[Gmecm] BLM cell confusion

[Ryan Hess]

Wow! and suddenly there were 7 messages in my inbox! 
I'm using freescan and an ALDL interface.  I would
ASSUME that the injector BPW at idle would have to be
greater than 0.7mS, since injectors all require some
minimum open time - and presumably - the PCM knows
this.  The map is reported to be about 0.29 to 0.31
when in cell 2, at 1500-1750rpm.  BPW is reported to
be "1"...  

Ryan


--- Gary Evans <gary at garyandliz.com> wrote:

> What are you using to scan? Is there no way to see
> bpw on your setup?  
> And you're sure that MAP is not below the minimum
> value for learn?
> 
> 
> On Nov 11, 2005, at 12:21 PM, Ryan Hess wrote:
> 
> > well I just changed the BPW learn for off-idle
> high
> > and low hysteresis values to 1.0 and 0.7mS
> > respectively.  This time, I DID notice the cell 2
> BLM
> > change from the default 122 to 124 (which is a
> step
> > forward).  However, the INT is still hanging
> around
> > 137, proof that it could move more, but isn't. 
> All of
> > the other conditions are being met - at least I
> assume
> > the BPW is above 0.7, perhaps I need to drop it
> some
> > more?  I did make sure to change the CCP enable
> > coolant temp to FF, but maybe it's still coming
> on? So
> > frustrating...
> >
> > Ryan
> >
> >
> > --- Gary Evans <gary at garyandliz.com> wrote:
> >
> >> Closed loop conditions met (Coolant temp up,
> engine
> >> run time met, no
> >> fault codes, o2 sensor ready)
> >> Charcoal canister not purging.
> >> RPM between 400 and 6375
> >> MAP above 22 kPa
> >> BPW above 1.08
> >>
> >> If you are just revving the car in neutral, it is
> >> likely that one of
> >> the conditions is not being met.
> >
> >
> > 	
> > 		
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