
1991 Lexus LS400 4.0L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy
car came with a miss, check with smog machine noticed co going up and down, the o2 sensors fluctuating , maf sensor frecuency should be 35-37 hz reading 22 hz when disconnected maf readings still the same, any ideas? is very weird because usually is lean or ri...
FIX posted 6/8/2012
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Message Closed w/FIX
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VIN | [No VIN Available] |
Engine | 4.0 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / efi |
Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy |
Occurs | Idle |
Trouble Codes
25 | too lean |
26 | too reach |
Message Closed w/FIX
Vehicle Data
1991 Lexus LS400
VIN | [No VIN Available] |
Engine | 4.0 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / efi |
Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy |
Occurs | Idle |
Trouble Codes
25 | too lean |
26 | too reach |