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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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3 Replies Received
3 Replies Received
Related Documents & Media | 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 |
Video