If switching to Open Loop resolves the issue then perhaps it can be assumed that there is an issue with Closed Loop operation at the point in time where surging occurs?
During Closed Loop, the...
Type: Posts; User: MrDrezzUp
If switching to Open Loop resolves the issue then perhaps it can be assumed that there is an issue with Closed Loop operation at the point in time where surging occurs?
During Closed Loop, the...
I am indeed referring to non-WOT timing.
When real knock occurs, how often can it be heard? I.e. if the knock sensors are desensitized a bit (for testing purposes) and I am testing at less than...
Forged pistons.
More timing was pulled today, and after that (for the first time) I had a logging session without knock. I have pulled as much as 20* of timing in some cells.
Another logging session and a bit of knock (same area) shows up. I adjust the High Octane table accordingly. It feels like the car might be a bit happier now when starting from a dead stop? There...
If the gas being used does not have ethanol is it acceptable to change only the "PE Enable TPS" and the "Power Enrichment Fuel Multiplier vs. RPM"?
Set to "Max".
A tuning guide I have stated it should be set to "Max". Is that not the case?
I have the VE disabled, but the MAF can certainly be tuned/smoothed out a bit more.
Perhaps enabling the VE (and dialing it in) might make a difference? It certainly would not hurt to try.
I was suspecting/hoping that it was burst knock. For testing purposes I have zeroed out "Spark Control" --> "Spark Retard" --> "Base vs. Cylairdelta" table. This does not seem to have made much of...
I do not know if I am experienced enough to know what true ping would sound like? The exhaust I have on my car is also quite loud (Corsa Extreme) which makes distinguishing any sort of engine noise...
2005 Corvette
418 CI, 11.87 SCR, 8.52 DCR
L92 heads
Comp Cam 230 XFI (.612) / 234 XER (.598), 117 LSA
94 octane
For the last few weeks I have been trying to build the 0-3000 RPM area of a...
That's it! Thank you so very much!
You are always such a great help! :cheers:
When scanning a 2005 LS2 Corvette (that has the "2 bar MAP - Speed Density" custom OS), I am unable to use the "VE Boost" histograms. The message that I receive when trying to use the "VE Boost"...
Disregard what I wrote/posted above. 5_liter_eater has a writeup on how to dial in the idle RAF table. I have posted the 5_Liter_Eater guide below, but I would PM him to see if the guide I have...
Have people been able to notice a difference in drivability between MAF and SD? As much as I think I "should" be able to tell a difference (in certain driving scenarios), but I never have been able...
It is indeed a bit tricky to figure out what spark value to start with. I have been digging through the forums and the best I have been able to summarize is:
Smaller cams (22x) --> stock timing...
Thank you James!!!
From a tuning perspective, are the FRPP 80# (part no. M-9593-LU80) injectors identical to the Siemens Mototron 80# (part no. 110324) injectors?
I.e. if you had Greg's DVD would the FRPP 80#...
The DVD is excellent, and I recommend it without hesitation. :-)
Greg,
Siemens Continental offers two different models of 80# injectors. Would the settings for the Siemens 80's be exactly...
Ahh that makes perfect sense now. :-)
Be careful driving your car hard until you are confident it is properly setup and configured. ;-)
Different brands/models of cars have different ways of...
I am surprised you are throwing a lean code with a different intake. As long as the MAF, and the MAF housing are the same you "should" be good to go.
Without a wideband (via the narrowbands) you...
It amazes me that so many injector sets are sold and yet so few people actually have/use the correct values.
I am in need of larger injectors, and am waiting for Greg's DVD to arrive before I...
Disclaimer: I am new to idle tuning and some/all of what I am about to state may be incorrect.
I have recently started to foray into the nitty gritty of idle tuning and here is what I have been...
For convenience sake you could use the same amount of cells that are in the MAF/Volts table in VCM Editor. If you have the same cells then can use the "Copy + Labels" feature.
The cool thing...
As a tip, I like to create a custom PID of "LTFT + STFT". When doing my VE table and/or MAF table I then log against the "LTFT + STFT" custom PID (instead of logging against only LTFT or only STFT)....
I do not have the "MAF Volts" PID or the MAF table mentioned in this thread. I suspect this is because the VCM Scanner has not polled a Ford vehicle.
As long as you have inserted the "MAF Volts"...