How do these logs look

[JDR7919]

93oct ar was 10.9 to 11.1
boost est and 3bar are still off

Let me know what you think.

 

[JDR7919]

I met to say the 3bar is off in the higher hz Im not sure if that matters.
What do you guys think

 

[DirtyBirdRacing]

Hi,

In the first log you posted it looks like your A/F ratio is way too lean for 93 octane. According to your AEM WB gauge it is 12:1+ which is too lean. This may explain why your timing is so low, even though there is not much knock retard shown.

In your second log,you richened it to about 11.3:1-11.4:1, this is along the right path. Notice that you picked up a couple of degrees of timing. I would shoot for an A/F ratio of 11:1. Then mess with the timing. Also, I think the timing is still lower then it should be, I'm not sure why. You dont show any knock counts, and your intake and coolant temps arent in "timing pulling" ranges I think. Is your base timing correct and have you checked it with a timing light?

Bill

 

[JDR7919]

My wideband is off a little. My a/r were 10.9 to 11.1 according to the gauge in the car. I pulled that much timing to make sure I dont knockt. I think I can start adding some back in what do you think?
I have not checked timing because I cant change it because its a 99 so it is set already.
Thanks

 

[DirtyBirdRacing]

Hi,

I think that you can start adding some timing back in, perhaps a degree at a time.

Also, why do you say your wideband is off? I would look into that and fix that before anything because a knock sensor and a W/B is really the only way to get an idea of whats happening inside your engine. EGT also, but I personnally dont put much faith in them.

Bill

 

[JDR7919]

I have the aem wideband and there is a little difference between what dsmlink shows and what the aem gauge shows. From what I have read its a common problem so I just have to go by the gauge in the car. Im going to get the Lm-1 soon. I dont worry about egts just watch for knock.
I will start adjusting the timing and see how that goes.

 

[LandoAWD]

There is a buffer circuit that should fix the UEGO issue. I have the same problem, but have yet to snag the circuit.

 

[spyderturbo007]

Doesn't v3 allow you to create your own voltage to AFR curve? If so, you could use the UEGO manual and input the data to draw the correlation curve.

Kris - can you elaborate on the buffer circuit? I've been looking for a way to fix the discrepancy.

 

[LandoAWD]

ecuinputdata [ECMTuning - wiki]


Ta-dow

 

[JDR7919]

Has anyone used the buffer with a 2g and uego and had success. I have read about the buffer on link but was under the impression it was more for 1g.

 

[snowborder714]

I believe people have, but they ran the wideband through the EGR input.

I'd say go to the V3 section of the forums and search the whole section for "buffer" and read the threads. If you still can't find out, why not just get it and try it out? It's not that expensive and it couldn't hurt.