Smog check LA area - help plz

[Foxx]

Originally Posted by Penguin

Generally shops like to replace, not clean, things as replacement is a sure fix while cleaning may not work, e.g., if they try cleaning it and it doesn't work, people are unhappy to pay for the cleaning.

I would try cleaning it myself and then clearing the codes to see if i comes back. A Google search will lead you to may DIY's for cleaning MAF sensors. CRC makes a specific spray can cleaner for MAF and most full-line auto parts stores, such as NAPA, sell it.

Buy CRC Mass Air Flow Sensor Cleaner 05110 at Advance Auto Parts

It's worth a try, but be VERY gentle as most MAF sensors are rather fragile.

You can also check the air intake boot/path for any obvious cracks or air leaks, although I would generally expect a different code if it was an air leak problem.

P.S. Here's a nice summary of the code P0102:

OBD-II Trouble Code: P0102 Mass Air Flow (MAF) Circuit Low Input

P.P.S. If the stock air filter was replaced with an oiled air filter, such as a K&N, there is a good chance the MAF is contaminated by excessive oil from the filter.

Thank you.
BTW, I don't have an air filter, replaced it with CAI many yrs ago, so I guess that possibility is out. Stupid question, where exactly is the MAF located? also, where is the sensor? can it be easily accessed?
Thanks!