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OBDII conversion - troubleshooting time

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Old 02-24-2008, 11:10 PM
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Originally Posted by samueljackson
did you guys adjust the shift points? did you drive it at all?
The car as it sits now probably isn't drivable since the 97 SSEi uses the 65E and Brad'* still running a 60E, so the transmission tables don't match up. I wish I still had my stock 96 pcm sitting around since that had both the S2 L67 engine management tables and the 4T60E transmission tables and would've made a decent starting point.
Old 02-24-2008, 11:16 PM
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Could we contact INTENSE or ZZP and see what they do with the 96 Bonnevilles? Maybe they have a stock table lying around.
Old 02-25-2008, 06:25 AM
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Nobody does anything with the 1996 PCMs from what I gathered. Ideally, those are the tables that are needed for this application, then we just work our way through the tables, tweaking the values.

Even if the trans tables did exist in the PCM that is in there right now, I still couldn't...and wouldn't...drive it. Making it idle smoothly is one matter, the driving tables are another animal entirely. For proper tune, I WILL have to get a wideband O2. Plus, my front suspension is still a bit on the "eh" side...not to mention the utter need for new tires. Oh, and it isn't registered anymore.

After work today I need to fix a few things....that TPS is one of them. I also need to change out all the fluids, and start buttoning things up. Assuming my tuner gets here Wednesday or Thursday, the car should be out of the garage next week.

Then I can start my garage upgrades :P
Old 02-25-2008, 06:31 AM
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I live about 15 minutes or so from PRJ Performance. I'll call the guy tomorrow and ask him, if you'd like.
Old 02-25-2008, 08:52 AM
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Originally Posted by sandrock
Nobody does anything with the 1996 PCMs from what I gathered. Ideally, those are the tables that are needed for this application, then we just work our way through the tables, tweaking the values.
I was thinking about this last night. If the trans tables from that VIN K bin file that worked were added to the the engine management tables from the SSEi bin file do you think it would mimic a 96 setup?
Old 02-25-2008, 09:03 AM
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I think it should. I'd have to verify if the pinouts at the transmission are the same first. All that would be needed to change would be the gear ratio and *maybe* the reluctor tooth count.
Old 02-25-2008, 05:41 PM
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Video is now up for viewing! Keep in mind this is running S2 L67 tables w/ exception of fuel injection tables...those are close to what I have now.



MAF tables are way off though...gotta work on those
Old 02-25-2008, 05:57 PM
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enjoy? most definitely!

that just has to be such an adrenaline rush for you when you hear it run. hope you can get an, in motion vid soon. keep us posted, and good luck sir.
Old 02-25-2008, 06:29 PM
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only one error light on the dash?
impressive!
Old 02-25-2008, 08:28 PM
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Still no check engine lights, I have to say I'm kind of surprised by that. Is it running a tad smoother than it was last night or is that just my imagination?

I was curious as to how far off the MAF table might be so I checked the L67 MAF table against the L36 which should be closer to what you need. It averages about 1g/sec higher flow across the MAF frequency I was seeing...which when the MAF is saying you're only flowing 6-8g/sec is a lot of extra fuel being commanded.


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