Please, help with this log. What do I need to do or buy to cure this?

[93DE-EZ-UM]

I'm running 10lbs of boost. My car sometimes will run great and other time will run with all these knocks 43counts. Am I running too lean? This is the first gear pull below. My sencond gear does this too but I just didn't want to post it and take up more space. i also have the 3rd gear pull from 3000rpm to 7000rpm if any one wants to see it. My fuel trim stays this way at idle also. Please, give me some suggestion. Already check for boost leak and I already fix all that I can find. I do have lifters tick also. I don't know if it could cause these knocks though. Thanks in advance for the help.


RPM Knock Timing O2 Airflow Air Temp TPS Coolant O2 Trim FTH FTM FTL
844 0 10 0.49 38 104 13 192 126 132 108 140
813 0 9 0.08 57 104 17 192 129 132 108 140
1000 0 17 0.06 113 104 21 192 136 132 108 140
1688 18 22 0.04 208 104 25 192 149 132 108 140
2625 42 19 0.78 258 104 28 192 130 132 108 140
3281 43 18 0.76 391 104 36 192 104 132 108 140
3094 43 15 0.73 435 104 45 192 82 132 108 140
2656 42 9 0.61 435 104 47 192 76 132 108 140
2094 42 2 0.71 347 104 47 192 79 132 108 140
2313 42 6 0.06 441 104 47 192 98 132 108 140
2500 43 6 0.73 536 104 47 192 98 132 108 140
2781 43 5 0.08 643 104 47 192 100 132 108 140
3219 43 5 0.84 794 104 44 192 100 132 108 140
3750 43 4 0.84 983 104 44 192 100 132 108 140
4219 43 4 0.84 1128 104 49 192 100 132 108 140
4750 43 2 0.84 1456 105 60 192 100 132 108 140
5063 42 3 0.84 1607 105 58 192 100 132 108 140
5375 42 19 0.84 258 106 11 192 100 132 108 140
4969 15 40 0.63 120 106 11 192 100 132 108 140
4500 0 43 0.8 126 106 31 192 92 132 108 140

 

[FASTSPOOLINGST]

your trims will have nothing to do with tuning your wot pulls, the low trim is for idle only, your mid is for around 1-3psi, your high trim is for like highway cruising speeds, but by the look of your high trim you are running lean, richen it up a bit.

What set up are you running with? AFC, or MAFT? Datalogger? MMCD? Post these things along with your fuel system mods.

most importantly, watch for knock since you have a 1g.

First thing I would do though is check your base timing...make sure it's at 5* BTDC. You may be advanced a bit, with such high knock counts.

I looked at the log you posted, your rpms are all out of wack. If you are going to post a log, make sure it is a consistent rise in the rpms with as much as the rpm band as possible. It looks like from your rpms that you are not at wot the entire pull. It appears that you are tapping the throttle, or backing off a bit and getting back on it.

You need to get your high trim set right first then move on to doing wot pulls. But when you get to that level...do a third gear pull. Only post your knock, rpms, timing advance, and O2v

Then we will see what we can do.

 

[93DE-EZ-UM]

Thank you for replying. You are right about me backing off and getting back on the throttle. I was experimenting with that run and should of posted the smoother RPM run.
All I have right now is the datalogger and will get a MAFT right away to richen things up as you say. Should I go ahead and get the walbro 255 fuel pump and the afpr or just the MAFT will do for now? I did check the base timing and it seems to be right at 5 degree btdc but I will recheck it again. What do you think about my low fuel trim? Oh BTW, sometime my car will get 43 knock counts just crusing. It this phantom knock? Hey man, thanks again for replying.

 

[FASTSPOOLINGST]

im not sure if it's phantom knock or not. I doubt it, because it seems that your a/f is all out of whack. Focus on getting the A/F ratio in a good spot first.

When i made changes to my base knob and my idle knobs, i always rechecked my timing.
It kept moving on me, so watch for that too. I don't know if my car is weird or what, but it did do that to me.

Once i got my base knob set good, i then tuned the idle knob and then checked the timing.
Adjusted it, then i did wot pulls.

 

[93DE-EZ-UM]

UPDATE: My car runs a little better now. She pulls like she suppose to but still has phantom knock while partial throtlle cruising. It was the timing that was off by like 5 degrees because when I checked the timing the last time, I didn't have a good ground on the timing connector. I ordered the walbro 255 and it should be coming in a few days. Will see if it will help with my lean condition. I also noticed the timing light skiping due to the miss in the #1 and #3 spark plugs. The plugs are brand new bpr7es gapped .028 but the wires are the sorry borsch pltinum. I'm going to see if replacing the wires will help. I doubt it though because it's been replaced 3 times already. Can this be a bad CAS causing thees misses? Any help will be great.

 

[93DE-EZ-UM]

Update for those who might be interested...

I got my walbro in and insatlled. The fuel pump does help my running lean condition but still have part throttle knock 43 counts. Then I order the 3G revised lifters form E-bay (partsdinosaurs). That came in in 2 days. Very fast shipping I might say. Anyways, I put the lifters in and the ticking was completely gone. I went out and log and the knock was gone. I drove around for 2 days just to see if the knock will come back and it didn't. I'm very happy to say that I'm enjoying my car again after battling this part throttle knock for 1 year but didn't give up. My car is running so strong now. Thanks everyone for your help. Can't wait to get my uicp now and also afpr so I can up my boost.