Fuel pressure regulator

Testing

Throttle position sensor (TPS)

15 Disconnect the electrical connector from the throttle position sensor (TPS).

16 Using an ohmmneter, measure the resistance between the indicated terminal pairs. The resistances should be as follows

(see illustration):

Throttle valve	Between	Resistance
position	terminals	value
Fully closed	VTA and E2	0.2 to 5.7 kOhms
Fully open	VTS and E2	2.0 to 10.2 kOhms
Any position	VC and E2	2.5 to 5.9 kOhms

17 If the resistance values are not as specified, renew the sensor.

Renewal

18 Undo the screws and remove the sensor

(see illustrations).

19 Refitting is a reversal of removal.

Renewal - Non-VVT-i engines

20 Relieve the fuel pressure (see Section 2).

21 Detach the vacuum sensing hose from the regulator.

22 On 1.3 litre engines, remove the fuel return hose banjo bolt and washers, then disconnect the return hose from the regulator. On 1.6 litre engines, slide the clamp down the hose and remove the fuel return hose from the regulator.

23 Remove the pressure regulator mounting bolts (see illustration) and detach the pressure regulator from the fuel rail.

12.16 Throttle body connector terminal	12.18a Throttle position sensor screws	12.18b Throttle position sensor screws
identification (see text)	(arrowed) - Non-VVT-i engines	(arrowed) - VVT-i engines

Fuel and exhaust systems 4A•9

12.23 Detach the fuel return hose and remove the two mounting bolts (arrowed)

Дата добавления: 2014-12-23