hello there
i'm the owner of an 86 C4 and i would like to purchase an obd1 scanner to see the parameters, and also investigate why the MPG are not always shown (i read somewhere it's a good idea to check the data the ECU is sending to the dash).
i would like to kindly ask you some questions about the usage of this tool.

1. does using this scanner stops the dash to show live information (eg MPG)?
2. are all of them compatible with aldldroid? I found the aldlobd1u one but it seems it's not compatible with aldldroid or other android apps
3. do you recommend a particular one?

Thank you!

 

1320.com

 

As in http://1320electronics.com/ .

I have this and it works with aldldroid for me with my '87. Getting it connected does take a particular method.
1320 will probably provide the best directions for the current version.

 

Note that site is insecure. Not sure why anyone in the electronics business wouldn't spend a few bucks on a certificate.

 

I have the 1320 by and the moates aldl cable, both work well but like all by device it only works as good as the device your trying to connect to. Anyway I have some video on yt that may help. https://youtube.com/playlist?list=PL...dktX0orGjpxz6v

 

thank you guys. what about 84-89 dashes? do you know if using those adapters prevent the information from being displayed while driving? i read somewhere it's going into diagnostics mode when you plug the ALDL connector in

 

There are 3 distinct datastreams that can be monitored and recorded. The following comments are limited to 86-89 cars with the 165 ecm.

1. 5 bytes at 160 baud are sent to the dash for instant/average mpg calculation, o/d indicator or cags indicator and shift light (year dependent).
2. 25 bytes at 160 baud in ALDL mode (10 k resistor across A-B).
3. 63 bytes (payload) at 8192 baud in Mode 1 which can be invoked from ALDL mode (2.) with appropriate hardware/software.

When scanning (via numbers 2 or 3 as described above), the 5 byte 160 baud datastream that would normally be sent to the dash is no longer available, so the dependent display values on the dash will not work. Not much point in scanning the 5 byte 160 baud stream, but it can be done.

1986 cars (w-1986 $32 masked bins) in particular are difficult to get into Mode 1. Some tools are better than others, but no guarantee it will ever work. I have had limited success scanning 86 bins at 8192 baud only with DataCat. Other methods that I have tried have typically failed. Some users have reported that Diacom would also work for 1986 cars/1986 bins at 8192 baud.

The 1986 community has not been very vocal on this issue. My own car is a 1988, so I don't have a 1986 car available for testing, but I can test 1986 bins in my 88 car.

My suggestion for 1986 users is to try DataCat first (with a laptop). There are a few other work-arounds such as running a newer 87-88 or 89 bin in a 1986 car or running a specially modified 1986 bin. I have developed a few modified 86 bins specifically for this purpose, but I have received little to no feedback from 1986 owners to confirm that these will work reliably in 1986 cars.

You can find more detail on this topic if you search for it. Most of the meaningful content is from me if you want to narrow your search criteria.

 

Does anyone know if 1320 Electronics is still in business. I can't make contact either by email or phone. I'm looking for the 94 16 pin ODBI connector.

 

Thanks for the replies. I found a cable that attached to a laptop with windows 10. It appears TunerPro is the only program that works with Windows 10. Does anyone have file for a 94 Corvette