Federal vs Califnia emissions 5SFE - need vacuum routing info Options

[slavie]

Hey guys,

I am not able to find an answer to the following question: what is the vacuum routing schematics on California emissions 96+ 2.2l 5SFE vehicles?

On a Federal car, there are 3 ports under the throttle body - 2 are for coolant in and out, 3rd one is the vacuum line that goes to the power steering pump via a metal hard line behind the intake manifold.

On a California emissions vehicles, that 3rd fittings under the IACV goes to the fuel injector assist port on the cylinder head instead. BUT, where does the PS pump idle up hook up go to??? I cannot find an answer anywhere. Dealer diagrams mention the different part numbers but the schematic drawings are inconclusive (and also include other bits from earlier Camry/Rav4 cars that are not present on Celica), and the factory BGB does not have any drawings on this. Does it go to the intake hose? Is there a vacuum T somewhere?

Any help, or pictures if you have some of your Cali spec 5SFE would be greatly appreciated.

[slavie]

Thanks for the response.

After digging some more, I think I have it figured out:
-Fed emissions: the "middle port" under the throttle body goes to the metal piping behind the intake manifold (via 17341-74340) and feeds the FPR and PS idle-up valves. Intake hose (17881-74690) has 1 hole for PCV.
-Cali emissions: the same middle port under the throttle body goes to the air-assist port b/w cyl 2 & 3 via 17341-74510, AND the AIR INTAKE HOSE is different (17881-74700) has 2 holes, first for PCV on the front same as fed, second hose on the back now goes to the FPR and PS idle-up via 1730874460 and a 90 bend (90412-08005). Below is the link to the parts that specify Cali and Fed intake hoses, and a parts diagram:
https://parts.toyotaofcoolsprings.com/auto-...air-intake-scat


I already have the Cali "Light Green" air assisted injectors (23250-74140, 264cc) and the corresponding cylinder head and even the cali ECU (89661-2G261), and reading about your experience with injector fitment issues is my primary reason for deciding to stick with Cali emissions.

Another interesting fact: unlike 94-95, 96 and up cars had the same distributor with external coil for Fed and Cali cars. Furthermore, the distributor is fixed and timing is handled completely by the ECU. There is a single 2-pin connector to the distro for the Camshaft Position Sensor.