensor location currently on the car? Something is strange with it all. That one was very lean in areas the other one was not.

[MM082001]

e-mails sent

[MM082001]

Can you post or email me a photo of the pipe and o2 sensor location currently on the car? Something is strange with it all. That one was very lean in areas the other one was not.

Resent. had problem sending older pics.

[MM082001]

Checking out either the RDX injectors with pigtails, I don't really want to repin. Other option is the flex fuel kit with injectors EV14 550cc. Anyone have experience with both.

[MM082001]

ordering the RDX injectors with P-N-P connecters from RYWire today.

[EFICU]

Okay, that sort of throws another wrench in the whole thing but I guess we will see what happens. Let me know when you install them, I will have to send you a new calibration for the RDXs.

[MM082001]

Thanks, the paypal was from my wife, Julie.
Should we start from the beginning or can you make the changes from where we are at now. I am still running the 15* cam map, it feels great as long as I stay below 5000. The injectors should be a few more days.

[MM082001]

just thought I'd compare my original 0*cam log with one I just made. The biggest thing I noticed, besides running lean, is the map psi. I went from -1.4 to -0.7"/psi. Also, over 2 seconds quicker from 3000 rpms to 8300.

[MM082001]

Happy
thanksgiving everyone!

[EFICU]

Two things will account for the MAP pressure, the main thing being that you mounted the air filter in open air essentially getting a ram air affect now. Also, the intake temps are 32* cooler which usually causes the MAP pressure to change. Those two things coupled together are part of the change in MAP pressure.

For this newest datalog, it's almost clear you have a mechanical issue or bad o2 sensor because the first third gear pull has rich fueling, and the second one goes very lean. At roughly 6700, your first pull is 12.50, and the second pull is 15.0 at 6700. So something is not right mechanically, it's not the tune. You mentioned this seemed to start happening after replacing the o2 sensor. I would really like to get the old sensor back in there and test again. Something just doesn't seem to be right mechanically.

[MM082001]

Yeah, it's a new Bosch. I had to get it because the old one was cross threaded in the old pipe setup. Ouch that will be another couple hundred for another O2 sensor.
Could it be an exhaust leak before the upstream O2?

[EFICU]

It could be a leak. The fact that it's rich on one pull and way lean on the next means something isn't right. It was hard to tell from the photos, but is the primary o2 sensor horizontal in the pipe? It's not going south to north by chance? The sensor needs to be angled at say 3 o'clock, or angled down say at 4 o'clock? If the sensor is angled up at say 1 o'clock, that can cause an issue with moisture getting on it. See the photo below from a Holley manual.

[MM082001]

Thanks, I will look at that when I get back.