1982 C/K 6.0L Caitlyn Mall Crawler (Interior time)

[6872xtc]

I don't know enough to tell you anything. What is the vertical scale? Throttle percentage?
The boxes at the top of the screen tells me that you have WOT at 14.2. That seems lean too me, but the engine should tell you if it is.
Is the idle rich enough to avoid a stumble when you crack the throttle?

 

[Fastereddie]

Your wot should not be 14.2 that’s too lean
You should be closer to 12.5-13.5max

 

[Babaganoosh]

Your wot should not be 14.2 that’s too lean
You should be closer to 12.5-13.5max

It’s right around that point for some reason those numbers up top don’t hit unless at idle

 

[Fastereddie]

Those 14.2 cells you have are in the 84 to 98 kpa bins. That’s basically wide open. If that’s the bins your pulling from while cruising on the freeway, something doesn’t seem right. I would expect it to be down around the 50-60 area. Unless your pulling a trailer uphill?

 

[Babaganoosh]

Those 14.2 cells you have are in the 84 to 98 kpa bins. That’s basically wide open. If that’s the bins your pulling from while cruising on the freeway, something doesn’t seem right. I would expect it to be down around the 50-60 area. Unless your pulling a trailer uphill?

That was flat ground barely any throttle at cruise. That was 60-85 mph where I drive the truck at on the highway

 

[Fastereddie]

That was flat ground barely any throttle at cruise. That was 60-85 mph where I drive the truck at on the highway

Ten four. I guess I’m just used to seeing more vacuum than that at cruise. Must be that rattler cam you got!

 

[Babaganoosh]

Ten four. I guess I’m just used to seeing more vacuum than that at cruise. Must be that rattler cam you got!

Maybe, the brakes still work good so I feel it’s got plenty.

 

[Fastereddie]

Are you running 4-5 thousand rpm at those speeds?

 

[Chevy305]

Anyone got a opinion on that afr table?

That blue section at the top right sucks. You're nearly full throttle at high rpm and you're pulling fuel to 14.2. The whole top 1/3 should be more like 12.5.
Your pink section at 14.9 around cruise is totally fine though.

 

[Babaganoosh]

Are you running 4-5 thousand rpm at those speeds?

I’m only running around at like 2500rpm

 

[Fastereddie]

I’m only running around at like 2500rpm

Get rid of that. Your gonna burn it up.

 

[Fastereddie]

This is just a pic off the web. Might help explain the general idea.

 

[Babaganoosh]

What’s weird is when I recorded the run that’s where it was at cruise?

Just looked at the data log, for some reasons my TPS is showing almost 100% again...

 

[Fastereddie]

What’s weird is when I recorded the run that’s where it was at cruise?

Just looked at the data log, for some reasons my TPS is showing almost 100% again...

Yeah that’s definitely not correct.
I would relearn your tps again.
Maybe you loaded a tune that had a bad tps learn or something. I’m not sure how the terminator does it.

Looking at the top of your target afr screen, it appears you can enter 13.8 for idle, 14.7 for cruise, and 12.8 for wot. Then click the tab to populate your table.

 

[Babaganoosh]

Yeah that’s definitely not correct.
I would relearn your tps again.
Maybe you loaded a tune that had a bad tps learn or something. I’m not sure how the terminator does it.

Looking at the top of your target afr screen, it appears you can enter 13.8 for idle, 14.7 for cruise, and 12.8 for wot. Then click the tab to populate your table.

Going to take a look at it, maybe the cable needs to be shortened up a little, I bet once I get this figured out it should be tons better.

 

[Babaganoosh]

I shortened the cable up and it seems to be working a lot better, here is a screen shot at 73mph and 2215 rpm

Why is it so high on MAP? @folkenheath @Fastereddie

 

[Fastereddie]

I shortened the cable up and it seems to be working a lot better, here is a screen shot at 73mph and 2215 rpm

Why is it so high on MAP? @folkenheath @Fastereddie

View attachment 409523

That’s a question that needs to be answered for sure. Where is your “following” dot with key on and engine off? And then at idle?

 

[Babaganoosh]

I suspect a vacuum leak from somewhere. I thought I fixed it with the new throttle body but I bet it’s still messed up.

 

[folkenheath]

Yeah that’s definitely not correct.
I would relearn your tps again.
Maybe you loaded a tune that had a bad tps learn or something. I’m not sure how the terminator does it.

Looking at the top of your target afr screen, it appears you can enter 13.8 for idle, 14.7 for cruise, and 12.8 for wot. Then click the tab to populate your table.

He can do that if he takes it off "2D table" mode, and puts it back in "simple" mode (drop down top left). That switches between manually entering the entire table, or just entering 3 values it and populates the table.

I suspect a vacuum leak from somewhere. I thought I fixed it with the new throttle body but I bet it’s still messed up.

It could be a vacuum leak, that's definitely possible.

Do you have your ECU main power and main ground directly to the battery terminals, not some junction block somewhere?

Do you have the correct MAP sensor selected? Or are you using the internal one? Did you select that?

Any time you change the cable or throttle position you need to recalibrate your TPS.

 

[Babaganoosh]

He can do that if he takes it off "2D table" mode, and puts it back in "simple" mode (drop down top left). That switches between manually entering the entire table, or just entering 3 values it and populates the table.




It could be a vacuum leak, that's definitely possible.

Do you have your ECU main power and main ground directly to the battery terminals, not some junction block somewhere?

Do you have the correct MAP sensor selected? Or are you using the internal one? Did you select that?

Any time you change the cable or throttle position you need to recalibrate your TPS.

Main power and ground to battery and yes I relearned the tps