[SOLVED] Nissan Micra running problems (air flow meter) (2023 Update)

the throttle body assembly is the problem, but it may be just the connector to it!!

With it running, get hold of the connector and wiggle it, any variation is suspect. Clean the connector and cable tie it in at a position where it all works OK, this will last for years, believe me, I have done several !!

Can you use a soldering iron?

It's a simple enough job, if you know how to undo a bolt, use silicon sealant and hold the cold end of a soldering iron...

Next one with the same fault I'll try that, thanks.

Mrcheerful

Thanks everyone, I will have to wait for the weekend and have a go at the repair suggested. I like the instructions get hold of the cold end of the soldering iro (LOL) I will let you all know how my repairs have gone.

Clif

-- cliff100

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I just did one. Just make sure you use 60/40 tin/lead solder and not the lead-free stuff or you will be back with the dry joints that originally caused the problem.

John Weale

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Thanks for that as I would not have realise

-- cliff100

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Don't forget to send me my cut of the 'reconditioned throttle body' cost that you put on the invoice ;-)

Soldering tip: dry joints will usually be a matt grey colour. Good joints are shiny silver, even after a long time has passed. But you can't trust the buggers, you can still have a shiny joint that isn't making good contact.

I have just re soldered the joints and am waiting for my son to get bac

with the silicone, can someone tell me. When everything is dryed e. silicone is the repair instant or has the engine got to run a while. hope I make sense, I didnt want to undo everything again and re solde if I had to wait for the car to run in or whatever.

Thanks Clif

-- cliff100

The silicone is used to provide a watertight seal to the cover plate. Allow a short while for the silicone to cure before running - then that's it.. The article recommends Silastic but any high temperature silicone should do - I used Tetrasyl form the local Autofactors rated up to 250 deg C.

John Weale

The electrical side of the repair is instant. You could even run it before you seal it to check, if you wanted to.

I have now tried the car and although it has improved, it's stil

cutting out. I have since cleaned the plugs again and they show it wa running rich. I am off to buy a better soldering iron as the one use didnt seem to get the metal hot enough (free off a robot magaine my so had) I could not suck all the solder off and start from fresh. It woul only let me heat it enough to add some more solder. Having neve soldered before I will take everything apart again and try thi afternoon. What I did notice after the first repair was the car seeme to be running at a very slow idle speed. Can someone tell me is thi something that needs sorting after the repair, e.g gettng the ca tuned. I do not want to get it tuned if the repair has not worked an I end up buying a replacement Throttle body ?

Thanks for all the advice Clif

-- cliff100

Sorry Chaps me again,

I have had another thought and not taken the car apart again. I hav now found out the chap who first serviced it changed the mixture. have now had this sorted and the car is running fine. I have jus taken it for a run down the A2 approx 40 killometres, everything i running fine and one thing I found is whe the car was serviced The cha broke off one of the breather hoses which should sort out the fina kinks in running when I glue it back on.

you have all saved me so much time and money. Thanks again.

Clif

-- cliff100

Well at least you *shouldn't* have any dry joints in the throttle body now ;-)

Could this cause a hole in the intake valve?