2G P0100 P0105 P0110 CEL repair help

[Flossy_DSM]

My GST got these codes out of nowhere and I was wondering whether or not just swapping the ECU and o2 sensors will fix this. I'm not entirely sure if this is the problem though with the codes so yeah. Help please? And thanks a lot.

 

[pauleyman]

Replacing random parts typically doens't fix the problem. Those three codes are mass air, barometric presure and intake temp. all three are located in the mass air flow sensor. Let me guess. Did you recently change the filter? Go see if the mas is unplugged. If it is plug it back in and then reset. If that isn't it at least start at the mass airflow sensor and the harness. Your problem lies there.

 

[jcart953]

Heres what your MAF sensor looks like:

2g Mass Air Sensor MAF (MAS) Eclipse Talon DSM Turbo 4g63 | eBay

In the second picture make sure its actually plugged up like such:

95 96 97 99 Mitsubishi Eclipse mass air flow sensor MAF MAS Talon 1G 2G DSM 4G63 | eBay

If that's all taken care of and you still have that code then you could just have a bad MAF sensor which is an easy fix. You could do one of two things :

1) Have someone check and make sure its actually bad.

2) Either swap it with a buddies or run to your local auto parts store/junk yard and pick one up an swap it in.

You don't even need a shop to do this, it takes like 5 mins if that to unscrew the 4 bolts. Post back and good luck.

 

[pauleyman]

The likelyhood of having all three sensors out is low. The problem likely lies in the connection and/or harness. I'm still waiting for you to tell us it was unplugged. We saw this problem 20 years ago.

 

[kodeelittle]

Did you figure this out? I have been searching for a week trying to find a solution to the exact same issue. I have the same three codes, bought a known good MAF, replaced it and have the same issue. It runs fine until it warms to operating temp, and then starts bucking/cutting out. Checked for leaks everywhere. New wires plugs....no luck. If I leave the MAF unplugged it runs fine, but really rich. Every search ive done, Ive seen similar or identical issues, with no solution....HELP