Need help ASAP EMISSIONS FAIL.
#16
Lexus Test Driver
iTrader: (6)
Join Date: Aug 2008
Location: Maryland
Posts: 822
Likes: 0
Received 0 Likes
on
0 Posts
need more info on the car. is it 1jz, 2jz, gte, na-t, v8?
with my 1jzgte i passed with flying colors about 2 years ago, because i was running lean as hell. and the motor was stock, and had the stock sc300 exhaust with a mapecu
However,
If you dont have a cat, dont expect to pass.
with my 1jzgte i passed with flying colors about 2 years ago, because i was running lean as hell. and the motor was stock, and had the stock sc300 exhaust with a mapecu
However,
If you dont have a cat, dont expect to pass.
#17
Rookie
Thread Starter
Join Date: Jun 2011
Location: GA
Posts: 84
Likes: 0
Received 0 Likes
on
0 Posts
I don't know how to test the EGR system without a vacuum pump. I did remove the egr system and cleaned the hell out of it, it was pretty dirty. I cleaned out the vsv pump, checked for vacuum leaks, re-routed all the vacuum lines to the right paths.
The only thing that it can be is o2 sensors or cats at this point. A friend of mine is going to let me use his o2 sensors and Im going to go and see what happens. The guy that took my emissions said the cats look original and with 195k on the car Im sure they are toasted. I will have another update later today.
The car is all stock na 2jz, nothing special.
#21
Driver School Candidate
Join Date: Mar 2007
Location: Florida
Posts: 28
Likes: 0
Received 0 Likes
on
0 Posts
if u have a component that has failed none of the acetone or e85 will work. nox is way too high anyway. make sure no vacuum or coolant leaks if it runs hot it will make nox go up. its either egr valve or cat
#22
If you dont have a vacuum pump and need to test the egr just t into a line that has vacuum and hook it up to the egr valve the car should stall out. That would tell you if your egr valve or ports were clogged.
#23
I too failed emissions on Sunday with only high NOx readings, all else were super low, taking it back today after work to get free retest.
Yesterday I bought new air filter, pcv valve, carb cleaned the egr & module, then seafoam them as well, plus seafoam engine oil. White smoke everywhere as expected, drained old oil, added new oil & filter then went to the only E85 station in Philadelphia & added 4 gallons on top of approximately half a tank of premium I already had in my tank. We'll see if I pass now, will let you know it may help.
Yesterday I bought new air filter, pcv valve, carb cleaned the egr & module, then seafoam them as well, plus seafoam engine oil. White smoke everywhere as expected, drained old oil, added new oil & filter then went to the only E85 station in Philadelphia & added 4 gallons on top of approximately half a tank of premium I already had in my tank. We'll see if I pass now, will let you know it may help.
Last edited by philllyj; 07-03-12 at 07:22 AM. Reason: added
Thread
Thread Starter
Forum
Replies
Last Post
ZYTRAM
LS - 1st and 2nd Gen (1990-2000)
9
03-14-18 05:27 PM