Thanks for the reply.
At 30k, I was getting a cyl #2 misfire OBD-II code and bucking. Replaced wires with a custom set and new Champion platinum plugs. No misfire after that.
Air filter was inspected and changed if necessary every 3k oil change. The one in there now was installed at 46,500 and I verified a few days ago that it still looks clean.
Injectors and throttle body were cleaned 7/24/08 - at 49,699. Not sure the exact mileage this degradation started but the mileage checks I did were at 51,024 and 51,255 which is very close to the cleaning. It was done by the local Texaco Xpress Lube Center.
When cleaning the throttle body, could they have contaminated the MAF (which I recall is somewhere in the air intake stream)?
Can the MAF be cleaned or does it have to be replaced?
I drive mostly trips 5-20 miles with an occasional trip to New Smyrna Beach (145 miles RT), Orlando, or other similar length trips. Annual is around 7k. I am the primary driver (90%) and I don't have a lead foot! The mileage was 19.3 80% of the time. The first thing I thought about was the gas station pumps were not accurate or someone was syphoning gas. I use different stations and the van is in the garage most of the time.
My scanner says the O2 sensors are both ok.
Tuesday, September 16th, 2008 AT 3:21 PM