TPS adjustments, unclear on voltage readings.

cre · 06-20-2011, 08:42 PM

The Crassida's intake is different than the GTE's... it just looks similar. The Supra and the Crown N/A's (ALL YEARS of 7M and also the 2JZ series) ran a very different setup than the Cressida's thanks to the ACIS system and tuning differences based on it.

Those flow numbers for the injectors aren't quite accurate. That's pretty much just a step above the middle of the VERY broad range that Toyota specifies for its injectors and rather hopeful for 20+yo injectors. The 89+ injectors are supposed to flow 276 to 340cc/min, pre89 aren't much less. Toyota also says a variance of as much as 36cc/min between injectors is fine...

. It's irrelevant to me as I won't install used injectors unless they've been cleaned and blue printed... half of the ones you send to the shop are trash at this age. I misread though and thought you meant you were running the newer ECU with the grey plugs, not that it was used to build a Fields harness.

The VSS is labeled SPD in Toyota's publications, you'll probably find more info looking for that. I think most of the Toyota speedometer heads from that vintage provide the same VSS signal.

The oil signal may only be used in the GTE ECU, I can't recall.

06-20-2011, 08:42 PM	#11
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The Crassida's intake is different than the GTE's... it just looks similar. The Supra and the Crown N/A's (ALL YEARS of 7M and also the 2JZ series) ran a very different setup than the Cressida's thanks to the ACIS system and tuning differences based on it. Those flow numbers for the injectors aren't quite accurate. That's pretty much just a step above the middle of the VERY broad range that Toyota specifies for its injectors and rather hopeful for 20+yo injectors. The 89+ injectors are supposed to flow 276 to 340cc/min, pre89 aren't much less. Toyota also says a variance of as much as 36cc/min between injectors is fine... . It's irrelevant to me as I won't install used injectors unless they've been cleaned and blue printed... half of the ones you send to the shop are trash at this age. I misread though and thought you meant you were running the newer ECU with the grey plugs, not that it was used to build a Fields harness. The VSS is labeled SPD in Toyota's publications, you'll probably find more info looking for that. I think most of the Toyota speedometer heads from that vintage provide the same VSS signal. The oil signal may only be used in the GTE ECU, I can't recall. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->