Opinions on most important things to monitor with OBD2 sensor.
05-14-2020, 02:42 AM
#1
Opinions on most important things to monitor with OBD2 sensor.
What do you guys constantly monitor with your OBD2 sensor or device? I found a pretty in-depth list by user/dynamho by searching but his was specific to his speed6. Next day off I have im going to mess with the pages and set up it up along with alarms. Im using the ultragauge with LCD. Mostly I bought the device to monitor fuel, catalytic converter temps, and engine temps with a lower alarm probably 170-172f.
05-14-2020, 08:34 AM
#2
By default, I'd monitor engine temp and fuel economy. Nothing else requires your immediate reaction. You can set your coolant temperature alarm at 220F. Regular operating temperature is 180F, so 170 isn't going to work 
You can set up other pages for cat temp, fuel trims, calculated load and airflow to use as diagnostics in case you have a problem in the future. None of those values are stable while you're driving, so there's no point watching them dance around all the time -- but good to have when troubleshooting.
You can set up other pages for cat temp, fuel trims, calculated load and airflow to use as diagnostics in case you have a problem in the future. None of those values are stable while you're driving, so there's no point watching them dance around all the time -- but good to have when troubleshooting.
05-14-2020, 08:57 AM
#3
By default, I'd monitor engine temp and fuel economy. Nothing else requires your immediate reaction. You can set your coolant temperature alarm at 220F. Regular operating temperature is 180F, so 170 isn't going to work
You can set up other pages for cat temp, fuel trims, calculated load and airflow to use as diagnostics in case you have a problem in the future. None of those values are stable while you're driving, so there's no point watching them dance around all the time -- but good to have when troubleshooting.
You can set up other pages for cat temp, fuel trims, calculated load and airflow to use as diagnostics in case you have a problem in the future. None of those values are stable while you're driving, so there's no point watching them dance around all the time -- but good to have when troubleshooting.
At what point should I set cat alarms and start worrying about removing/replacing it? Im still on the fence about BHR midpipe due to gas smell and working in healthcare. My biggest concern is carrying the smell with me to work.
05-14-2020, 11:01 AM
#4
Hmm. I'd start at 1000C for cat temp threshold. It bounces around depending on what you're doing, but *shouldn't* go over 1000 often? From what I've seen the higher the engine load, the lower the cat temp, so if you sit in traffic for a while it might climb over 1000. It's not so hard and fast rule like coolant temp, maybe someone else has more experience with failing cats.
05-14-2020, 04:48 PM
#6
Registered
Hmm. I'd start at 1000C for cat temp threshold. It bounces around depending on what you're doing, but *shouldn't* go over 1000 often? From what I've seen the higher the engine load, the lower the cat temp, so if you sit in traffic for a while it might climb over 1000. It's not so hard and fast rule like coolant temp, maybe someone else has more experience with failing cats.
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