Car acting funny

[AllTheGoodNamesAreGone]

well, i talked to keith @ hptuners (magnus)

he is not giving up any info on when we will be able to edit that parameter like the vette guys with ls1 edit..

here are the options that i have seen..

(1)
sacrifice a code.. I some info i found in one of those vette threads or somewhere there was the requierements for the pcm to run that test.. and if you have an SES code allready set it wont run the test.. so.. the way i see it.. pull out the rear o2 sensor.. and you have an instant error code.. thus preventing the test and "ducking" the problem

the only issue with this.. is that you wont be able to tell without frequent scans if you have another error code.. which is not that great expecialy for FI..

(2)
dont run as much boost or set BOV to lower..
My theory is that when it does these calulations one is essentaly a speed density calculation on the upper intake side of the TB.. the other is an alpha (maf based) calculation on the filter/TB side of the intake path..

it only seems to happen to me between normal cruing around town type shifts..

tommarow i am gunna limp my turd of a car over to tuboXS and get a blow off valve and install it.. and see how it goes.. wit hteh BOV in theory it shuld keep pressures lower and not cause th backups that make the pcm belive something is wrong and thus set the code..

the second option is kinda a thoery.. but it seems resonable..

man i wish the people over at HP tuners would just take care of this issue.. i could care less about everything else it does wich is great.. but this is gunna be a pretty big issue for the up and comming FI people with newer cars.. i am sure its jsut beaing a pinta becuase of the heat/humidity that sumemr has broungt.. but.. its not an issue thats gunan fix itself..

good dam GM and there electric TB's..

and finaly.. keth PLEASEEEEEEEEEEE help us out.. my car is almsot not drivable with this condition.. in fact i probably shuldent be driving it.. i have given you all the research about it.. jsut lay it out there buddy [img]smile.gif[/img]

[ July 06, 2004, 02:13 AM: Message edited by: AllTheGoodNamesAreGone ]

[AllTheGoodNamesAreGone]

and BTW radcat and hankhill/HH and anyone else with this issue..

do the world a favor and speek up over on HP tuners about this.. they are resonable people and i am sure would be willing to make this an option in their software but they dont see the need for it right now.. so just put a post up over there jsut so they know that I am not some nutcase..

[ReodDai]

P0107 - Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage

P1514 - Airflow to TP Sensor Correlation High

P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance

Theres the codes btw..

[UsMuScL398]

FI results

[Tyler]

if you have questions on codes.. here is your answer to them all:


http://myweb.accessus.net/~090/dtcobd2.html

all thanks to shirl for finding this. heh

[AllTheGoodNamesAreGone]

acctualy the place that i have found to be most accurate is autotaps website.. or directly from the application.. becuase they will tell you what the code is for your specific model.. because they sometimes use a code more then once that meens differnet things on differnt cars.. so.. you gota be sure to check that..

but that info posted above is pretty good as well..

[Tiago]

weird that Radcat has had the kit for well over a year and this is the first time this problem has poked its little head? We'll have to research this further, but I still think something else is related.

[Wicked 3800 V6]

I thought you could "turn off" codes with HP Tuners? Scrap them all!

[AllTheGoodNamesAreGone]

Originally posted by Wicked 3800 V6:
I thought you could "turn off" codes with HP Tuners? Scrap them all!

yeah but that its probabyl not guna work according to the corvette guys.. the say that on their cars you will not get hte code then.. but the car will still go into "reduced engine power"

[Timbo1969]

Originally posted by Rollingrock:
</font><blockquote>quote:</font><hr />Originally posted by UsMuScL398:
maybe it has to do with the fact ur drive by wire...

I dont think the 99+ have drive by wire. Why didnt autozone till you what they were, whats the point of having a scan tool and not being able to tell you what the hell is wrong with it; its like koolade and no sugar. Ya know! LOL </font>[/QUOTE]99+ 3.8's are drive by wire...

[Radcat]

Originally posted by Tiago:
weird that Radcat has had the kit for well over a year and this is the first time this problem has poked its little head? We'll have to research this further, but I still think something else is related.

That's what I'm thinking :(
If it ever stops raining here I'll be able to mess with it. I swear it has been raining for the last week.

[AllTheGoodNamesAreGone]

Originally posted by Radcat:
</font><blockquote>quote:</font><hr />Originally posted by Tiago:
weird that Radcat has had the kit for well over a year and this is the first time this problem has poked its little head? We'll have to research this further, but I still think something else is related.

That's what I'm thinking :(
If it ever stops raining here I'll be able to mess with it. I swear it has been raining for the last week. </font>[/QUOTE]humidity plays a huge roll in my issue as well..

[Radcat]

Boost is back!
Changed out the map sensor and reset the pcm and all is good so far. I drove around town for about 15min and made a lot of full boost passes on the backroads [img]smile.gif[/img] No codes thrown and hopefully none to come.

[ReodDai]

Woohoo! lol Hopefully it will stay that way.

[UsMuScL398]

GJ hope the codes stay away.... Good luck man!