Sender Locations

[Dubby458]

ej20 stripped down... hope it helps people with sender locations. Some things may be incorrect.

Intake manifold is off on this photo so you can see sender locations easier.. Thanks 2 BrownMSpurt

number 2: is the water temp sender location

number 1: Oil pressure/oil temp

3. Crank angle sensor. This works with #4 to tell the ECU if the crank is in the right place, meaning your pistons and rods won't smash into the valves and cause your motor death. This is an important sensor and your car won't start or run if it fails.

4. Cam angle sensor. Just at the base of the 4 you will see a grey plug. This is the cam angle sensor that tells the ECU if your cams are in time. It works in conjunction with #3 Crank Angle Sensor.

5. Cam wheels. Timing belt goes around them & the tensioners/idlers at #6. These MUST be kept in the right postition as the ends of the cams act off these wheels, and if the cam timing isn't right it'll push pistons into your valves, breaking valves and causing doves to cry.

6. Idler and tensioner wheels. Work with cam wheels (#5) to keep your motor a-runnin'.

7. Oil breather line that goes from the rocker cover around to the intake. You replace these lines when fitting a catch can.

8. Thermostat. It sits behind a cover which also serves as the mounting point for the bottom radiator hose (which feeds back into the radiator). Always use genuine thermostats.

9. Knock sensor. You can't see it but it bolts to the top of the block under the intercooler. A small round black sensor that tells your ECU if there is knocking or detonation (which will kill your pistons and big-end bearings). The ECU has a pre-determined amount of knock it can detect before it puts you in a "safe" limp-home mode.