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So if I have the year model for 03 silverado does an 03 Tahoe fall under that same license?

I am using a resistor to trigger an IAT event that pulls timing to aid with building boost at launch. My question is, there seems to be a .500 delay in timing recovery once the trigger mechanism has...

More specifically please comment on how much timing I am pulling for IAT and when its starting to be pulled.

Hello,


Please have a look at how I am adding/subtracting timing for IAT temps and let me know if you have any suggestions. This is a turbo charged 5.3 running 11psi with METH injection kit.

...

2bar map sensor is a GM 539 FYI...

Well I just tried a GM 466 2bar map, no more P0106 but still going super lean when you tip in on the throttle.

16040749 3bar map

I have a 2003 Silverado PCM that I have applied a 3bar OS to.

Car runs fine with the original MAP sensor, but once the 3bar OS has been installed along with the 3bar map I am having problems...

Thanks for the help, I will make the adjustments and respond back to this thread.

Just want to do a quick sanity check. Car would start and idle pig rich with the stock injector data, I then added the injector data from Greg Banish tuning DVD and now the car is so rich it wont...

I have also purchased Greg's book, looking for something more in depth though.

I purchased his DVD from summit, should be delivered this morning.

Anyone have a good recommendation on which book for ECM/PCM theory?
I am wanting the actual nuts and bolts of ecm function, fueling, spark, adders, multipliers, and sequence of items listed above.
...

fyi wth the mods i m sig, the said i put down 262/322 rwhp on the dyno. seems real low to me.

that is kinda what i am thinking about the fuel trims. i take kt a snifer is the sensor hooked to the tail pipe? if so, yes.

While on the dyno, the guy was telling me my AFR was 12 at part throttle and 10 @ WOT.

Have a look at this scan and see what you think.

Fuel trims were reset before the scan.

WOT run is at...

What are the mods? There is not a lot done in the way of fueling.

Well I guess you could go to

ENGINE > IDLE RPM > TARGET IDLE SPEED

and make your adjustments there to bring idle speed up. But then again you could always command a higher idle speed within...

hXXp://www.ls2.com/boggs/torques/2001pinpcm.htm[/url]

Well you said that you have checked the wiring from the injectors to the PCM. You have power at the injectors and coils. Seems to be only three choices--- bad ground, bad PCM or bad pinout on the...

It looks as if your getting fuel ( or IPW is showing some activity). If in fact you are getting fuel, have you checked for spark at the plug?

If I understand correctly, the MAF uses the VE table as a reference to verify if a MAF failure is present while in closed loop. But during power enrichment the VE table is not referenced. Correct?

+1

I have been very very happy with my tune since I have enabled the MAF again.

+1
On the idle statement!

Fixed That. :cheers:

Compared your tune to a stock '03 Silverado SS 6.0L Auto from the repository (may not be a good source) and your HO table does show added timing at WOT.

Yeah I forgot...

FYI

I did find some information that was able to assist me in tuning the MAF for WOT. I guess in hind site I should have tuned my VE table for PE fueling also (which is how I done my first tune...

PE enable? If you mean Power Enrichment EQ RATIO VS RPM then yes I have commanded the desired AFR