Where is all my timing going??? Log attached

[joecar]

I have heard of rich knock, but I don't know how/what/when.

[joecar]

It's also possible to get a rich misfire, is that your stumble...? Wideband would show lean during a misfire.

[5.7ute]

Yep, keep safe...!!!

X2.
I did some acceleration tests on our track (1/4 mile) monday night. Even in dry conditions with roll on starts the wall came into view more times than I would like to repeat. I wont be doing any more testing on street tyres from now on. (not if I want to keep driving the car to work in one piece)

When you are able to do some more logging exploder post them up & we will see if we can spot anything helpful.

[exploder]

I went and made a few logs today and I think I got the AFR settled, and the timing doesn't just fall off now that I zeroed out the burst knock tables.

The problem now is even with the AF in the semi correct range I still have this horrible hesitation. It almost seems like it wont pull through it. I never get any knock retard on the scanner though. I gapped the plugs at around .035. I don't know if it's possible that I may have fouled the plugs, but wouldn't it run like crap all the time? It seems to run pretty good just normal driving around. As soon as you roll into boost and it hits around 5-7psi it starts spitting and sputtering like crazy and it will hardly accelerate. HELP

Here is the log and a new tune. Are my knock tables stock?

[exploder]

I think I may have found the problem. I asked my employee what plugs he put in the car and he told me tr6, but he hesitated when he told me. Anytime sombody hesitates when you ask a direct question is more than likely lying. I told him to go pull one off and let me look at it. I ended up watching him through the window and you should have seen his face when he turned around and saw me watching him. They ended up being TR55 not TR6 and they were also gapped at .045. I don't know what he was thinking, but I get to take it all back apart and hes not getting paid. I will report back when I get it all back together, but on a side note the plugs look GREAT. I will be wearing a sad face all weekend thinking about this.

[joecar]

The spark might be blowing out under load...?

Post a close up pic of plug if you can.

What coils and wires are being used...?

[WeathermanShawn]

O.K., guys I will ask the 'dumb' question. With the OP's SC application and COS5..is there no MAF?

I don't see a DTC..but if it is not physically there..

Just trying to learn..

Thanks..

[exploder]

I am running no maf at all only a IAT and MAP. I have a P0102 code when I check the codes through the instrument panel cluster through the car but the light is not on the dash. Is that wrong?

[WeathermanShawn]

If you don't get a MAF DTC then it will still run from the MAF... set P0101,2,3 in C6001 to 1-Trip.

I was just going by your posted log..(See attachment). It says NO DTC. The only way a car can run SD is with a the MAF Faulted (DTC). I don't know whether your Scan Tool is set to erase existing DTC's or not?

Lately, we have seen a half-dozen or so tunes posted (with problems) where tuners who think they are running SD or in reality not. In most cases the Engine DTC Processing Enablers C6001 are set improperly (to not report).

It becomes very difficult to know if one has indeed faulted the MAF. In most cases tuners copy the Low-Octane Spark to read exactly what High-Octane Spark indicates (remember in MAF Failure PCM uses Low-Octane Spark Table). So it becomes hard to see if indeed the MAF has failed.

Think how a car will run if one thinks the MAF is failed, but in reality it is not? Personally, I am not 100% sure how setting C6001 to Non-Emissions affects the DTC Code. I am just relaying what quite a few have posted in the last few months. Thats why I always set C6001 to 1 Trip, Emissions Related when I utilize SD. It always then shows up as a DTC. Call it overkill, but I set C6002 to MIL. Its a good check.

One thing seems for sure. You can not run SD without failing the MAF. That is whether it is physically present or not. I do not know if this perfectly describes your situation, but something to highly consider.

Good luck..

[5.7ute]

Shawn, when BBl I never get the p0102 code showing in the log. I have just put it down to using this method of logging as it is definately failed in my tune.