Yes, sorry, the basic EE knowledge part of my brain was apparently not working this morning.
Yes, sorry, the basic EE knowledge part of my brain was apparently not working this morning.
Woohoo, wideband shipped today. Should have it Tuesday.
Trying to wrap my head around this fully as a non-EE. For a pre-CAN vehicle PCM such as a LS1B, bringing the two 30-0333 device's CAN wires (with appropriate 60 ohm resistor between them) to the appropriate spots in the OBD-2 connector where the CAN-equipped vehicles have them (pin 6 CAN high, pin 14 CAN low), will allow the MPVI unit to bring in the CAN data. That is, the MPVI will essentially be bringing in two different data streams simultaneously- CAN and VPW. The 3.0 scanner can log the data from both streams and display the results simply by choosing the appropriate PID or channel.Quote:
Originally Posted by dr.mike
Is that an accurate assessment?
Since I use EFI alot all my widebands are serial and have been using serial for 10 years with it, once 3.0 came out I started using serial with HPT. Being in and out of vehicles all the time is there a benefit to this over serial being I still tune pre 08 vehicles still or is it not practical?
I believe this way receives data faster than serial. dr.mike would know for sure though.
The CAN data is faster and better time-correlated with the other PID data than the serial data.
Serial data is, usually, limited to something like 10Hz/100ms. The CAN data is available at 100Hz/10ms. And, can be faster than that.
The serial data takes a different path through windows than the MPVI data. So, there can be ( usually is ) a time skew.
And there we have it.
dr. mike,Quote:
Originally Posted by Dave_62
for the people with pre-CAN vehicles that would like to use this setup, is the above statement accurate?
That is what he said.
Pretty much. yeah. Although, it maty be easier to solder the resistor in to the wires than the connector.
Are any of you having trouble with the PID for the CAN AEM on 3.2? I can't locate the PID anywhere.
I have not tried 3.2 yet.
Have you tried re polling? My WB will be here today so I'll try it this evening
I have not tried 3.2 due to this concern, but are you saying it doesn't come up in the channels list even when your looking/adding it like it did in 3.0 or 3.1?Quote:
Originally Posted by LSxpwrdZ
I can't... Remote/email tuning the car. I just setup a channel config in 3.0 and going to see if it'll transfer over to 3.2.Quote:
Originally Posted by schpenxel
Is the power pigtail coming off the ODB2 connector? Meaning, you would hook sensor to extension to gauge and ODB2 to gauge and ODB2 to power?
No, there are two separate wires for power that don't connect to obd port. It's hard to see on the pictures though. I don't think there's enough power available on the obd plug but I'll probably try it and find out
According to the specifications the 30-0300 draws peak 3amps
I wonder what's available on the obd port? I saw something saying it shares a fuse with the cigarette lighter so maybe it does have enough?