Have I screwed up? Noise in front of motor...

[2005SV6190]

Hi, I have a 2005 Sv6 Commodore 5 speed auto

I have recently (within the last week) modified the intake to allow more air to enter the airbox, buy just removing the intake pipe that curves upwards and replacing it with a cold air intake shroud off of the monaro.
I replaced the air filter with a K & N panel filter.

Yesterday I was advised to clean my airflow sensor and told to spray it onto the outer and inner components of my airflow sensor.

I then left the sensor unplugged to dry as I was not driving the car that day.
This afternoon I plugged the sensor back in and started the car up. It sounded really odd when it started up and was a little rough on idle. I then gave it a little throttle and noticed a knocking noise at the front of the motor every time I hit the accelerator. The car seems fine to drive and is alot more responsive but I am VERY concerned about this noise which I believe is in the intake manifold. Is this a normal thing when the car is adjusting itself to the new air levels or have I stuffed the sensor by spraying it? By the way I did NOT bridge any wiring with the spray.

Thanks,
Reece

[richardpalinkas]

What did u clean it with?

[impulsive]

detergent, what else... lol

[2005SV6190]

crc maf sensor cleaner

[Sabbath']

Did you tighten up all the clamps that you may have loosened?

[2005SV6190]

Yes, 100 percent positive

[impulsive]

i doubt the cleaning of your maf and knock are related. and if there is something in your intake manifold then remove the manifold and shake it out

[2005SV6190]

Thanks mate, will give it a go when I get the chance. The knock happened directly after I cleaned the maf, so I wasn't going to rule it out.
To be honest, it does sound like theres something in there but what is the question.

Cheers