Thirsty rav4 2006 cruiser L

[dansktm]

Hi all, have had our rav for approx 3 years, and that past 6 months have had trouble getting more than 300 kms to a tank. It's been put on a few computers and all to no avail. O2 sensors seem to be working but no one else can diagnose a problem. We try to baby it as much as possible but nothing works. Have tried all high octane fuels, changing plugs,oil filters and so on...Friends have suggested doing the injectors as there might be a small leak but wouldn't the engine light appear? Sorry starting to whine now but it's doing my head in...

[Retro Raf]

Hi all, have had our rav for approx 3 years, and that past 6 months have had trouble getting more than 300 kms to a tank. It's been put on a few computers and all to no avail. O2 sensors seem to be working but no one else can diagnose a problem. We try to baby it as much as possible but nothing works. Have tried all high octane fuels, changing plugs,oil filters and so on...Friends have suggested doing the injectors as there might be a small leak but wouldn't the engine light appear? Sorry starting to whine now but it's doing my head in...

Hi all, have had our rav for approx 3 years, and that past 6 months have had trouble getting more than 300 kms to a tank. It's been put on a few computers and all to no avail. O2 sensors seem to be working but no one else can diagnose a problem. We try to baby it as much as possible but nothing works. Have tried all high octane fuels, changing plugs,oil filters and so on...Friends have suggested doing the injectors as there might be a small leak but wouldn't the engine light appear? Sorry starting to whine now but it's doing my head in...

Take it to a fuel injection specialists. The fact the O2 sensor is working is good but there is far more to the story. You can tell a lot by looking at a trace of the O2 sensor output. If the fuel is not leaking out it must be burning it for some reason and the O2 output will say so. One car I diagnosed with a similar fault had a crack in the exhaust manifold. Air was getting sucked in and the O2 sensor was reading the mixture as lean and compensating by injecting more fuel. This was an easy fix to a very obscure problem.

This is not something a Toyota dealer can do.

[dansktm]

Thanks heaps Steve, will book it in and let's see how it goes.

[Buff Hamster]

2 options to possibly fix this.

1. Use fuel injector cleaner. I use Fuel Doctor once in a while to give my fuel system a clean.

2. Floor your car a number of times to clear any blockages in your injectors and it will reset the ecu to a different profile.