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P1810 Code Hard to Find the Problem

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Old 05-16-2024, 03:19 PM
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Originally Posted by RPM WS6
I received your PM but I can't really help you with the problem as I have no experience with P1810 nor it being associated with the problems you're experiencing. It's also possible that you have more than one issue happening here, as someone suggested above. With that said, I can offer some insight here:



Yes, 1998 models will show commanded/current gear in real time on a scanner. The data is there, I can see it with my ancient AutoTap software on my equally ancient IBM laptop. I've had this software for well over 20 years, it was prime equipment back then and still works just fine today. So the data is there, but you probably need something more comprehensive than what you currently have to retrieve it.
Thank you RPM fir the info. My Innova 5610 didnt offer that live parameters on the Tranny, or maybe I didn't know how to access it. I will do more digging on this. 👍
Old 05-16-2024, 05:45 PM
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There are NO internal fluid pressure sensors inside a 4L60/65/70. You can only read shifter position (through the TFP switch), temperature and vehicle speed. In 2005+ you can also read input shaft RPM.
While the scanner will show the commanded gear, the actual gear cannot be read, it can only be deduced from RPM and Speed.
Some scanners "claim" to show internal pressure, but it's actually just a deduction based on the commanded EPC current and how a brand new stock trans would respond to that. You have to install an external pressure gauge to get the actual pressure.
Old 05-16-2024, 10:53 PM
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Thank you mrvedit, I was about to buy a advanced scanner off ebay.
Old 05-16-2024, 11:09 PM
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All 3 of my scanners show shift and TCC solenoid command, input/output speed, fluid temp, converter clutch slip, TFP Switch, EPC command and will let me command solenoids on/off with the scanner among other things.
Old 05-16-2024, 11:21 PM
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What year and model bbond?

And, any of you guys think istalling a Fitzall is a bad idea?
Old 05-17-2024, 12:34 PM
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Any year and model vehicle that has an electronically controlled transmission.
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Old 05-20-2024, 07:27 PM
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I contacted Innova. They said I can only see Transmission temperature.

That's a $400 scanner.
Old 05-20-2024, 07:56 PM
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Anyone knows how to access parameters in 98 PCM?
Old 05-20-2024, 08:04 PM
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Originally Posted by OddJack
Anyone knows how to access parameters in 98 PCM?
This is not '98 specific. I can see commanded gear using my AutoTap software in any year F-body PCM (it was visible in my '98, '99, '00 and '02 cars).

AutoTap is ancient stuff. I'm sure there is something newer that would also access this data.
Old 05-20-2024, 08:08 PM
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RPM, I have done some reading and someone pointed to shifting parameters in PCM that may cause the symptoms I am having. Right at around 70 mph. Can AutoTap change values or only reads the data?
Old 05-20-2024, 08:12 PM
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Is this the one you're using?

https://autotap.software.informer.com/3.1/

And cable

Amazon Amazon
Old 05-20-2024, 08:29 PM
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My AutoTap version is from over 20 years ago, so I can't speak for certain on the newer versions (honestly, I didn't even know it was still being updated and offered), but with mine I only have the ability to view/log data (read only - no write/re-tune).

In the old days, I used to use this program to read data and then use LS1 Edit to tune. But that was the only option at the time. These days, if you want to also be able to make changes then I'd look for a complete tuning suite (with read/scan capabilities as well).
Old 05-20-2024, 08:35 PM
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I recently got a cheap OBD Bluetooth dongle and I’ve been using a free app but the app I’ve been using doesn’t show transmission stuff either. I have an iPhone and it looks like there aren’t as many apps as there are for an android. But if you have an Android I think the Torque app might show transmission stuff.
Android “dongle” Android “dongle”
Old 05-20-2024, 08:38 PM
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Originally Posted by Y2K_Frenzy
I recently got a cheap OBD Bluetooth dongle and I’ve been using a free app but the app I’ve been using doesn’t show transmission stuff either. I have an iPhone and it looks like there aren’t as many apps as there are for an android. But if you have an Android I think the Torque app might show transmission stuff.
Android “dongle”
Torque app Android only. There’s gotta be an IOS based app that can look at transmission parameters too.
iPhone dongle iPhone dongle


Old 06-08-2024, 08:38 AM
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Took it to Tmission shop, they changed the switch a second time. Code persists. they called in a Mobile High Tech company for diagnostics. They said the PCM and wiring are good. They think there is pressure pump inside the tranny is bad, or something like that. have to go back and read what they wrote. The shop says they would need to drop the tranny. with thousands in costs. I think that's their way of saying: sorry, have a good day.

Meanwhile I found this:

https://forum.hptuners.com/showthrea...ybe-I-can-help

Whats the best and easiest way to make these changes?
Old 06-10-2024, 10:50 AM
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Does Autotap program let you edit the above parameters, anyone?

Or is it only HPTuners?
Old 06-10-2024, 01:22 PM
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AutoTap (at least the very old version that *I* have) is read-only (no read/write) - so no editing capabilities.



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