× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1999 Lexus RX300 3.0L Excessive Emissions, Misfire, Poor Fuel Economy, lacks power
Posted to Asian Driveability on 8/10/2006 2 Replies

This vehicle has negative fuel trims on bank 2 and positive trims on bank 1. I tried swapped af sensors from side to side and trims remained the same. I have replaced MAF and 1 igntion coil. This suv has no power sounds like pinging under load. I have checked ...

2 Replies Received (View Replies)

  Related Documents & Media  1999 Lexus RX300

 
Message Closed w/FIX

car Vehicle Data

1999 Lexus RX300

VIN JT6HF10U3X
Engine3.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Misfire, Poor Fuel Economy, Lacks Power
OccursUnder Load

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0172Fuel System Too Rich (Bank 1)
P0300Multiple Misfire Detected
P0302Cylinder 2 Misfire Detected
P0304Cylinder 4 Misfire Detected
P0306Cylinder 6 Misfire Detected
Message Closed w/FIX

car Vehicle Data

1999 Lexus RX300

VIN JT6HF10U3X
Engine3.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Misfire, Poor Fuel Economy, Lacks Power
OccursUnder Load

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0172Fuel System Too Rich (Bank 1)
P0300Multiple Misfire Detected
P0302Cylinder 2 Misfire Detected
P0304Cylinder 4 Misfire Detected
P0306Cylinder 6 Misfire Detected