Car has driveability problem

[Daniel Joseph Kunnath II]

	First off, thanks to all of you for your suggestions.  Every
observation gives me some place from which to begin hunting down the
cause(s).

	I thought about using the 89 Corvette 6-spd cal before, but I
thought there may be too many minute differences that may end up giving me
more problems to chase.  But, when other suggestions of doing this came up
here, especially from Mr. Fenske, I think I may try this out and see what
happens.  After all, if it is worse, I can just use my old calpak.

	A few more questions surface, though.  Will the changes in engine
components (aluminum heads, different cam, for example) change the
timing values in the ROM too drastically as compared to my stock Camaro
iron head equipped ROM?  Any more things I should worry about there?

	The other question comes from attempting to burn a new ROM.  Is
there a special type of burner that I can get to burn these new values,
and where can I get the blank calpaks?

	Thanks,

	DK
	

On Thu, 12 Aug 1999, Peter Fenske wrote:

> 
> 
> 
> Hi Dan
> 
> (    I have an 86 Camaro w/ 89 Camaro 5.7LTPI (Basch MAF type).  The
> )prom is set up for an A4, but I now am running a 96 T-56 six speed (manual.
> 
> Dan, You realize you can simply burn a 89 6spd corvette cal into
> your calpak. This would prob save you a ton of probs.
> 
> With using a 89 tpi, I believe you lost the cold start injector
> witch the 86 cal requires for good start up..You should go
> to a 89 cal..
> 
> With the Vss is it connected. I would believe a T56 might
> not use a 4 pole sensor. Prob a 30 tooth type setup.
> If not the VSS code can be taken outa the code bit enable
> table.. Lots of tuners do this for some reason or another.
> You may have to use a drac and feed the ecm 4 pole input
> through a cap to simulate the A.C signal.
> 
> (    The engine, especially when cold, will tend to choke, stagger,
> :stall at low RPM, and I have had a hard time getting it to idle )properly
> >when first starting in the morning.
> 
> 
> Maf low code. Check for 0.5 v at idle at Maf output. There is
> a error table which sets this in the code. Could be a 89 Maf
> confusing a 86 cal table. I have personnaly never seen this.
> 
> 
>      The only codes I have gotten (both intermittent) are code 33 (MAF
> low) and code 24 (VSS).  I can't pinpoint anything, so I was wondering if
> anyone has insight into this....perhaps suggestions on improving the setup
> with a proper BIN?
> 
> Anyways try a 89 cal, Dan
> 
> gl:peter
> 
> 
>