Extender Extreme - 83# inj - lean base setting?

[Warp6]

My 83's are pretty rich on the low end. I keep getting a code 45 (oxygen sensor RICH)(new Denso sensor) while driving around slow or idle. I set the fuel pressure per instructions to 45# (line off). Is there a lean base setting in the Translator Plus? If not, should I drop the fuel pressure at the regulator and make a change to WOT in the Translator box?

 

[NC87GN]

45# should remain as base FP and adjust with the T+ dials. How rich is it? BLM's? How about normal drivin? I've carbon fouled out a new denso from running too rich. After it cooled down I replaced it with an AC Delco (only spare I had) and numbers came back up. Car would sputter for no reason at all and decided to replace it first. HTH..

M. Banas
87GN

 

[salvageV6]

Should be a lean MAF setting for what size MAF you are using on the T+.

First knob I think, don't have my cover in front of me to look at.

I think all those controls are still valid with the Extreme, never read where they weren't.

 

[TurboBob]

what chip number

what are the cruise BLM's What are the idle BLM's

What cam?

What O2 sensor?

Leaded gas?

Bob

 

[Warp6]

Originally posted by TurboBob
what chip numberESU65BOF

what are the cruise BLM's What are the idle BLM'sHaven't looked at this

What cam?214/214

What O2 sensor?fresh Denso

Leaded gas?unleaded 100

Bob

__________________________________________________

Originally posted by salvageV6

Should be a lean MAF setting for what size MAF you are using on the T+.

First knob I think, don't have my cover in front of me to look at.

I think all those controls are still valid with the Extreme, never read where they weren't.

That's kind of what I was thinking

 

[Warp6]

Id' like to understand the chart that is in the original Translator instructions booklet. I'm not clear on the MAF BASE chart.

New Style MAF - Old Style ECM New Style MAF - New Style PCM

I'm guessing this means LT1/LS1 meter and Buick ECM. I don't understand the next part that says New style PCM

Then as you go down the chart from number 5 setting all the way down it says not used in the first column. Then you go over to the next column and it has all the rich/lean settings with some "not used". What applies to the Buick?

 

[TurboBob]

That stuff, and the sticker inside the cover are for regular extenders...

For the extreme, set the MAF base to zero or 1 for now.
Set all dip switches ON. (1 is a little richer)

What MAF are you running?

Go check the blm's at cruise and idle. Watch the BLMs
just as you pull up to a traffic light, and see what the idle does.
If the BLM at idle is 'normal' and then starts to climb, that indicates another problem.

What is the lobe separation of that cam? Is that an Erson 214?
Is that a heated O2 sensor?



Bob

 

[Warp6]

Originally posted by TurboBob
That stuff, and the sticker inside the cover are for regular extenders...

For the extreme, set the MAF base to zero or 1 for now.
Set all dip switches ON. (1 is a little richer)

What MAF are you running?LS1 31/2"

Go check the blm's at cruise and idle. Watch the BLMs
just as you pull up to a traffic light, and see what the idle does.
If the BLM at idle is 'normal' and then starts to climb, that indicates another problem.I'll do this

What is the lobe separation of that cam? Is that an Erson 214?It's a Comp. Got it from PTE after the big econo-cam deal. 212 separation, I think

Is that a heated O2 sensor?No, it's a one wire Denso. Just put it in. Should I go to a heated sensor?

Bob

Bob, in order to lean the idle do I need to play with the BLM's? Is there a setting for MAF base besides "1" or "0"?

 

[TurboBob]

I just want to find out if the idle is truly rich or if the BLM's are learning up in error (a cold O2 sensor, or big cam will cause this)

The solution depends on the BLM data you are going to get.

There are other, non-standard, BASE settings, I need to look them up.

Let me know what you find, and we can tune your chip to fix it.

Bob

BTW, whose ECM mod are you running?

 

[Warp6]

Originally posted by TurboBob
I just want to find out if the idle is truly rich or if the BLM's are learning up in error (a cold O2 sensor, or big cam will cause this)

The solution depends on the BLM data you are going to get.
Bob, would it help if I send you a DS file to look at?

There are other, non-standard, BASE settings, I need to look them up.

Let me know what you find, and we can tune your chip to fix it.

Bob

BTW, whose ECM mod are you running? I bought the ECM from a member here. Should I find out who modded it? There may be a tag or a sticker on it.

Thank you for your help

 

[TurboBob]

A ds file would help a ton.

Check the ECM for stickers/labels. There are some mods that are not 2.4 amp peak-and-hold that cause rich idle issues.

 

[Warp6]

Originally posted by TurboBob
Check the ECM for stickers/labels. There are some mods that are not 2.4 amp peak-and-hold that cause rich idle issues.

Modded by Modern Musclecar....is this a good thing?

 

[TurboBob]

Yep, that's a good one!

Send me the DS file.
Or at least the BLM details

 

[Warp6]

I just took the car out for a little while. It coded while coming up to temperature then acted fine from then on. BLM's were right around 90. I'll e-mail a few files over as soon as I get them from my laptop.

 

[salvageV6]

Bob do you have the part numbers of some of the injector drivers that AREN'T 2.4 ampere peak/hold drivers?

Bought a used one too. No stickers but I did open it up to have a looksee.

Just gotta find that napkin I wrote everything on...

 

[Warp6]

Bob, I sent the DS files. Any thoughts?

 

[Eric Stage I]

Warp,

These big injectors are sensitive to fuel pressure, especially at idle. Fuel pressure gauges can be off, and some regulators might not subtract enough pressure under vacuum. I would be tempted to reduce fuel pressure a couple psi and see if the blm's come up off 90. Once it comes off 90, the ecm will be back in control and the rich code should stop.
Every car is different and your car seems to be pumping out a little more fuel than expected.

Regards,
Eric

 

[TurboBob]

the car is rich at part throttle too.

try resetting the ECM then programming parameter 11 to a 1.

I will look further into the files.

Bob

 

[Warp6]

Originally posted by TurboBob
the car is rich at part throttle too.

try resetting the ECM then programming parameter 11 to a 1.

I will look further into the files.

Bob

okay, I first reset the ecm. Then I put a "1" into cell 11. Set a code 45 getting the car up to temp. BLM's are still settling at 90. After the first test, the idle would "hunt" flipping back and forth from 90 to 128. What is it doing? Bob, I am sending you 2 more files. One is a cruise test exactly the same test as the last files I sent. One is a shot of it "hunting" at idle. Maybe you'll see something in it. I appreciate all of your help. Thanks, Craig

 

[TurboBob]

got the files, sent you a reply.

Bob