awesome, looking good!
Thanks, very happy with how it's running now vs. when I bought it.
I'm very surprised that w/ 140k and the original catalytic converters that it even passed smog!
Especially since @ the rpm they dyno test @ is fairly low, 1372RPM in the case of my test.
Even running pig rich (IMHO) w/ BLM's in the 11x range, I'd venture a guess that testing it now would show a marked improvement in test result numbers?
Tony
'88 Jeep Grand Wagoneer (aka Babywag)
'67 Jeep J3000
'07 Dodge Magnum SRT8
in round figures, a blm of 110 means about ~15% fuel had to be removed to correct the rich condition. not a huge deal, but it does mean before the trims kick in, you were running 'bout ~12.5:1 instead of 14.7:1
Technically it shouldn't be running "rich" if everything is working correctly. But it sure seemed/felt like it.
I know low BLMs don't necessarily mean rich, just indicate it's pulling fuel.
Keep having to remind myself though.
Testing numbers seemd high to me, but @ least it passed.
Tony
'88 Jeep Grand Wagoneer (aka Babywag)
'67 Jeep J3000
'07 Dodge Magnum SRT8
just because trims fix cruising fuel doesn't mean all transitional fuel (most of which isn't really tuneable in $EE) is also trimmed... so until your trims are in line, it's normal for it to run like a bag of shit.
also in every bin i've seen power enrichment by default (and obviously when using a blm locker) only uses trims higher than 128 as a base. so it'll help compensate for lean conditions a bit, but happily dump a ton of fuel if trims are under 128...
steve-o,
I never had issued with connection to b bodies or d bodies until the latest update. Flashing, reading, all of it was great. I will try what was suggested.
OP the reason the o2 swing voltages are different is the distance the cat is from the manifolds on the b bodies. Not the differences on where the manifold discharges the exahaust to the cat, and also the firing order of the engine was another reason. There are differences in the 94/95 cars to the 96 cars too. In general I set them all to 450mv.
Chris.
Yeah, as evident by crappy idle @ cold start and cold/warm/hot restart. I could feel it running rich w/o EEHack running.
It runs a lot better now, and adjusting the stoich to 14.3 is what I have done on everything I've tuned.
Today's fuel isn't what it was back in 1994.
I'm no expert, and learn something new all the time from reading/asking/experimentation.
Always nice that folks are so willing to help!
One of these days I need to yank the wideband from my Jeep, and install it on the Caprice.
I already added the wire on the PCM, just have to get motivated enough to crawl under there and weld in a bung.
I have debated just pulling the o2, and using the simulated signal, that has worked in the past for me.
Some say it isn't accurate, and causes issues, I never had a problem doing it that way in past.
I have an Innovate MTX-L and really like it.
After I get the MAF dialed in, I'd also like to tune the VE tables.
Tony
'88 Jeep Grand Wagoneer (aka Babywag)
'67 Jeep J3000
'07 Dodge Magnum SRT8
So just a follow up...I grabbed a spare junkyard pcm several months ago and I pulled the .bin off.
It was actually a 4.3 baby LT1. Same year 1994 even.
Same wiring harness, same 02 sensors, smaller engine(obviously).
However, interestingly enough the o2 swing voltages are the same side to side.
5.7 table and 4.3 table for comparison. Still seems odd to me for the diff in the 5.7 .bin
Last edited by babywag; 12-01-2016 at 10:01 AM.
Tony
'88 Jeep Grand Wagoneer (aka Babywag)
'67 Jeep J3000
'07 Dodge Magnum SRT8
Hi,
Can you post the 4.3 bin.
I`ve been looking for it a long time.
Bookmarks