2000 Infiniti G20 EGR valve

MIKE MOUNCE

MEMBER
2000 INFINITI G20
4 CYL
2WD
AUTOMATIC
75,000 MILES

My g20 sedan when stopped at a redlight the rpm will after a minute or so go way down and die. I also can smell gas a little. I had a engine light come on and the code said it was running a little rich. Does this sound like an egr valve? I also tried to locate a valve but I cant find one for a g20. When you are on the interstate the engine sounds fine and runs great.

2 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Running rich could be the coolant and oxygen sensor not switching/excessive fuel pressure-Low idle and stalling could be the EGR valve diluting the mixture-

Might also want to check out the idle air control valve and throttle position sensor.

EGR valve is located at no.7 see below

SPONSORED LINKS

Was this

answer

helpful?

Yes

No

+1

Monday, March 17th, 2008 AT 3:58 PM

SERVICE WRITER

MECHANIC
9,123 POSTS

A po172 has causes that include Air intake leaks after the MAF, a Bad MAF, a bad front heated oxygen sensor, a bad injector, and exhaust leak before the cat, bad fuel pressure and inadequete fuel.

Check for exhaust leaks in front of the cat, check for air leaks after the Mass Air Flow sensor. You can try to clean the MAF with electrical cleaner.
Check the fuel pressure to make sure it is in spec. To start with.

Was this

answer

helpful?

Yes

No

+1

Tuesday, March 18th, 2008 AT 5:32 PM