Thread: High Long Term Fuel Trims - why?

Sorry to steal the thread, and butt in Steve!

I got drilled and slotted rotors from Island 4x4 - Specialists in Land Rover and Range Rover Parts and accessories for all models. UK and worldwide mail order. - Island 4x4 - Specialists in Land Rover and Range Rover Parts and accessories for all models. UK and worldwide mail order. and pads as well. Their prices are very good. Freight is a tad exxy, but all up was much cheaper than buying in oz.

Cheers
Keithy

Hi

I looked at the UK suppliers but then discovered that RDA Rotors & Drums Australia + EBC Brakes, The Big Brakes Company | Home have them in OZ and their prices are pretty good.

So I decided to buy them locally, I like to support local distributors when I can , but am not prepared to pay silly prices !

Steve

I got my pads, rotors and calipers from FWD motors in Yeerongpilly Brisbane. Good crew of guys and good prices.

Stevefarmer, your long term fueltrims will definitely display the current situation even without resetting the adaptive values, it just means that it could take days instead of hours.

BTW, my fuel pressure at the rail is 50psi after checking three times with a handheld cheap tyre pressure gauge. I wouldn't bet on super high accuracy with this device, but that seems like good pressure to me for fuel at the rail so now to check the inlet manifold gaskets.

Originally Posted by glenhendry

I got my pads, rotors and calipers from FWD motors in Yeerongpilly Brisbane. Good crew of guys and good prices.

Stevefarmer, your long term fueltrims will definitely display the current situation even without resetting the adaptive values, it just means that it could take days instead of hours.

BTW,my fuel pressure at the rail is 50psi after checking three times with a handheld cheap tyre pressure gauge. I would bet on super accuracy,but that seems like ggood pressure so now to check the inlet manifold gaskets.

Glen

Thanks for that, I will check them again in the next few days

Steve

Hmm Ok,, so the LTFT are a guide as the O2 sensors fix any faults??? yes?
I'm not sure WHICH O2 sensor ( on the torque app) readout to use,, eqivalent?
but even then any abnormal readings may just be the sensor adjusting for bad LTFTs ???
but they should read 1,, on a good day
I am getting faults on both O2's but were only replaced 2 months ago.

fauly codes to come.

and how are all these readings affected by my running LPG??

Your LPG ecu will steal the O2 sensor feeds and then send a bogus O2 signal to the petrol ECU in an attempt to stop the petrol trims movings while running LPG. Note this does NOT work as my Thor ecu is not fooled by the LPG fake signal.

Hmm ok Glenn,,,,,
so ---
the LTFT display is only ever for PULP??

is there a test for the O2 sensors?

On the Torque app "Bank1 -sensor 1" is the sensor for cyls 1,3,5 & 7 Bank 2 Sensor 1 cyls. 2,4,6,8 so look at O2 sensor "1" for banks 1&2. There is no sensor "2" because the Aust. market did not require post-cat sensors at that time.

There is a test for the sensors providing the ECU supports it...

If you go to the "Help" button and search on "Test" there's a description of how to go about it for the O2 sensors. I'm indisposed at the moment so can't get to the vehicle to "connect and report"