The 4A-FE is different from the 4A-GE with regard to efficiency and electric power. Although equally have the identical displacement and so are DOHC, they were being optimized for different employs. The 1st obvious variance are classified as the valves, the engine's consumption and exhaust valves have been placed 22.three° aside (in comparison with fifty° while in the G-Engines). The 2nd is that it used Toyota's Higher-Mecha Twin Cam technique,[eighteen] where the two camshafts are geared along with the intake camshaft getting pushed off from the exhaust camshaft by way of scissor gears (both camshafts to the G-Engine are rotated through the timing belt in its place).[twenty] A lot of the significantly less straight obvious discrepancies have been improperly formed ports in the sooner variations, a gradual burning combustion chamber with closely shrouded valves, a lot less aggressive camshaft profiles, a Forged crankshaft (rather then a solid crankshaft within the 4A-GE), ports of a small cross sectional spot, a very restrictive intake manifold with long runners joined to a small displacement plenum and various improvements.
Posted November 26, 2024 I found an early 4AGE wiring diagram within our documents. The ignitor is set nearly run the ignition fully standalone within the ecu in the course of startup, it can nevertheless spark at the ideal time While using the ecu totally unplugged. The "crank" sensor is connected straight to the ignitor and also the ignitor then generates a "phony" crank signal that goes on the ecu.
Update (Feb fourteen, 2008): I modified the first connector all over a bit to help keep this with what I am basically presently using. Once i shortened the harnesses inside the trunk a year or so ago, I moved the 4 ELS signals to the 2nd connector to scale back the amount of contacts On this most important connector.
Quick Watch Toyota toyota supra 1jzgte non vvti engine 1jzgtte twin turbo sr20det s13 transmission
davew7 wrote:Killer work to the engine and it looks good! Based on how long the click here engine is going to be location [Decades?
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Unplug inventory harness from all engine-sensors and factors like injectors and distributor. Set up dummy resistor-masses on ECU's injector wires to simulate injectors.
Including to cart… The product has actually been added Description Description New up-to-date design and style has much better clearance for use within an AW11 MR2, now uses cylinder heads dowels for alignment and a lot more accurate port matching!!
It was turning into also challenging to detach/reattach the connector. I've also added the 2nd connector diagram together with the inventory 16V connector diagrams.