3 Codes Which Sensor could it be?

[samahi72]

96 Maxima, 110k
Getting 3 codes
P0100 = MAF
P0110 = IAT Sensor
P00325 = Knock Sensor

I already cleaned the MAF. At times the car will run great and then other times it will die and hard to start. I have a feeling one of the sensors is causing the other two sensors to also throw a code, but I don't know where to begin. Ideas?
Thank you

[danielsatur]

Even though you cleaned the MAF/IAT, I would put my money on a new filter air & new MAF/IAT sensors.

[samahi72]

Originally Posted by danielsatur

Even though you cleaned the MAF/IAT, I would put my money on a new filter air & new MAF/IAT sensors.

Thanks for the help. I just got done checking the MAF using a volt meter and all the readings off, idle and 2500 rpm where in speck. Would you still replace it? I hate spending 250.00 if I don't have to.

[Scrapper]

Originally Posted by samahi72

Thanks for the help. I just got done checking the MAF using a volt meter and all the readings off, idle and 2500 rpm where in speck. Would you still replace it? I hate spending 250.00 if I don't have to.

when maf is bad it will die have you tryed replacing tps? and on sensor can throw other sensors off.

[danielsatur]

No - I wouldn't pay $250 for a MAF/IAT sensor.
Check ebay, or do a field test on a used one at the local salvage yard.
You might even get luckey and fine a new one.

For DIY, see Google ''Youtube Auto MAF test''

Is the IAT sensor housed in the MAF?

[Nahkapohjola]

Originally Posted by samahi72

Thanks for the help. I just got done checking the MAF using a volt meter and all the readings off, idle and 2500 rpm where in speck. Would you still replace it? I hate spending 250.00 if I don't have to.

The question is, is it inside the specks at the moment in time your problem is ON?

Disconnect MAF when problem is ON. Now if TPS is ok, engine should run better up to the 2.2k rpm safe mode ceiling. If so, bad MAF... MAF 'can definitely' kill the engine.

Some shops sell now new MAF +50$