High Block Learn

[Zacek DenniS]

Don 
A 160 BLM is a reading for the ecm thats its running
lean . 160 is the max value it can goto.  I would
check your basics. Fuel supply,vacum leak,etc. What
chips are you running? stock or modified . The int and
blm work together.  the BLM will adjust to keep the
int close to 128. But in good order the both should be
close to 128 or just under say 123 or so.  
Dennis
--- 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
> NIFE
> 
> 
>
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=====
Dennis Zacek
http://geocities.com/bowtie8

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