ok… so some time late last year a branch or something managed to rip my filter off my cold air intake… the check engine light came on and I ignored it, simply thinking I had not tightened the gas cap.
So last week, I went to get my 2003 Suzuki Aerio SX, with 160K miles inspected, and they told me it was through a code that the mass air flow sensor was bad… Later they find out my filter is just missing… the clamp and a section of the rubber was still on the tip… but the rest of long gone.
So I have been driving, 4 or 5K miles with no filter… I buy some mass air flow sensor cleaner, spray it and now my car idles at just under 2K RPM but slowly creeps up to around 3K RPM. It drives fine, but when I pop it out of gear or hold the clutch down… it starts to go nuts.
I put a brand new K&N filter on, I didnt add any oil to it as it didnt say it needed any and it wasn’t dry, but not soaked either.
Now when I went to remove my Mass Airflow Sensor, I did remove a couple other parts first by mistake. I fiddled with the temperature sensor inside my cold air intake, but I couldnt get it out due to the rubber ring around it holding it in and sealing it. I also removed the Fuel Injection Manifold Pressure Sensor but I am pretty sure I put it back on fine. and I did remove the Throttle Position Sensor… so maybe thats my issue?
what should I do to troubleshoot it?
I sprayed wd40 on the throttle above the engine, not sure if it was it or not but my engine was idling at a lower 1800 rmp for a while, still high but not as bad, I took it for a ride around the block and when I got back it was at 3K again, it did run at a steady 20 mph in second gear with my foot off the gass completely.