I have code po174 & po171

125

Asked by Oct 27, 2013 at 03:57 AM about the 2001 Lexus RX 300 FWD

Question type: Maintenance & Repair

As I told y I have code po174 & po171 can with vsc light & engine light on so ca some
one help me

10 Answers

116,045

http://www.obd-codes.com/p0171

25 of 25 people found this helpful.
116,045

http://www.obd-codes.com/p0174

10 of 10 people found this helpful.
116,045

Check out the possible solution sections of those links. It might help you figure out what is going on with it. Hope these help

6 of 6 people found this helpful.
Best Answer Mark helpful
125

Thanks alot what Im thinking also about air flow meter because some time for a few minutes the both cods gone

2 of 2 people found this helpful.
116,045

Most likely just cleaning the MAF will fix you issues. There is a special cleaner for doing this and make sure not to touch any of the sensors internal parts with your fingers.

1 of 1 people found this helpful.
125

Thanks bro I will repace the air flow because I did I cleaned it many times with spatial cleaner with out resulat

125

Keep in touch please I will let y know

261,925

I've had those codes as well, and most of the time it is a vaccum leak. Check all your hoses for cracks and collapsed hoses. Best to run the car and open the hood, and listen for hissing, move some hoses around to help. Un-metered air from the MAF is being detected. Do this before you spend big money on a new MAF.

125

There is no leak Im sure about that

1 of 1 people found this helpful.
20

I am having this issue. Can you please tell what was the problem with yours? I appreciate the reply. Ty

2 of 2 people found this helpful.

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