Close
QUESTIONS

RepairPal is your advocate for car care advice and guidance

Q: OBDI Code 25 How do I fix this? on 1991 Lexus LS400

This code OBDI 25 is holding me up from getting smogged can someone please help. Air-Fuel Ratio Lean Malfuntion. What can cause this and how can I fix it?
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
This code is the same as code P0171 on a later model Lexus. I wrote a code explanation to help people in the repair of this code which indicates that the car is running too lean. I do Emissions work in California and deal with this stuff every day.

here is the code explanation: http://repairpal.com/OBD-II-Code-P0171-and-P0174
my car seams to be misfiring. i changed the spark plug wires, that wasn't the problem i put a jumper wire to get codes off dash board, it gave me a code 13, and code 25. the mechanic told me i have to change my timing belt. i don't feel that is right. is there a simple fix or something to try?
Didn't find what you were looking for?