Has anyone had any problems with the S/C reflash?
It ran fine until I got to the dealership and had the reflash done. once it was reflashed they couldn't even pull it around the dealership without it stalling.
I am having problems with idle and taking off. First at idle it seems to run very ruff, it sounds like its lobing(might be normal). It will stall out, but when it does nothing happens it just dies.It seems to be running rich, but adjusting the FPR seems to do nothing. And my wideband doesn't seem to help much either, since it runs so ruff, the #'s are all over the place.
Then under load when I give it gas it doesn't want to move, it just spudders and putzes along. When it finnally does get moving it pulls great and seems to run fine. But I do have to feather the gas to get it moving.
After adding a SAFC II it seems that the AFPR doesn't even do anything. I have about had it with trying to turbo this thing, any coments, help, anything??????
Here's what I got......
Garrett straight T3 .63 A/R Exhaust .50A\R compressor 60trim turbo
Custom Log Style Turbo Manifold
38mm Wastegate
Turbo x's BOV
Turbo x's Manual Boost Controller
JRC Intercooler
NGK TR6 Plugs
RC Engineering 310cc High Resistance Injectors
Aeromotive LT1 FPR
Cartech FMU(2025)
Vibrant 2.25" cat back
GM S/C Reflash
2 Bar GM Supercharger Map Sensor
2.3L HO Intake Manifold
56mm Throttle Body
Upper Engine Mount
Lower Engine Mount
Autometer Fuel Pressure Gauge
Apexi S-AFC II
This things been sitting in my garage way too long......
Jason
USACi =>146.9db
14.88 @ 90.73MPH =>GM Charger, Motor Mounts, Catback exhaust
i wouldn't run an S/C reflash with a turbo setup, but that's just me.
I was a retard, and now I'm permanently banned.
I'll vouch for Jason in saying this thing is quite a headache lately. Like he stated, before he took it to the dealership it ran pretty good, a bit rich, but good none-the-less. Once the reflash was completed the guy couldn't even drive the car to us; it was running extremely rich at that point. We adjusted his fpr down to around 35psi at idle and 50-55? (correct me here jason) for when it sees boost. It helped but it definately needed more work. So then we figured he should get a wideband to check his AFR and we were hoping we would be able to adjust the FPR to get a decent AFR at idle and at boost. But as he stated, the AFR's are unstable. For example, we can turn the idle pressure down and get it in a constant 11.2-11.7:1 range, however if he gives it gas the things starts going nuts. Let off the gas, the AFR won't adjust back down to 11.2-11.7. Would this be any indication of the ecu having problems adjusting for fuel? He also forgot to mention that he is throwing a misfire code as well.
Lastly, we figured the end all to this mess would be a SAFC.... Got it all wired up, tried adjusting the hi-lo points and nothing. We know the likes of dragracemyz24 and others have gotten the reflash to work. Matter of fact, I believe Jason's setup it almost identical to dragrace's. Could anyone chime in to what you might believe is wrong or if we're tuning this thing incorrectly. Hell, your SAFC settings, pressure at idle/boost, ect would be much appreciated.
Are you positive you have the correct MAP sensor?
sig not found
Do you still have the FMU & the trying to use the reflash?
"The FACTS are always subject to CHANGE once the TRUTH is applied"
"In the entire history of man the only stupid questions are the ones that don't get asked"
first off, the GM program is ment to run boost all by its self.... all that other @!#$ you have may be messing up your boostprogramed computer.... sence thats ment to make a non boostprogramed computer run with boost.
secound..... ive seen the
RC Engineering 310cc High Resistance Injectors
cause problems like this too, maby try geting the GM injectors.
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
my car idled like crap for about 10 minutes after the reflash , and on occasion when i tip the pedal it trys to stall , more so with the a/c off , mine is also a auto , and i am running the gm s/c
i think mine ran better before the reflash , but its never run off the scale rich , it idled fine with the s/c injectors at 50psi idle
it did run a better a/f before the reflash , i was seeing high 11's and low 12's , after i see mid 13's and low if im lucky
i dont remember speed having any problems with his cav running a turbo , tell he ran to much boost
that wasent his problem... he had a old O2 that went bad.....
and your AF#'s idn.,... mine is nice and in the 12's with a 2.5" pulley and stock SC injectors and pump.
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
Were you running a check-valve for your MAP before, and did you remove it once you got it reflashed?
14.330 @ 96.37mph
I have the gm reflash and 2bar with the RSM blower. Auto. Stalls once in a while when put into D when first started if I don't let it warm up a bit
what's the most psi someone is running with the 310cc injectors?
I plan on upping to the stage 2 RSM pulley for about 10-12 psi and just wondering if my 310cc injectors will handle that.
'00 Grand Am 2.4L LD9
http://www.cardomain.com/ride/816505
Well, I ended up doing some checking, and somehow, I had another stock 1 bar MAP on. I went ahead and picked up a cobalt SS 2 bar, and it seems to be running fine now.
But it sounds like the piston is flopping around like maybe a blown ring, tommorrow I am going to run a compression test, and see if it's true. If it is, I think I'm just gonna replace the motor and leave it stock..........
Jason
USACi =>146.9db
14.88 @ 90.73MPH =>GM Charger, Motor Mounts, Catback exhaust
mixing up the map sensors will do that.......
Spotabee Racing wrote:i wouldn't run an S/C reflash with a turbo setup, but that's just me.
why not?
SPD RCR Z -
'02 Z24 420whp
SLO GOAT -
'04 GTO 305whp
W41 BOI -
'78 Buick Opel Isuzu W41 Swap
cause spotabee goes around saying what he thinks and no necesarily whats right.
the gm reflash works just fine on the 2.4 w/ a turbo. I have seen 2 and i reflashed both.
i have reflashed 3 2.4's and can say this.
the reflash works good for
2.4 turbo
2.4 supercharger prototype
2.4 rsm supercharger.
so yea
IT WORKS JUST FINE YOU JUST HAVE TO MAKE SURE YOU USE THE RIGHT MAP SENSOR.
can anyone get me a part # for the right MAP sensor to use with the reflash?
Thanx Charles
anyone please
Thanx Charles
The reason I would prefer not to use a supercharger reflash setup is because for one I'm not too knowledgable about its compliance with boost, timing, fuel, and the likes. I haven't really seen many people push the PCM to its limits of compatability thus far. And based on the differences between powerbands, when the motor makes boost, the way i see it, is that a turbo setup would run leaner at higher RPM's. But I didn't proclaim myself to be right.
I was a retard, and now I'm permanently banned.
Spotabee Racing (The Fake Z24) wrote:The reason I would prefer not to use a supercharger reflash setup is because for one I'm not too knowledgable about its compliance with boost, timing, fuel, and the likes. I haven't really seen many people push the PCM to its limits of compatability thus far. And based on the differences between powerbands, when the motor makes boost, the way i see it, is that a turbo setup would run leaner at higher RPM's. But I didn't proclaim myself to be right.
so your saying a computer never ment to see boost, will run a turbo engine better then a computer that was designed to see boost? You might not be proclaiming yourself to be right, but at least think about what your saying before you say it.
The S/C reflash was designed to read boost, and be safe enough that GM could put a warrenty on it. So that means it runs OVERLY safe for the S/C aplication. Now when a turbo is put on there, sure the boost doesnt come on exactly the same as the S/C, sure we are running more boost....... but at least the BASE map is there. It can sense boost, and adj. for it. It retards the timming. It increases Fuel Injector pulse width. I'd rather run the reflash and some larger injectors, then add a SAFC, a Timming controler, and an FMU........ all on a stock ECM.
Now, if some tuning software ever comes out, I believe the S/C reflash is going to be a great starting point for all of the boosted J's on here..... Even the 97-99 ones that were not able to run the reflash before, can now benifite from it.
SPD RCR Z -
'02 Z24 420whp
SLO GOAT -
'04 GTO 305whp
W41 BOI -
'78 Buick Opel Isuzu W41 Swap
