- Warm up the engine (in move). When the oil is heated, the tightness of the piston rings increases.
- In the engine compartment in a relay box (next to the expansion tank with brake fluid) disconnect the fuel pump relay. Otherwise, when measuring pressure, the engine will be flooded with fuel, which may damage the catalytic converter.
- On a 16 valve engine, unscrew the ignition cable cover on the valve cover.
- Disconnect the wire connector on the DIS ignition module, see also section «Ignition stop» in chapter «Ignition system».
- Put the car on the handbrake, handle
- shift gears to the neutral position.
- Remove all spark plugs.
- Press the rubber cone of the pressure sensor into the hole for the candle of the 1st cylinder (first in direction of travel) or screw a connector adapter onto the spark plug thread.
- Have your assistant fully depress the gas pedal. So the cylinders are filled to the maximum.
- Turn the engine over with the starter until the maximum pressure is reached (min. 4 s).
- Take the pressure reading and write it down. If you have a pressure recorder with a measurement card, connect to the next cylinder.
Visitor comments