Still don't quite understand why my car only runs on HW1 in and out and stalls on HW4 in and out.

Anybody have anything?

I would assume one or two wires are taped wrong but don't know which ones.

Also I would think it's not adjusting it exactly right since HW4 is supposed to be right.

Also Why run 39 and 40 percent throttle and not somthing further apart like 15 and 75 percent like Apexi suggests.

Let the "discusion" begin.

 

Well I can answer this question.. Pretty much because @ 39/40 or ecu will not reset itself. Something about being in a closed loop vs open or something rather..

 

THats if it's set below 40 percent...at 75 it's not.

 

I think its time to recheck all the connections and pins and see if they're wired to the right ones.

-Ben

 

Thats what I wanna know which ones could be out. It's not all that complex of a wiring setup I don' know what they could have done to make it work like that...acually work, and not work on teh "suggeted" settings that apex says...It's odd.

 

Are they soldered in, or wire tapped? I went ahead and took the risk of wire tapping everything, and no problems here. I really don't know why your having trouble on the org suggested setting and not on your initial setting.

-Ben

 

I dont' honestly know, I havne't looked yet as I don't know exactly what would be backward. Right now it's sitting at the shop getting the 2.87 and other stuff done along with checking out the afc, but i'd like to have some idea as to what to look for, for them and me.

The thing worked fine for over a year b4 i bothered to look at the settings. Then when I looked and checked boom trouble. For that year it ran rich even with -34 percent on teh stock 3 percent correction factor...Which is one of the reasons i'm thinking hw 1 is not good enough...But i gotta find out why it's not working on 4.

As far as the setting it on 39 and 40 and being the only way it woun't cancel everything out thats not true cuz i did 15 and 75 and felt it ran fine for that year. IN fact I think it felt better than on the 39 and 40. It didn't seem to hesitate. Both ways it ran rich...Which again brings me back to thinking HW 4 needs to be on as suggested by Apexi, other wise It's not correcting the sensor it thinks it is.

I keep wanting to call Apexi but my time during the day to sit down and talk to um hasn't been there.

 

to the top

 

I ran 2 in 2 out with no problems... even tuned the car with that setting (switched to 4/4 now). The reason why you want 39/40 is because a very reliable member found that point to be the closest for closed/open loop. That's where the ECU changes from reading O2's to using the pre-programmed fuel map.

Are you using the Haltech on your car?

 

Haltech E6K? No...Still running factory ECU, with the apexi safc peice. With it set on 1 and 1 in/out, woun't it adjust it wrong? Meaning I thought Apexi picked 4 for the reason that it was the only way to properly adjust the fuel. Whats the real diff between 1 and 4 and anyway? I just still can't come to terms with running -34 percent and having it clearly still be rich, I think somthings gotta be off, and to me it seemed like maybe now this may be at least part of it.

 

Nope, the AFC is not as off as you think. I ran in the high -2X% at some points with the 3.125. I've also helped a member, maxboost00, tune his car with the AFC. He hit low -3X% with the AFC and still ran rich. Did you know our injectors are 259cc instead versus 4th gen's 239cc? Whatever the 4th gen guys are telling you regarding their AFC setting... throw that out the window because our are different.

2/2 and 4/4 worked for me while tuning.

 

Aight now that I know some guys are up in the 30's I feel a little better. But do you know what would cause the car to only run on 1 in and 1 out, and stall on 4 in and 4 out...I really don't get that, especally if you ran 2/2 and switched with not problem to the 4/4...You think when I tune it with all the new stuff on I should turn the correction factor up say to 6 or 9 percent so I don't have to turn the afc down so much.

 

No clue on why it works with 1/1 vs. the correct 4/4 setting. Again, check the wires to see if they are contacting the ECU wires correctly or not.

Correction factor up by 6% or 9%? Which setting is this?

 

Which wires would be outta wack?


In the Etc menu , it says cr + or - 3 % and you can turn it up to 6 % 9% 15% and 30%

 

All of them. Make sure the ground wires are 1 cm apart on the ECU wire.

I left mine at the default.

 

All right...Whats your opinion on the cr factor?

 

Left mine at default and I haven't tried messing with it.