busta9876

i have a buddy wants me to tune his Tune Port he swapped into a mid 80s pickup. The doner was a 1986 TPI 305 car, wich was the 1227165 ecm and the $32 byte ID. I already have a tunercat definition for the $6E for a 89 TPI.
Anyone see any reasons I can't just load the $6E code onto his memcal and run with it? Freescan will support the $6E which solves another problem with using the $32.


thanks

Brendan.

Z69

Just disconnect the 9th injector relay at a minimum.
Sometimes you have to tweak the crank fuel tables.
The 6E appears at first glance to be leaner than the 32. Do a compare on the relavent tables and you'll see what I mean. But plenty of people have just swapped the bin only....
TunerPro is frequently tested on 6E also....

Got any info/links on the LQ4 timing signals. Crank and Cam?

busta9876

No not at the moment, since I sold the 6.0L I have not been up to date on the latest developement of spark control on these engines, I am however aquiring a 5.3L in the next few weeks that I plan to swap into a Mustang with a turbo, so I may investigate it some more.

I heard that Parish over on ls1tech is running the stock coils with megasquirt now, but I have not seen any info on what he did exactly.

thanks for the help.

Brendan.

BirdsOnly

I was wondering what the differences are between the $32b and $6e? I know that the 89 had the 9th injector removed? Is there any other advantage to using the 1989 $6e from a tuning stand point?

Mangus

The most notable difference is:

8192 ALDL comms (10 hz) vs. $32's 160 baud ALDL comms (0.66 hz)

Also note that you'll need to disable VATS in the $6E bin in order to start the truck.

BirdsOnly

Let me see if I get this right the $6e has a sample rate of 10 hz and the $32 has a sample rate of 0.66 hz? Wouldnt that be a big advantage to stay with the $32?

Mangus

10 hz = a sample is spit out once every 100ms (10 samples per second)

0.66 hz = a sample is spit out every 1500ms (one sample every 1.5 seconds)

If you prefer exteremely slow ALDL data rates, then staying with $32 might be better for you. I have no idea why someone would prefer the incredibly slow data rate over the faster data rate, however.

BirdsOnly

I am sorry I am new to the DIY prom stuff. But I thought the TBI and 85 TPI ($1F, $4D, $61) had the low baud rate, and the $6e and $32,$32b had the same higher baud rate. Am I wrong on that? are the pre-89 TPI all the low baud rate?

Thanks for the answers!

Mangus

$32 is 160 baud only. 6E is hybrid (160 baud and 8192). I had previously thought that $32B was 160 only, however others are saying that they can connect at 8192 using Datamaster. I am, however, unsure if Datamaster is doing something special to connect at the higher rate or if it is a genuine feature of $32B. I have not yet tested it myself.

M

busta9876

So the datarate is all determined by the code? They are same part# computer, so just putting 6e on there will allow high baud rate communication???

Mangus

Yup!

Cool. Freescan ships with source code, so you could add the necessary code to grab the 160 baud datastream and a definition to match as well.