On the turbo systems the air temp sensor is inside the pipe nipple that the idle air inlet hose attaches to (just outside the TB) and the wires come through the side of idle air hose. Don't know about the SC systems.
When map>115 TPS is no longer reported because that datalog time slot is used for reporting WG% instead. Text logs show the TPS data as unknown (except for the state of the WOT switch) while DLL graphs show either 50% or 100% depending on the state of the WOT switch. Since intake temp jumps to 100 almost instantly I suspect a shorted or broken sensor wire. ----- Original Message ----- From: "Matt Bennett" <[email protected]> To: <[email protected]> Sent: Sunday, March 22, 2009 2:39 PM Subject: Link Fuel Cut/Log analysis help requested > After lots of work, I've got my car back on the road. I've got a problem > that comes and goes. I've got a datalog attached, you can also find it at > <http://www.hazmat.com/~mjb/projects/miata/DataLogs/MarchMystery.txt>. At > sample 4630, the TPS goes to 100, but later all my WOT appear to peak at > 50, but in particular the problem is exemplified at sample 6651- I've got > it WOT, but my injector Width and % go to zero, and as far as I can tell, > stays at 0 as long as the MAP is in the boost range. I don't see anything > else going on that would make the TPS go to 50- could it be a loose TPS > connection? > > Of course, these things don't reproduce on schedule- I just took a ride > around the local freeway loop, couldn't reproduce the fuel cut situation- > I could go in and out of boost without a problem. > > Just took another look- saw the air temperature goes to 100 at 4635 (it > looks reasonable before that) I guess that could be the reason why > injector goes to zero when in boost- but after that point, why does the > TPS only go to half of it's normal value? I see at some other points > where the TPS goes back and forth between 100 and 50 (like between 3555 > and 3648). Is the throttle switch signal generated from the TPS? > > Question for the FM guys- is the air temperature sensor (A Temp) the > sensor that is on the vertical tube from the intercooler? > > Matt Bennett > '96 with prototype Ubercharger -------------------------------------------------------------------------------- > _______________________________________________ > Miatapower mailing list > [email protected] > http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower > _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
