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car hardly has power P0102 mad code


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I was driving in traffic and as always in stop and go the car dies in middle lane.. I did get it started but it lacks power but I can't find much info about this other then cleaning the mad which I will do since I was able to make it to the auto store.

 

Anyone else have this issue before? What did you do to fix it?

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Year?  Model? Engine?

 

 

Any work done recently?

The year is in my sig, the engine is a 22E with 25D heads, no work done in the past 3 months.. I ended up spraying the MAF and it started and ran fine.. I ended up backing up into my spot at home and I sat in the car and the car just stalled on me.. I waited about 5 min and I started it up and it ran normal.

 

If I pull the MAF harness the car will die instantly. I notice the harness no longer clicks to lock on the MAF and for what reason I don't know why. but it's not like it's falling out as well.

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Pull the plug off and check the pins.

Make sure there isn't dirt stuck down in the connector around the outside of the rubber seal. Also make sure the rubber seal is positioned correctly.

 

Have seen a couple of these fail. Actually replaced the one in my GFs car over the weekend because of these exact symptoms.

 

I've found that the solder joints crack where the pins in the connector attach to the leads coming from the PCB inside the sensor. It interrupts the signal from the sensor to the computer, and when the computer loses the MAF signal it just kills the engine.

A fairly easy fix if you can solder.

Cut/ scrape the RTV from around the square cover on top of the sensor, then pry the cover off. Touch up the solder on each of the pins, then pop the cover back on and seal with new RTV.

You can test the sensor after repairing the solder before putting the cap back.

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The rubber seal on the harness right? I own 5 soldering irons so it's no big deal.. I hope it's not going to be a pain to get the cap off.. I just don't want it to happen during rush hour if I take the car this evening.

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