Thread: P38 on gas

Originally Posted by willem

99 Bosch 4 litre - have had injected LPG for 4+ years. Landi system. Good, reliable, Fuel economy OK, makes the car ownable from a fuel cost perspective. This is a daily driver that is used all the time - 120 000 kms in 4.5 years. Car now has 267 000 kms

Willem

This is the same setup I have, what type of consumption do you get with the 4.0 ?

Regards
Steve

Just wondering beeutey it is the wr7? As the bosch catalougue recoments the wr8.

Businessconnected, what injection system do you get? Im in the same position as yourself where I'd be able to do the manifold work myself. Currently I dont have o2 sensors and I assume I would need these too?

Regards, Benji.

Originally Posted by benji

Just wondering bee utey it is the wr7? As the bosch catalougue recoments the wr8.

Businessconnected, what injection system do you get? Im in the same position as yourself where I'd be able to do the manifold work myself. Currently I dont have o2 sensors and I assume I would need these too?

Regards, Benji.

I use the WR7 plugs because of excellent results with them. The WR8 plugs are too hot for the kind of hills and towing that happens around here. And the WR7's cope well with lighter duty too. Currently Bosch Australia seem to be out of stock of the WR7's, but you can always use the FR7 variety instead (16mm hex socket) as used in some P38s.

Re injection on pre O2 sensor cars, I've done a couple of vehicles like that. As the engine ECU can't tell exactly how far off the mixtures are I install an O2 sensor purely for reference during tuning. When I do the first follow up tune the mixtures will have wandered enough to affect the running and the O2 sensor can be read to readjust the fuel map. It's not optimum but it works.

Thanks so much.

There's 3 wr7 in Bendigo and I can get the others out of Adelaide.