Ok...a couple more of the easy things ruled out.
Check to be sure there are no leaks anywhere on the accordion (turbo intake) hose.
Here's some info on vac readings:
http://www.cygnusx1.net/supra/TechTips/vacuum_gauge_readings.aspx
At this point I would get the car warmed up with a...
One more thing to check...the hot start FP up VSV. Look at this pic:
It's the forward VSV shown in the diagram. A quick test: pull the vac line off the FPR and start to see if it still does the up/down/die.
Did you clean the ISC valve housing or just remove and test?
There's a check valve under the ISCV...did you clean it or replace?
The PCV system uses an orifice in the TB vs a valve. Is it clear?
A code 34 is what it is..."speculating" that it's the AFM will result in a wild goose chase. Especially saying a code 34 "points" at the AFM when there is a minuscule to zero chance of that happening. The only way the AFM will "see" more air at that psi as read by a stock sensor or a gauge that...
Considering code 22 is the ECU coolant sensor, yeah the ECU uses that just for "a few" functions ;)
In fact, it's failure is one of the fail-safe functions of the ECU...a coolant temp of 80 deg C is substituted for all ECU calculations. At that temp the CSI acts (time wise) like it would on...
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