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ShaginWagon
30-12-2004, 08:13 PM
After some dicking about with air filters and tune I was still stumped how my car managed to use 13.9l/100km when the 5.4l DOHC XR8 from work returned 12.9l/100km, and it's heavier and I cane that one!

I read that changing the oxygen sensor was the fix somewhere on this forum. So I thought what the hey I'll give it a try.

With this change alone I now return 10.8l/100km over the last four refills and thats with the air conditioner on full belt due to the hot days over here!

I strongly advise you try this simple fix.

http://www.aussiemagna.com/forums/showthread.php?t=12339&page=1

I went to Repco and bought the o2 sensor.

It's the single wire one and I didn't need the flange (but got it anyway). $84. Denso.

What you'll need.
22mm Open ended spanner,
12 and 10 mm sockets,
CRC/WD40/RP7 or alike,
Couple of screwdrivers (small flat and jeweler type set),
Mallet or hammer and wood drift,
Crimping tool,

To do was hell easy. Disconnect battery, disconnect o2 sensor from main wiring loom by lifting small tab with screwdriver and pulling apart.
Undo the heat sheild bolts.
Spray WD40 (or alike) onto o2 sensor where it joins the mainifold.
Let sit for an hour.
Take 22mm spanner and belt anticlock-wise to loosen o2 sensor. I had the engine warm to do this but be carefull not to burn yourself
Once out, take the end off the connect by using a small screwdriver inserting it into the connector and lifting the plastic tab. Pull apart.
Now the hard part - undo the connector from the wire (or buy a new connector, but hey it wasn't available anywhere I went).
Cut the new o2 sensor wire to length - connect to the new connector with crimping tool.
Screw back into manifold and tighten.
Attach heat sheild.
Reconnect o2 sensor.

Test drive.

So far it's paying itself off.

Hope this helps someone else :D

Matt
31-12-2004, 12:43 PM
Yesterday i was playing around with my ignition timing.......whilst trying to get more power, i tried many different settings and noticed very little difference in power......however i left the timing slightly advanced and have since done 180km's on just 1/4 tank of petrol. I used to get about 400km's out of a Full tank, so far it looks like my fuel consumption has decreased a fair bit. i'll let u know once i do a full tank.

The standard Ignition Timing is supposed to be on 13BTDC +-2, with the timing check connector capped. (it's always capped)
Mine was on about 8BTDC....i upped it to approx 17, im saying approx as its off the little indiactor thing......

Mind you im running PULP dont know how it would go with normal fuel advanced that far.