This thing is starting to drive me nuts!

[ALB]

Ok been fighting to get my 99 running decent since installed the 3bar tune day or so ago.

What it is doing now is being pig rich on wideband,at idle when you rev it a bit off idle. Don't want to drive it and don't want to run it long being so rich.

Its basically fllooding now when try to start it.. It does start but you have to hold foot to floor to clear it.

I have tried a few things and will guess try a few more.I have just put in a different 3 bar sensor this one is from fast to make sure it wasn't a dud 3 bar sensor.I see the map values change at idle so assume its working.I have of course failed the maf and unplugged it. I don't think have any vacuum leaks get like 20inches steady. I thought my new adjustable blow offs might be problem so put non adjustable bosche back on that came with my aps twin kit.
I seem to be running on all cylinders but it seems 3 bar is not compatible with misfire detection which is annoying as misife is very useful. I would go back to maf but at my power levels dont think that is good idea.


I have tps at zero and 100 % and iac counts seem in range and think tps value as well.

So what have I tried. I am running 120 delphi injectors low impedence with harness and aem box. I thought maybe box was messed up but car does start and run. I have checked plug wires and injector plugs and it all seems ok.

I have had injectors first at 58psi and then at 40psi. I think have the ifr pretty close at those psi. the websites don't seem very clear on the specs.
Racetronix site is really unclear with the heptane and gas stuff .
On other site they said they did 111 on gas at 43.I have them at 110 right now at 40psi. Think formula would give 106.44 for 40 if that 111 on gas is right. But if went to 106 it would be even richer than now right?

I just a minute ago for something to try entered min pulse width of 1 and default of 1. Seems no better idle and if you gently rev it show same rich and 10s on the wideband.
I tried to lower ve down to 11 lowest on my ve from like 0 to 1200 rpm and to 50kpa range. I kept taking down the ve and it don't seem to be helping at all. Was I supposed to raise the ve numbers sure higher is richer?

I am not sure what else to try.I guess for experimentation may go to way higher on injector ifr just as test say set them at 130 and see what happens to idle and low rpm afr. I could also lower fuel pressure of course to 30 or 20 line on from current 40psi line on but would think at certain point it would start to not flow well. Or could raise up pressuer and then do same thing.

I don't think should take ve number to zero or near zero?
I have not really touched any other idle or low rpm parameters.
I have my pe from non boost at like 12.3 as heard 10% ethanol that I run make afr go .5 leaner. So then would net 12.8 theoretically if ve and all that was right.
I have my boost pe at like 10.3 again figuring safe 10.8 on boost.Its across the board from 100 up but can't see that affecting idle and low kpa near idle.

Getting really frustrated with this car right now. Its a nice day out and we have crappy weather coming and haven't even been able to drive my car this season.

I am not good at posting files and stuff. I saw help file and will try to figure out how to send it but if someone could still give me some tips here on what to try or what can make the car run so pig rich .

I thought the 120s would be ok espeically in low impedence form. I was going to go to high impedence 80s. I had my car running decent with the maf and 60s last fall. No complaints.Idle etc were all good.

So please give me a few ideas guys.

[ALB]

Oh and can't get 3bar pid and sure followed the directions excactly. Just getting default config too not even sure how to get it to check all my pids for car to see if now the 3 bar has been added .
There seems no direct way to get it to poll the car for pids?

I get the default stuff working ok .Do you have to have the car actually running so it deletes the maf and map and lets you insert the 3bar or maybe I have version of hptuners missing the 3bar .I read this other guy back in 07 had same problem and you guys sent him guess a file or something so he got the 3 bar pid to work.

Is there any chance in the future that guy could have misfire detection with speed density or does that depend on the maf. Are there any mafs that can work to 1000rwhp range might ditch this speed density stuff.

[ALB]

And what about real time tuning for the 3bar sd. I am already pretty sick fo tune and flash tune and flash.

[ALB]

Ok many thanks to Russ Kemp for coming over and really helping me out!
He got my 3 bar pid working for me and dowloaded a newer version of hptuners. Tried a lot of stuff on my car but main problem is can't get the pulsewidths down on my car with those big injectord. Did kind of get them down briefly and car ran a lot better but then it would slip down into being pig rich again.
He has couple ideas but really wondering how anyone can run the 120s on hptuners maybe need standalone to do it??
Anyone running the new 80 high impedence they could maybe work for me. Might have to get them if can't get the 120s to work.

[SuperC1]

Ever get this fixed?

[ALB]

Huh? Made a lot of different posts since this one SuperC1. But one thing after another.
Fixed the cam sensor problem was connector issue. Then put in 60 pounders high impedence just to make 100% sure their was no problem with the cam sensor again as it would have flatbedded the car.

Then had big problems with car running wot without breaking up bad. It turned out to be burnt plug wires. Fixed them and problem came back had some more burnt plug wires.
Think have fixed that by using the factory heat shields now.

Still have some problems with rich decel and now some strange long term trims on one side.Running open loop currently since think have bad o2 sensor. Will be putting in new denso 02s likely this week with band new GMPP ignition wires as well. Will put car back to closed loop mostly for fuel mileage reasons.

Next season when up the boost and upgrade to larger turbos will go back to running my 120s or possibly sell them and run 80 high impedence injectors.

Hoping to finally get these tuning issues sorted out and hit the dyno and track likely next spring.

[SuperC1]

Yea, I think I finally nailed down a lot of my problems. Ended up having to pay to have my turbo rebuilt, changed the tune up some and everything seems to be working. I can't upgrade anymore unless I get an entire new kit. Twins would be nice but funds have been limited lately, so I'll just stick with what I have so far.