hfranger
Newbie
My 86 jimmy is failing the HC when I had it smogged. We tried the standard timing and mixture adjustments. that got it down but not enough. any suggestions?

Get a vin number tag (the whole section in the door frame,
cut yours out and weld
in the whole section it has a false wall inside the tub so after you smooth the welds
and paint it know body will know)and pink slip
from a pre smog vehicle and your all set.


To the rest of my fellow Californians, there is a little known fact that in MOST of the counties in CA, smog checks are NOT required every 2 years!!! For instance I live in Marin County (just north of San Francisco), and I register all of my vehicles in Lake County (just east of Santa Rosa). To do this I obtained an address from a private parcel post at which point the state of CA only requires ONE smog check for the LIFE of the vehicle!!! So now my two '79 Jimmys, my two Camaros and my Corvette are all registered in Lake County. Haven't done a smog check since. Bowtie Donhfranger said:My 86 jimmy is failing the HC when I had it smogged. We tried the standard timing and mixture adjustments. that got it down but not enough. any suggestions?
Bowtie Don said:To the rest of my fellow Californians, there is a little known fact that in MOST of the counties in CA, smog checks are NOT required every 2 years!!! For instance I live in Marin County (just north of San Francisco), and I register all of my vehicles in Lake County (just east of Santa Rosa). To do this I obtained an address from a private parcel post at which point the state of CA only requires ONE smog check for the LIFE of the vehicle!!! So now my two '79 Jimmys, my two Camaros and my Corvette are all registered in Lake County. Haven't done a smog check since. Bowtie Don
Bowtie Don

Bowtie Don
That worked for me also on a '79 Seville, we worked hard to limp thru compliance & the tester reco'd a new cat. Two years later, clean as a whistle. Otherwise, keep two running motors, just swap-in the wimp every two years; probably need to teardown that deep every two years anyway.4X4HIGH said:If your readings aren't too far off now a new cat will do the trick. The cat will also help lower the nox reading.
