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Jeep CJ7 Mopar MPFI - Failed California Smog Test
Have had the MPFI on my CJ-7 for several years. Very satisfied. Problem is,
have moved to CA from TX - in CA they test for NOX - CO and CO2 readings are excellent - failed NOX. Tester (reliable; actually a "Referee" )said the engine was running too lean, thus failed NOX. Looking for a fix, larger injectors?? Just advance the timing?? Need to find out - trying to regeister in CA - but need to pass Smog -- Message posted via http://www.carkb.com |
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#2
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Jeep CJ7 Mopar MPFI - Failed California Smog Test
Is your EGR working? That is supposed to cut out NOx by cooling the top
end I think. Geese, I got 589 NOx on my manually tuned (no computer) BBD (POS) carb in my CJ7 on a recent test and I don't even have a catalytic converter, just a straight pipe to a Dynomax turbo muffler. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) "Tate Austin via CarKB.com" wrote: > > Have had the MPFI on my CJ-7 for several years. Very satisfied. Problem is, > have moved to CA from TX - in CA they test for NOX - CO and CO2 readings are > excellent - failed NOX. Tester (reliable; actually a "Referee" )said the > engine was running too lean, thus failed NOX. Looking for a fix, larger > injectors?? Just advance the timing?? Need to find out - trying to > regeister in CA - but need to pass Smog > > -- > Message posted via http://www.carkb.com |
#3
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Jeep CJ7 Mopar MPFI - Failed California Smog Test
Hi Tate,
I'm surprised he didn't fail you for the injection, as any variance from stock needs certification. Was your CJ a Kalifornia car to begin with, or a state requiring a catalytic converter? NOX is it's job: http://auto.howstuffworks.com/catalytic-converter2.htm Anyway, a new converter will solve your problem. God Bless America, Bill O|||||||O http://www.billhughes.com/ "Tate Austin via CarKB.com" wrote: > > Have had the MPFI on my CJ-7 for several years. Very satisfied. Problem is, > have moved to CA from TX - in CA they test for NOX - CO and CO2 readings are > excellent - failed NOX. Tester (reliable; actually a "Referee" )said the > engine was running too lean, thus failed NOX. Looking for a fix, larger > injectors?? Just advance the timing?? Need to find out - trying to > regeister in CA - but need to pass Smog > > -- > Message posted via http://www.carkb.com |
#4
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Jeep CJ7 Mopar MPFI - Failed California Smog Test
Like Bill said, the cat helps take care of NOx, but it needs to be at
operating temperature for it to function like it should. Take your Jeep for a good highway run right before you take it in for the test, and it will help immensely. Chris "Tate Austin via CarKB.com" <u23830@uwe> wrote in message news:62e877555aa13@uwe... > Have had the MPFI on my CJ-7 for several years. Very satisfied. Problem > is, > have moved to CA from TX - in CA they test for NOX - CO and CO2 readings > are > excellent - failed NOX. Tester (reliable; actually a "Referee" )said the > engine was running too lean, thus failed NOX. Looking for a fix, larger > injectors?? Just advance the timing?? Need to find out - trying to > regeister in CA - but need to pass Smog > > -- > Message posted via http://www.carkb.com |
#5
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Jeep CJ7 Mopar MPFI - Failed California Smog Test
Ditto: http://www.billhughes.com/smog.jpg
God Bless America, Bill O|||||||O c wrote: > > Like Bill said, the cat helps take care of NOx, but it needs to be at > operating temperature for it to function like it should. Take your Jeep for > a good highway run right before you take it in for the test, and it will > help immensely. > > Chris |
#6
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Jeep CJ7 Mopar MPFI - Failed California Smog Test
Bill,
I think (probably wrong) that the Mopar MPFI is 'certified', at least here in the Peoples Republik of Massachusetts. "L.W.(Bill) Hughes III" > wrote in message ... > Hi Tate, > I'm surprised he didn't fail you for the injection, as any variance > from stock needs certification. Was your CJ a Kalifornia car to begin > with, or a state requiring a catalytic converter? NOX is it's job: > http://auto.howstuffworks.com/catalytic-converter2.htm Anyway, a new > converter will solve your problem. > God Bless America, Bill O|||||||O > http://www.billhughes.com/ > > "Tate Austin via CarKB.com" wrote: >> >> Have had the MPFI on my CJ-7 for several years. Very satisfied. Problem >> is, >> have moved to CA from TX - in CA they test for NOX - CO and CO2 readings >> are >> excellent - failed NOX. Tester (reliable; actually a "Referee" )said the >> engine was running too lean, thus failed NOX. Looking for a fix, larger >> injectors?? Just advance the timing?? Need to find out - trying to >> regeister in CA - but need to pass Smog >> >> -- >> Message posted via http://www.carkb.com |
#7
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Jeep CJ7 Mopar MPFI - Failed California Smog Test
Yes it is, but if you want to pass Kalifornia's SMOG, you'd better
have that certificate in your hot little hands. Out here it's the VIN number they run with. God Bless America, Bill O|||||||O http://www.billhughes.com/ Steve Foley wrote: > > Bill, > > I think (probably wrong) that the Mopar MPFI is 'certified', at least here > in the Peoples Republik of Massachusetts. |
#8
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Jeep CJ7 Mopar MPFI - Failed California Smog Test
Do they ever stop smog testing out there? It used to be a 15 year old
vehicle didn't need the smog test, but now they've locked it at 1984 and newer. That's why I'm using the parts from my 87 YJ to rebuild an 83 CJ. "L.W.(Bill) Hughes III" > wrote in message ... > Yes it is, but if you want to pass Kalifornia's SMOG, you'd better > have that certificate in your hot little hands. Out here it's the VIN > number they run with. > God Bless America, Bill O|||||||O > http://www.billhughes.com/ > > Steve Foley wrote: >> >> Bill, >> >> I think (probably wrong) that the Mopar MPFI is 'certified', at least >> here >> in the Peoples Republik of Massachusetts. |
#9
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Jeep CJ7 Mopar MPFI - Failed California Smog Test
They've modified SMOG laws a couple of times here in Kalifornia,
but this last time they stop it letting people like me that like old cars at '76 and older, so this high performance tunnel port 429 engine pictured in front of my '78 Bronco will never meet: http://www.billhughes.com/429ford.jpg God Bless America, Bill O|||||||O http://www.billhughes.com/429.jpg Steve Foley wrote: > > Do they ever stop smog testing out there? It used to be a 15 year old > vehicle didn't need the smog test, but now they've locked it at 1984 and > newer. > > That's why I'm using the parts from my 87 YJ to rebuild an 83 CJ. |
#10
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Jeep CJ7 Mopar MPFI - Failed California Smog Test
We have unannounced highway SMOG check points, just your dui
checks. God Bless America, Bill O|||||||O http://www.billhughes.com/ billy ray wrote: > > Why not install it and just pull it out when the tests need to be done? |
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