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Ok, so the A/F sensors was swapped left & right and the problem moved with the sensor. The one oxy sensor did not look too happy either, so the decision was made to replace both, ouch! Job was completed Friday late, so I have not had too much time to do a full tank, but from what I can see, it...

Ok, just some more feedback. 2 of the injectors was found to be over fuelling. All of them was rebuilt and installed. I was completely blown away by the diffrence it made!! It feels like I have way more power and the engine responce is instant. Unfortunately it is still overfuelling on one...

Ok, at least some good news for now.... All injectors was removed and sent for testing. Of the 6, 2 of them was definitely not closing as fast as they should be and causing the over fuelling. Now to see if rebuilding them will fix them, otherwise would have to wait for new ones.

Right, so I have a 2007 4L Auto Petrol Navara, D/C - Spanish Build. Guess what, same problem with surging in 4LO, but only if the diff-lock is on. I mostly do only sand, so 4HI is fine, but on this particular trip, there was a long steep sandy hill that had huge cross axle holes in it. I...

Well, I took my trailer axle to an engineering shop, where they drilled new holes for me. I can now fit Navara rims or standard rims. The cost was way less than spacers. P.S. Just make sure about the clearance. The Navara rims is way diffrent than standard rims.

No loss in power. Idling a little bit rough, but not so that it would raise alarm bells. A friend now suggested perhaps 1 or 2 injectors that could be stuck open, or leaking. From there that the ECU can not compensate for the over fuel at idle and low loads. Sounds plausable to me? Now, how to...

Thanks guys. Have redone all the earth connections. MAF was cleaned. Going to try and clean the A/F and Oxy sensors the same way as the MAF sensor. Hope it works... How would one go about checking the vacuum lines???

Well, the Auto is way heavier on juice than the Manual, as well as the 4x4 vs the 4x2. Anayway, yes, the ECU was reset and re-learing done.

Hi Guys, I'm new here and from the enemy country, RSA. No sport discussions please, my rugby team is doing bad enough as it is :( Anyway, I have had my D40 gas guzzler now for nearly 3 years. It is a 2007 model, 4L V6, 4x4 and Auto. Yes, it sucks juice not nothing else!!! But I would not swap...