Strange DoD delete issue.

[ABaker2004]

No I have not had time to look at it. I have studied the logs that I have made at work and I have noticed that my MAF g/s seems to be very high. I'll see if I can't get some more work don't on it this weekend. It may not be till next weekend that I get a chance to look at it. Thank you for your help.

[ABaker2004]

Had a moment to do a quick little 5 minute log with the 02 sensor data on. I'm getting readings of 0.05 at 3,600 rpm. I'm not sure if that is the reaction of the 02s or if they are bad. I'm still learning how to read this data and what it means, however, I know I AM indeed running rich because i put a camera in to look at my valves and they are whitish. I haven't had a chance to check the pushrods but my cam is a stock grind and it is indeed in time. The engine seems to run great at high rpms not under load. In fact the CEL goes of when I stay at higher RPMs. Then it comes back after it idles for a while. I have attached the data log.

At the 4:41 mark, then engine is warmer, you can see that the LTB1/2 and STB1/2 goes to 0 when I rev up to around 4k rpm. Once it goes back down to idle, they all go nuts into the red.

[edcmat-l1]

Had a moment to do a quick little 5 minute log with the 02 sensor data on. I'm getting readings of 0.05 at 3,600 rpm. I'm not sure if that is the reaction of the 02s or if they are bad. I'm still learning how to read this data and what it means, however, I know I AM indeed running rich because i put a camera in to look at my valves and they are whitish. I haven't had a chance to check the pushrods but my cam is a stock grind and it is indeed in time. The engine seems to run great at high rpms not under load. In fact the CEL goes of when I stay at higher RPMs. Then it comes back after it idles for a while. I have attached the data log.

At the 4:41 mark, then engine is warmer, you can see that the LTB1/2 and STB1/2 goes to 0 when I rev up to around 4k rpm. Once it goes back down to idle, they all go nuts into the red.

Where did you come up with that nonsense? Whitish is lean. Black is rich.

That being said, you're dead ass lean. The O2s are bottomed out and the trims are adding a bunch of fuel. Also, more importantly, your bank 2 sensor is extremely hashy which means you almost certainly have a misfiring cylinder or 2 on that bank. That sensor should look just as smooth as the bank 1 sensor. In this screen shot you can clearly see the difference.

B2S1.jpg

[ABaker2004]

Sorry, I meant to say lean.

I've been told it may be a bad MAF sensor or 02 sensor. I'm not sure about that, but I know that I'm getting a code for being lean on both banks and I'll check more stuff either this weekend or next. I can't find any leaks although I have not done a smoke test.

[edcmat-l1]

You have a problem specific to the one bank. You need to make that O2 wave form look like the other bank. It's not a bad MAF sensor. You need to verify fuel pressure but even that is not the cause of the bank 2 O2 pattern. Fuel pressure needs to be verified because of the trims. Approach this like a normal diag. job.

[ABaker2004]

Timing is set correctly, Compression is equal among all cylinders, fuel pressure is 58psi with key on, and 65 with the engine running. I was about to buy a smoke machine to check for leaks, but I may have found the issue. Not celebrating yet, but I'm going to replace this asap and see if that fixes the issue.

Can't seem to get the image to post. Anyways its the boot of the PCV hose going into the valve cover. It's cracked all the way up. Wide open.

[gtstorey]

Fuel pressure isn’t right for a normal setup.