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P0170 Diagnostic Trouble Code Discussion for June 2015

Fuel Trim Lean Or Rich (Bank 1)

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Trouble Ticket Help Requests for DTC P0170
Help Request Posted
1995 Lexus LS400 4.0L MIL Lamp on VIN: JT8UF22E0S
P0170: Fuel trim bank 1. ... engine light on with code P0170, but car is still running good. I found fuel trim out of pecs and both bank 1 and bank 2 stay at 35.16%(LTFT)19.53%(STFT) at idle. After we changed intake boot(broken)and MAF sensor(used), I rechecked the fuel trim, now the ...
June 03, 2015