alright, i need someone with tuning experience, mainly with HPtuners to inform me on what i need to do. I have a 2000 2.4 cavy that is turbocharged but the car came with apex'i safc2 and the gm s/c reflash. in a nutshell the car cant idle for crap unless u wait for about 10 or 15 minutes for the low rpm fuel richness to go away... What do i need to do in hptuners to get the car to stop dumping so much fuel at stock without getting deep into tuning?

The big issue is the car has 44#injectors and the s/c reflash reads 37# or something of that nature right? well if i were to change the tune to read the 44# injectors will that help it? The bad symptoms that it gets are it dumps too much fuel on startup and in first gear, so u cannot start the car without hitting the gas pedal to get some of that fuel out and u cannot drive too slow in first or it will flood.. are there any minor things i can do without getting deep into the fuel tables?

i want to be able to idle it without the added fuel...im thinking if that is changed then first gear should be fine as well..

What I would do is take the SAFC off first. Then start with setting it up for the correct injectors it has, and retune all VE tables.



FU Tuning

the safc isnt connected..im gonna sell it as soon as i find a buyer... i found a guy that said he would take a look at the tune its on now and give me something that will get it running right...

Ditch the SAFC, get your credits and wideband. I will help you get started......



P&P Tuning
420.5whp / 359.8wtq

yessir!!! workin on that now.. im having trouble tho.. i dont know how to get the wire portion off the car leftover from the safc so im gonna have a guy look at it. i got buyers ready for it too...

You have to WAIT for the richness to go away? Sounds to me like you also need a heated 02 sensor for your primary sensor.

SAFC connects to the map sensor (intercepts, so 2 wires), taps into the TPS (1-Wire), taps into tach signal (1-wire), and then has power and ground. It shouldn't be very hard to remove at all if you know where all those wires go.

I left mine in, removed it from the MAP and left it hooked up to the TPS and Tach signal... it's a glorified tach for me now - it's far more accurate than the one on the dash and it reads to 8000 rpm, which is just above my redlne.

With that said, all you'll have to tune is the injector constant, but you cannot do this without a wideband. As soon as you have those tools it'll be a matter of following a few instructions and trying some variables until you get the stoich idle you want/need. Then you're good to go from there.

The #1 thing that most people get excited about when I tune their boosted motors is cleaning up their rotten rich idle, and giving them back their low-speed driveability. It's amazing how much you miss such a simple thing once it's gone.

-Chris-



-Sweetness-
-Turbocharged-
Slowly but surely may some day win this race...