Bogging a bit

**99hawk** · 05-26-2010, 06:32 PM

Hi folks,

Just wondering if anyone has ideas on what is up with my 99 Firehawk.

Recently, I have noticed that between 1500 and 2000-ish RPM, my car has a slight bog on acceleration from gear to gear (more so from 1st to 2nd). It is worse when cold. Also getting worse gas mileage than I recall.

I am thinking could be dirty throttle body, plugs or injectors....am I on the right track....or could it be something like a dirty or old 02 sensor? I have not serviced any of these since new and I am the original owner. I do regular oil changes and the K&N filter is maintained as required.

I have a head and cam package, headers and tune and have aprox. 40K kms (25K miles)....dyno'd at 400RWHP. It is fair weather ride (convertible) and only driven 2-3K a year.

Appreciate any guidance!

**Cutlass** · 05-26-2010, 07:13 PM

Have you cleaned your MAF sensor lately? The oil from a K&N filter can gum those MAFs up and skew it readings.

**99hawk** · 05-26-2010, 07:38 PM

Originally Posted by Cutlass

Have you cleaned your MAF sensor lately? The oil from a K&N filter can gum those MAFs up and skew it readings.

Thanks.....I will check that!

**MistrCreazil** · 05-28-2010, 07:44 AM

Yeahh.. I took my MAF out the other day, and it looked perfectly fine. Sprayed it and wiped out the crap I could see on it, and my car "feels" better. It feels like it kicks less and just has a more stable idle.

**Smittro** · 05-28-2010, 09:41 AM

Originally Posted by Cutlass

Have you cleaned your MAF sensor lately? The oil from a K&N filter can gum those MAFs up and skew it readings.

This.. and make sure you use the proper type of cleaner. CRC is what I and lots of the folks here use. Good stuff that can be bought @ an auto parts.. Don't touch the senor with anything else, let it air dry..