Hi, I have a 1998 Toyota Camry XLE V6 with 98K miles. I am the original owner and the car has been great and trouble free.
About two weeks ago I installed new NGK Laser Platinum, # 3452, Spark Plugs. I did not remove any parts to get to the spark plugs closest to the firewall.
At the same time I switched to Costco Regular Unleaded from Chevron Supreme Gasoline.
Now I have a Fuel Consumption Problem, 19 to 20 MPG from the high 20s. The engine runs fine and the check engine light is not on.
I have read the forms and noted various fixes such as O2 Sensors, EGR, PCV, VSV ...
If there is a need to replace any of these sensors and valves, then should the check engine light come on first?
Any other recomendations?
Thanks for the help.
***** I just got a Pocket Scanner and it came back with an error code "P1300". *****
Could I have done something wrong with the spark plug installation???
Thx. again,
About two weeks ago I installed new NGK Laser Platinum, # 3452, Spark Plugs. I did not remove any parts to get to the spark plugs closest to the firewall.
At the same time I switched to Costco Regular Unleaded from Chevron Supreme Gasoline.
Now I have a Fuel Consumption Problem, 19 to 20 MPG from the high 20s. The engine runs fine and the check engine light is not on.
I have read the forms and noted various fixes such as O2 Sensors, EGR, PCV, VSV ...
If there is a need to replace any of these sensors and valves, then should the check engine light come on first?
Any other recomendations?
Thanks for the help.
***** I just got a Pocket Scanner and it came back with an error code "P1300". *****
Could I have done something wrong with the spark plug installation???
Thx. again,