|
|
2005 Mazda6 Comp Code PO300 Engine Running Rough, Missing
|
|
|
| |
|
Roselle
New User
Apr 18, 2010, 4:18 PM
Post #1 of 1
(3459 views)
|
2005 Mazda6 Comp Code PO300 Engine Running Rough, Missing
|
Sign In
|
|
- 2005 Mazda - Mazda6 - V6 - Automatic & Manual Transmission - 111,000 miles - "Check Engine" light on - Computer Code PO 300 "Random Misfire" - Replaced spark plugs - seemed to correct problem ("Check Engine" light off, idled smoothly) just for couple of minutes, then "Check Engine" light returned, rough performance, including idling rough, returned immediately - "Check Engine" light remains on, car runs rough, missing, in both automatic & manual transmissions - Alot of difficulty going up hill, have to use manual transmission to shift just to make it - Automatic transmission seems to shift way too quickly through the gears on up to 6th gear before reaching 30 mph ANY SUGGESTIONS AS TO HOW TO DIAGNOSE & FIX THE PROBLEM??
|
|
| |
|