Plugged in my scan tool and found two codes stored. CEL never came on so that’s obviously not working.
CK5
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I'm not saying that is your problem(the missing common ground for all the remaining unused O2 sensors) because I really have no idea. Mine isn't running yet, with a million other questions before it even starts.
But, the guy from LT1SWAP.COM, I do remember him saying specifically, that CEL and running rich is a very common problem with these 8.1 swaps, and it is mostly a result of that common ground that the remaining unused O2's all need, in conjunction with the actual signal wire on each one needing to be deleted at the ECM.
So, choose your poison...
Oh yeah, and GM ecm programmers can eat a fat bag of donkey weenuk!
But, the guy from LT1SWAP.COM, I do remember him saying specifically, that CEL and running rich is a very common problem with these 8.1 swaps, and it is mostly a result of that common ground that the remaining unused O2's all need, in conjunction with the actual signal wire on each one needing to be deleted at the ECM.
So, choose your poison...
Oh yeah, and GM ecm programmers can eat a fat bag of donkey weenuk!
Long term fuel trim bank 1 is obviously what's messing you up.
Let's stop, get back to basics. That's what almost always saves me, is get back to basics. All this fancy schmancy ecm, wiring harness BS is usually just that, BS.
The ECT isn't up where it should be for proper diagnosis. 180° minimum.
You map is reading pretty low also, infact way lower than it should ever be.
I'm going to step off my diagnosis high horse for a minute and ask you straight away.
Is your MAF sensor of known good quality?
The reason I ask? I've been working on these basturd step children of sequentially fuel injected engines from Ford the early 2001-2007, 3.0litre for way too long. If you get some generic readings from any one of the sensors it uses, because of bad sensors that are slow to respond or have poor internal grounding, or, have a small air leak that undetectable through looking at it with retired age eyes. ****! Pick something and causes these POS ferd products to throw the fuel trim through the roof.
I had one that went through 4 MAF sensors, before I finally laid down the 350 bones, and it brought the fuel trim down where it needed to be, (under 2.5%) when compared to the short term fuel trim. And havnt had a problem since. **** ferd and their overly sensitive ECM parameters. And GM too!
They're just as bad, if not worse.
At least ferds garbage is kind of available and not priced to where only Trump and Elon can afford to buy them.
A MAF sensor for an 8.1, of known good quality (brand name is everything. (BOSCH, DELPHI) is going to run you every bit of 350 bones, plus shipping and waiting 2 weeks for it.**** THEM!
Just buy a good name brand MAF sensor. Clear all the codes and data. Install it, get engine good and hot. Then let's see what it does. You should be able to watch your fuel trim in real time
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What I'm saying is you've got more than one issue.
So ECT is now where it's supposed to be.
Fuel trim, long term will take a long time to bring down, (read over 5-7 drive cycles of cool down heat up to operating temp, exceed 35mph, all while running perfectly) that's why it's easier to clear all the info and start over.
So now, you need to get the LTFT1 down to with 2.5% of the other readings.
My bet is, just because I seen it in Ferd products, you have a bad MAF sensor.
So ECT is now where it's supposed to be.
Fuel trim, long term will take a long time to bring down, (read over 5-7 drive cycles of cool down heat up to operating temp, exceed 35mph, all while running perfectly) that's why it's easier to clear all the info and start over.
So now, you need to get the LTFT1 down to with 2.5% of the other readings.
My bet is, just because I seen it in Ferd products, you have a bad MAF sensor.
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What are your O2 sensor reading at operating temp?
MAP sensor and MAF came with the engine.
Couple more pics with RPM
Couple more pics with RPM
They should be "bouncing" between rich and lean, very quickly.
My mistake, MAF sensor is what you need. Not MAP
0.3v-0.7v
Bouncing back and forth quickly?
The point I'm trying to make is,
Everything says engine is running good, except fuel trim which sets a code.
Get a new MAF sensor.
Everything says engine is running good, except fuel trim which sets a code.
Get a new MAF sensor.
I should probably try and clean it first.
Yep, they appear to be fine.
It’s running really smooth, just rich out the talpipe.
I tried cleaning several of them to no avail.
Get a new one, good brand name
Get a new one, good brand name
MAF sensor!
And the MAF value stays at 0.02 at idle, moves to 0.08 @ 1500 rpms
Exactly!
Get a new one!
Get a new one!
Delphi available locally.
