[MT-2500]

Sometimes it takes more than code reading.
Why was cats replaced?
How many miles on it?
What is the basic tune up history?
Any add on stuff on it?
Programers or chips or cold air intakes?
Is fuel trim going rich or lean?

A good factory trained tech or a good repair shop that knows what they are doing should be able to figure it out.

Tip on going to the dealer
Ask that only a factory certified gasoline engine performance specialist work on your car.
Not all dealerships are concerned with how repairs are dispatched, and not all dealership techs bother to take advantage of the training offered by factory (the vast majority of which is paid training). If the dealer is uncooperative, ask for your money back and call around for a dealer that will accommodate you.


Tips on finding a good repair shop.
Check around Ask around
Word of mouth.
Family friends coworkers neighbors business people and delivery people.
Mailmen and parcel delivery people get around and notice a lot of stuff.
Even a good parts house knows what shops are good and not good.
Chamber of commerce and better business bureau and city hall.
If you find a good referral to a repair shop go look them over and talk to them.
Look for a clean looking busy place with nice people running it.
Ask a few questions and ask about their qualifications and training.
Not all places have trained tech/mechanics.
If they do not find a place that does.
Even all dealers do not have all trained techs/mechanics.

Run a basic on the road fuel pressure check and give us a vacuum reading at idel and at 2K RPM.
Post back vacuum reading and fuel mpressure readings.
MT