Tuning help with my cam

[geldartb]

ok well today i got it to idle and run for an extended period of time but its still sitting rich.

i have a bunch of scans from today and the bin file for the car im posting up. so here i am to pick the tuning guru's brains for some area that i have overlooked.

i got a bunch of small scans mostly when i was trying to find a good idle.

on a positive note the noise is subsiding and it didnt foul the plugs.

its running rich and runs rouch(ie not assoc with the roughness of the cam)

specs of the car
1357 cam from wot-tech detailed specs for cam
INT 230 EXH 236 @.050
112 LSA
515 INT 515 EXH lift at 1.6.1

ported 3400 upper and lower
65mm throttlebody
28lb series 1 3800 injectors

[z34phoenix]

what all did you adjust in your bin so far?

generic things to help with a cam at first are to:
-raise your idle
-lower your timing at idle
-and start like hell doing fuel trim adjustments.

chances are you have too much timing at idle and could benifit from raising it 50-100 rpm

[geldartb]

ive raised the whole idle table and from 122f to 264f in the idle table its 950 and from -40 to 104f its about 100 above what stock was. heres a pic to justify the nonsense i typed.

but it does idle good at 950. might kick another 10 onto the 950 area.

last time i checked i went back to the stock timing for 99 which ironically is the lowest among the grand am years. after 99 they just keep getting higher.

what would i adjust for fuel trim adjustments. refresh me to make sure i change the right thing

[z34phoenix]

i would raise teh 104* to 1000rpm the next two cells raise 25rpm

as far as adjusting the fuel trims... your best bet is to use eddies table modifyer program get a data log and use that program to make the adjustments for you. but first i would start out with a new VE tune. VE tuning will make a world of diff.... if your not sure how to do a VE tune refer to DHP's tuner guide to tell you.

[3400-95-Modified]

I think we came to the conclusion that he may have a bad O2... hence 100mV and lower o2 levels and 20+ trims, but fouling the plugs... and the o2's never change from a 0 trim, till when it gets up to the 20+ So that definately sounds like a faulty o2 sensor to me.

[geldartb]

among fouling the plugs it ate the O2 sensor damn hungry motor. i still got the new ac delco that came with the motor just gotta swap the plug since the 05 has an extra notch inside the plug that i dont have.

VE tune with the cam should be fun. hell doing a reg VE tune on the stock engine was fun, once you unplug the maf the pcm jacks the trans fluid press all the way up so it slams every gear.

ive used eddies thing in the past and it worked good for me before.

[sprucegagt]

The 99 and 05 sensors have different pinouts. You'll have to repin the connector if you plan to use it.

[3400-95-Modified]

I didnt do a VE tune this time around... I just used the 3500 Malibu VE table and called it good enough. My trims settled off very well after a maf tune and so far my WOT is looking a lot better now that i'm using the correct forumula for the a/f gauge.

[geldartb]

i had the 3500 file somewhere but i cant find it anymore.

send that to me when you get a chance Jon, and ill try that for now and hopefully it settles a little bit then ill do a tune.

[3400-95-Modified]

You dont have 3500 heads so it doesnt make sense for you to use those files... I'm just using the VE for the top end that I have.

IIRC HP tuners still doesnt support VE tuning so it cant be THAT critical, I know it will make your trims settle easier when doing a maf but it can't be that important.

Get a good O2 in that bish first, then go from there.

[SappySE107]

Just because they don't offer nearly as much as OBD1 has, I wouldn't say it can't be critical.

[3400-95-Modified]

DHP has the VE support but I don't think its something that he has to rush into doing. he can put that on the back burner till he gets the rest of it square and can get decent fuel trims for the mean time with a simple maf tune.

I'll be doing VE on my sometime, but I just dont have the time to do it right now.

[SappySE107]

MAP systems rely solely on VE, and MAF use it with the airflow to fill in the details since you can have the same flow at different loads and require different amounts of fuel and spark advance.

If I could tune MAF without VE, I would have the 94-95 3.4 DOHC chips done already.

[3400-95-Modified]

Yeah well I didnt say skipping the VE for the mean time was an end all, I was just saying as a quick fix to get his car to be somewhat stable so he can check over the general operation of it.

I know for the best part throttle tune to ensure 0 trims and good fuel mileage you really need to tap into the VE.

[geldartb]

i just want to get it stable so i can get an inspection sticker, i have plates on it but never made it to get a sticker.

but yeah ill try the o2 and hopefully shell be good to go from that.

and ill get that video i promised like 2 weeks ago, would have had it last week but i didnt being the camera.

the idle wasnt bad last week i got it stable but im gonna add a few rpm's to the upper half of the temp range.