reactor60

I have a 90 formula firebird. it has 40k original factory miles on it and I took it down to get the thing smogged, it passed the initial test then came the evap canister test the guy doing the test went to put on his gas cap adapter and it fit loose he told me that since it did not fit right I needed to get a new gas tank, now I really find that hard to believe that plastic gas caps would wear out the filler neck on a steel gas tank, plus the fact that the car has such low miles on it, to think of having to replace the gas tank, I was wondering if anyone else on here from calif has had that problem..

thtanner

iTrader: (1)

Go to another smog station. He just didn't have the right evap test tool.

tealman92

They actually put a cap on your fuel tank not your gas cap on a tester?

reactor60

yes they have a adapter that looks like a factory gas cap and then they pressurize the system and look for drops in the gauge, my gas cap fits perfect and seals the system like it was made to do, when i unscrew the cap it releases pressure from the system like it is meant to, I just got done putting a new fuel pump in it which is no easy task and really don't want to spend the money buying a new fuel tank, if I have to do that I am going to take the tank before I install it to a smog check station and have them put the adapter on the tank, if the problem is still the same then It would make me want to think that they are using a bogus adapter in the test to fail the older cars that the state of calif does not want on the road, if that is the case then I am going to go to the state smog referee and have them explain to me why the adapter they are using is not sealing on a brand new gas tank.

Ghettobird52

What he said, BUT go with your failed smog slip in hand, show the inspector the failed slip and tell him about the gas cap, have him verify that he has the correct cap before you spend $55

apie2546

Easiest way to pass is to just move

Kidding aside I know exactly the tool he has. One of my mechanic friends has one for when Texas becomes smog-stricted

MY87LT

iTrader: (2)

I was failed twice for the same issue with the gas cap adapter last year and they too said that I would either need a new gas tank or I replaced it. I went to a third place and finally passed after a brief argument over the legality of my slp headers.

Ghettobird52

Gotta have that C.A.R.B plate!

MY87LT

iTrader: (2)

SLP didn't weld one onto my headers. I have an underhood decal from them instead with the C.A.R.B. and header part numbers.