Ok that's easy. IIRC the old postings, AIR is a "bad" one in 6E, as it can't actually be turned off. You can minimize the effects, but without modifying the code you can't stop it. I'll find out here in a second!
Ok that's easy. IIRC the old postings, AIR is a "bad" one in 6E, as it can't actually be turned off. You can minimize the effects, but without modifying the code you can't stop it. I'll find out here in a second!
"Frankentruck" is a "1985" K5, TPI 350 '165/6E (Vortec Heads, SDPC2000 base, roller cam, headers), 32 Spline SM465, 205 w/VSS, 10b/14SF, 3.42's and 33" tires. Soon to be boxed frame, '87 sheetmetal, and TPI w/ '727
Air as in Air pump? How would this effect anything? Well who knows what happens in $6E... every bin I can think of Air only works for a short time at startup, only Open Loop to fire up CAT, well some come on during PE, still Open Loop... but none that I know of have any fueling changes or ? in code? So if it's disconnected or not there?
Or did I miss the boat? What's happening?
You want me to come over there and put a real ECM in that thing?
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
Yes please?
AIR divert has an oxygen sensor offset. The "stock" XDF has nothing in there to get rid of that offset.
It may be coincidence, but AIR divert happens right when it starts to run like garbage. Being able to shut that off will at least let me know if I was right or not.
Believe me, I got those '727's for a reason. And I've not been completely slacking, I got the cavity plugs for the connectors from Mouser, so I've made progress lol.
"Frankentruck" is a "1985" K5, TPI 350 '165/6E (Vortec Heads, SDPC2000 base, roller cam, headers), 32 Spline SM465, 205 w/VSS, 10b/14SF, 3.42's and 33" tires. Soon to be boxed frame, '87 sheetmetal, and TPI w/ '727
That's just weird? Why would AIR even come on then? I guess it was used somehow at that point for emmissions? I forget how AIR worked on carb cars, I know CATs were a disaster on carb cars...
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
Or is it CCP? Charcaol Canister Purge? I could see this happening then...
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
Or EGR?
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
EGR is easy to disable, got that one. AIR on the cars as I understand it had three "settings"...divert to atmosphere, divert to exhaust manifolds, or divert to catalytic converter.
Parameter I want to get rid of is "O2 divert air inject mv offset" which is set to 102mv. I can set it to 0mv of course, would just be nice to get rid of it completely since AIR will never find it's way to my truck.
This is what kind of confused me about the 1227747's...AFAIK many were running AIR that operated the same way, but apparently no parameter for AIR offset. I know emissions requirements were different trucks/cars, so that's it I'm guessing.
Is it safe to "delete parameter from XDF" if not used? Things like the shift light settings are useless to me.
"Frankentruck" is a "1985" K5, TPI 350 '165/6E (Vortec Heads, SDPC2000 base, roller cam, headers), 32 Spline SM465, 205 w/VSS, 10b/14SF, 3.42's and 33" tires. Soon to be boxed frame, '87 sheetmetal, and TPI w/ '727
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