trouble codes

**grand2000prixgtp** · 08-16-2009

i just got the code po171 System Too Lean (Bank 1). what what should be the first thing i look at?
thanks.

TDCRacing · 08-16-2009

I can tell you exactly what is wrong. You have a vacuum leak. Check EVERYTHING. All hoses and connections. LIM and supercharger gaskets.

**Bio248** · 08-16-2009

most likely a vacuum leak.

**Liquifire** · 08-16-2009

get out the carb cleaner and start spraying if you can't see the leak.......

**grand2000prixgtp** · 08-17-2009

thanks but the code went away the next time i got in my car

**Liquifire** · 08-17-2009

that doesnt mean that the car fixed itself.......

**grand2000prixgtp** · 08-17-2009

well the code came back on. i did check all the vacuum lines before when my car would not start so im not sure what i should look for next?

**Liquifire** · 08-18-2009

get out the carb cleaner and start spraying(while the vehicle is running) in any areas that have vacuum .....all around the intake, vac lines and connections, egr, etc. when you hear the engine rpm's pick up, you have found your leak.

**Reptile** · 08-18-2009

Check to see if any of your vacuum connectors are dry rotted. This code usually comes up when you have a very tiny leak, and carb cleaner won't always tell you where it is by listening to the engine. This is where a tuner helps out tremendously.