Fuel range GU 2010

[Maxhead]

I doubt it. They don't have enough volts running through them to do that.

It would be the higher current which would make the wire red hot.
From a quick bit of research it looks like all hot wire MAF sensors have this "burn-off" function whey they heat( up to1000c) to burn off any crap on the wire. I suppose if they didn't have this function there would be a lot of cars playing up..LOL

[Hodge]

Good point mate. Low volts, high current. I should bloody know, play with electricity daily at work. LOL
Maybe these MAFs do have it too then, who bloody knows.

[Maxhead]

Good point mate. Low volts, high current. I should bloody know, play with electricity daily at work. LOL
Maybe these MAFs do have it too then, who bloody knows.

Yeah, maybe someone in the know can clarify...but still can't beat the occasional contact cleaner spray...LOL

Apparently this is controlled by the MAF burn-off relay which can be heard after you switch the car off....hmm now I know what those clicks are after switch off

[Hodge]

Yeah, maybe someone in the know can clarify...but still can't beat the occasional contact cleaner spray...LOL

Apparently this is controlled by the MAF burn-off relay which can be heard after you switch the car off....hmm now I know what those clicks are after switch off

You are onto something there mate. Everytime I car shuts off, there is a small, almost like a suction noise, followed by a click. I always assumed it was to do with the alarm or the immobilizer or something kicking in.

[critta11]

You are onto something there mate. Everytime I car shuts off, there is a small, almost like a suction noise, followed by a click. I always assumed it was to do with the alarm or the immobilizer or something kicking in.

It may be that but the butterfly valve that cuts off the intake when the engine it turned off makes a suction/click noise and you can see it happen at the back of the block under the intercooler. Does make sense that the maff would burn off though.

[critta11]

I do wonder why my maf sensor just crapped itself one day, maybe had too much gunk on it and couldn't cope or maybe just burnt itself out?

[the evil twin]

Yeah, maybe someone in the know can clarify...but still can't beat the occasional contact cleaner spray...LOL

Apparently this is controlled by the MAF burn-off relay which can be heard after you switch the car off....hmm now I know what those clicks are after switch off

I've never heard of nor can I find any reference to a "MAF burn off Relay" in the factory manuals.

Any idea on where it is located or a reference to it? Not saying it doesn't exist just saying I've never come across one in my delving into the intricacies of CRD's

That suction noise is more likely what Critta is talking about I think

AFAIK there a are two sensors in the MAF package. A mass sensor and an air temp sensor. A failure of either will cause issues

[Maxhead]

I've never heard of nor can I find any reference to a "MAF burn off Relay" in the factory manuals.

Any idea on where it is located or a reference to it? Not saying it doesn't exist just saying I've never come across one in my delving into the intricacies of CRD's

That suction noise is more likely what Critta is talking about I think

AFAIK there a are two sensors in the MAF package. A mass sensor and an air temp sensor. A failure of either will cause issues

I'm just using a general term which I found while researching MAF sensor burn off function which is a part of most hot wire MAFS(heaps of info on the net). I'm not sure if the Patrol has this function or not but it would make sense to have it, but then again we're talking Nissan here...LOL

I'm sure I read it on the forum somewhere that's why I mentioned it and I definitely can hear a couple of relay clicks when I switch mine off...Might pull the MAF out and test it to see if it glows red after switch off.

[critta11]

I'm just using a general term which I found while researching MAF sensor burn off function which is a part of most hot wire MAFS(heaps of info on the net). I'm not sure if the Patrol has this function or not but it would make sense to have it, but then again we're talking Nissan here...LOL

I'm sure I read it on the forum somewhere that's why I mentioned it and I definitely can hear a couple of relay clicks when I switch mine off...Might pull the MAF out and test it to see if it glows red after switch off.

Not sure it would be a good Idea to have the car running with the maf señor out. Also you can test the maf with a multimeter. Youl have to double check the numbers but from left to right the wires should read
1.5-2 v
0v
6v
Whatever your battery voltage is. 12-13v
Like I said that's what I can remember so I may be a bit off but I'm pretty sure it's the first wire that will tell you if the sensor is playing up. Mine was 1v

[Maxhead]

Not sure it would be a good Idea to have the car running with the maf señor out. Also you can test the maf with a multimeter. Youl have to double check the numbers but from left to right the wires should read
1.5-2 v
0v
6v
Whatever your battery voltage is. 12-13v
Like I said that's what I can remember so I may be a bit off but I'm pretty sure it's the first wire that will tell you if the sensor is playing up. Mine was 1v

Ammm, there is nothing wrong with my MAF ,,LOL