High Block Learn

[Fran and Bud]

I use only USPS money orders.
Emblems will ship to:
Bud Todd
1541 Gamby Way
Solvang, CA  93463

Thanks,
Bud
----------
>From: Don Burns <donburns at macconnect.com>
>To: diy_efi at diy-efi.org
>Subject: Re: High Block Learn
>Date: Sun, Sep 17, 2000, 5:30 PM
>

>Thanks for the reply, Dennis. Fuel pressure is running
>better than 41lbs, no evidence of injector leakage. Chip
>is stock, mild. Vacume is 20+ and seems to be well regulated.
>Car seems to be running pretty decent, lots of power.
>But a quick look at the plugs suggests its seeing too much fuel.
>
>This is what has me scratching my head.
>
>Don
>
>
>DenniS wrote:
>>A 160 BLM is saying you are running way lean and the
>>ECM is trying to compensate. First  Iwould try more
>>fuel pressure.  Maybe throw a FP guage on your window
>>and see if the fuel pump is ok.   Anything falling
>>under 38lbs its somthing is wrong. What Chip are you
>>running in your ECM?  Custum or stock.
>>what happens is the BLM tries to compensate for hte
>>int.  if the int is high (lean) the blm goes up to
>>bring the int back to 128 . 160 BLM is the max the ecm
>>goes to. so I would definately look into this ASAP.
>>How does the car run. maybe you have a serious vacum
>>leak.  Check the basics.
>>Dennis
>>http://geocites.com/bowtie8
>>--- Don Burns <donburns at macconnect.com> wrote:
>>> TPI EFI Experts,
>>>
>>> I am seeing a block learn value of 160 on my 350TPI.
>>> Integrator seems
>>> reasonable running 128 to 135. The 160 block learn
>>> figure is difficult to
>>> move, at least under no load conditions, and the
>>> only way I have been able
>>> to force it to change (downward) is to disconnect
>>> the MAP sensor. No codes
>>> are being set. O2 and MAP sensors are OK.
>>>
>>> Fuel consumption sucks (12MPG), which is why I am
>>> looking at this to begin
>>> with. Could this be an ECM problem as opposed to a
>>> sensor issue?
>>> Thanks.
>>>
>>> Don Burns
>>> Fort Lauderdale FL   USA
>>> 86GT 350 TPI
>
>
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