Old Mar 4, 2010 | 01:12 AM
  #29 (permalink)  
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rcompart
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Joined: Apr 2008
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From: Chicago, IL
Default Re: SL55 Fuel Pump Fact, Fiction or Matter of Opinion?

Originally Posted by Thumper SRT6
Unfortunately, it doesn't appear our cars support this PID (IPW). At least not according to the datalogger and software I use. It might be in there and I need to update my datalogger firmware and software.


Maybe the Dashdaq can see it? It would be nice if it was in there.
Our car uses a sort of hybrid OBD-II called DRB-3 in which they only output the PIDs necessary for emissions testing in a format that we can use OBD-II compliant devices with (which is what the DashDaq and most other diagnostic systmes use) and then DRB-3 for actual control and programming of the specific vehicle functions such as ABS, PCM, ECU, TCU etc. This is where the Star system comes in handy as it "speaks" the native language of the car. As far as getting more PIDs to show up, I have been talking with the guys at DrewTech about a posible solution to our protocal problem. Hopefully we can get everything figured out in a timely manner. The ticket isn't to figure it out for the Crossfire but to figure it out for the Mercedes using the ME2.8 ECUs as that is a considerably larger audience than just us Crossfire guys but it will work for our cars because we share pretty much all the electronics with our MB bretheren. Now a different way to look at it would be to use another hardware device that will read the duty cycle of the injectors that outputs a serial data stream for the DashDaq to read and log. I'm looking at a few prossible solutions but it's hard to justify another $150 peice of hardware just so you know how much fuel you're flowing(provided you're monitoring fuel pressure as well) I'll keep everyone in the loop.
 
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