
1999 Lexus LS400 4.0L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on
This vehicle has me going in circles. Just finished major 90k service. During warm up, vehicle runs just fine. At operating temperature, idle will occasionally surge down accompanied by slightly lower vacuum readings, 18 or 19 compared to the steady 20 at idle...
FIX posted 3/16/2006
![]()
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle (View Replies)6 Replies Received(Hide Replies)6 Replies Received
|
Message Closed w/FIX
|
VIN | JT8BH28F0X |
Engine | 4.0 L / 8 cyl / GAS |
Trans | 5-speed Automatic (Electronic) |
Delivery | FI / sefi |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Hesitation, Misfire, MIL Lamp On |
Occurs | Hot |
Trouble Codes
P0300 | Multiple Misfire Detected |
Message Closed w/FIX
Vehicle Data
1999 Lexus LS400
VIN | JT8BH28F0X |
Engine | 4.0 L / 8 cyl / GAS |
Trans | 5-speed Automatic (Electronic) |
Delivery | FI / sefi |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Hesitation, Misfire, MIL Lamp On |
Occurs | Hot |
Trouble Codes
P0300 | Multiple Misfire Detected |