Search:

Ok. Just read it again. Got it.

Thanks. So, if I put some higher flowing heads on and the intake/throttle body becomes the restiction would I see lower map values?

Hello,

Is it normal to have a 101-102 kPa MAP values on a NA car? My 2002 Z06 with Halltech Venom intake reports 101-102 at WOT all the time. It may drop to 99kPa once I get over 6000rpm.

I...

Thanks for the help. I will try the suggestions.

A few questions...

1. Are the Adaptive Idle parameters only reference when you are at 0MPH? The car seems to idle great, if I blip the...

Thanks. Is there a "best practice" setting for the over/under spark values? Mine are set at stock values right now. I bumped the idle timing up 2 degrees from 17 to 19, but didn't touch the...

Anyone with experience fine tuning throttle cracker?

Frames 895-910 show an example of a parking lot stall. RPM just dipped too low and stalled coming up to a stop sign.


Thanks.

I swapped the stock cam for a 224/228 .581/.588 114 LSA. It idles great, I am just trying to perfect the intermittent stall/surge at low speeds.

Thanks. 2002 Z06, ETC. Is it a good idea to add a lot in the 400rpm column to "catch" a potential stall?

Ok, I have started logging Throttle Cracker vs. RPM vs. Speed and I am trying to understand how to use the data to tune the Throttle Cracker table. Do you look at the peak or average and how do you...

Agreed. I have been trying to tweak the spark tables a bit on my 02 Z06. Anything over 24 degrees on (using 93 octane) and I will get some knock retard. If I keep it at 24 max it never shows up...

Yeah, I just finished fine tuning the VE table. It was off a bit from the injector install. Seems more responsive now.

Thanks. I had just upgraded my injectors and was touching up the MAF curve and noticed it seemed a bit more responsive at part throttle when I set the tune to run on MAF from 0 RPM and up. I guess...

Anyone run a MAF only tune? I know GM uses a blended VE/MAF model but was curious if there was any downside to diabling VE and running stricly on the MAF?

While tuning the MAF alone (VE disabled)...

I think a consolidation of all the great info out there would be helpful.

- "Best Practices" on setting up a Wideband for tuning, figuring ground offsets, calibrating, integrating with HPT Pro...

I set it to no error report as well. Sounds like the issue is that the o2 sensors are positioned further downstream on the collector, and can cause a "slow switching" occurence. Weird that mine...

You highlight the cells in that range and in the box at the top you enter .997 and click the "X" for multiply.

Sorry for the delay. Here is a scan where the P0133 set. I forgot to mark it but I believe it is frame 3200 in the chart. Driveability seems fine and I only get this code on the drivers side. I...

I get the same thing. What should you tune for though? Is that why most try to tune slightly rich? LTFTs -2 to -5?

Thanks.

I disabled the code. But have lots of logs while it is set. I will try to post one up later.

I have been tuning my maf and logging quite a bit lately. I have seen that happen before as well. The motor seems to be + or - 2% and then I get a log where it is 5% lean, then log again later and...

LG Streets.

LG Street headers.

It says it is a slow switching H02 sensor, which after researching all the forums seems pretty common when LT headers are installed. Something about them not getting hot enough...

Thanks for the feedback. I have LT headers and I get a (P0133 slow switching H02) code. I have no leak on the bank. I have a wideband installed. After some research it looks liek I may never be...

Hello,

I recently had some long tube headers installed on my 02 Z06. I have been getting a P0133 code ever since. I had it checked for leaks etc. but that is not the problem. I have no cats and...