BNR32 Bogging Problem!!!!!!

[nickisonfire]

Can someone help me it's the first time that this happen to me since i buy the car. I recently install a tomei fuel pump and hardwire it , change the fuel filter and the spark plug change the gap. But it doesnt happen frenquenly, it just happen when the car is hot and at each 200km . IT bogging so bad that i cant accelerate but just like 5 sec max after its fine, i clean my maf, test my coilpack but everything is fine Can someone help me plz sorry for my english

[Spencer87]

You might want to check the connections in that black box thing.

I was having bogging/throttle problems and it didnt go away until cleaning the sensor and resoldering those connections.

[nickisonfire]

The MAf you want to say???? how to resold???? juste open the af and resold all the connector???

[Spencer87]

Yes (sry ment to include that).

Yeah you'll need To cut the sealant (don't unscrew the screws) on the flat top side and take the cover off. Once inside, you can resolder the connections.

If you have a Nissan dealership near by, see if you can pick up some throttle body cleaner, otherwise, I was told contact cleaner from crappy tire does the trick too.

[louis110]

I was having hesitation problems for the past couple of weeks. It was starting to get really bad, stalling at lights. I got MAF cleaner from canadian tire, sprayed down the MAFs and problem solved (still very slight hesitation at 2000 rpm, maf probably wasn't cleaned well enough). The run-off from the spray was turning brown lol.

[Spencer87]

Yeah spray it down first, it might save you the hassle of having to pop the MAF open.

And yeah, my paper towel turned black haha. Definitely work it!

[nickisonfire]

thank you everyone i already clean it but i will solde it this week

[Spencer87]

I was on my phone early, I was going to edit my post but I didn't want it to get missed.

I had no experience soldering prior to doing this, this was also this first thing I've done by myself so hopefully this information helps you as it helped me.

Pretty much it goes like this, use an exacto knife to cut and remove the sealant around the flat top. Dont press too hard when cutting between the flat top and the side but use your judgement. Once you remove the sealant, you can gently pry the cover up. I used two butterknifes but you just need to gently press the sides in so that you can slide it up (the cover jets out at the bottom so when its pressed down, it goes under the edge to hold it in). Extra hands can help - but I hear these are often brittle so be careful. I didn't crack mine so just take your time and I'm sure be fine.

Once inside, you see a shiny copper plate. Above it you'll see connections. I added a little metal stuff (you can see the level of knowledge I have about soldering) to make sure connections were perfect but mainly reheated them.

If you already knew this, great, if not, someone else can enjoy.

Let us know how it goes.

[Spencer87]

On one separate note on this topic, a couple mechanics recommend Brake cleaner as it has no left over residue. If anyone can verify this with and possibly add a why or why not, I want to redo mine when I clean my intake filter.